Counties of Michigan
MR LN HD BN SJ CS BE WY WA JK CA KA VB MB OK LV IN ET BR AG SC LP GE SH CN IO KN OW SN TS SG GR MT MK HR BA MD IB ME NW OE AR GL CL OS LK MS IS OG RS MI WX MA AC OD CR KK GT BZ AP MM OT AN LL PI CB EM CV ↘ ↑ MC CH LU SO AL DL MO MQ DK IR BG HO ON GO KW ↓ ↑
Location	Michigan
Number	83
Populations	2,172 (Keweenaw) – 1,751,169 (Wayne)
Areas	508 square miles (1,320 km2) (Cass) – 5,966 square miles (15,450 km2) (Keweenaw)
Government	County government
Subdivisions	Cities, charter townships, civil townships, villages, unincorporated communities, census-designated places

There are 83 counties in the U.S. state of Michigan. The boundaries of these counties have not changed substantially since 1897. However, throughout the 19th century, the state legislature frequently adjusted county boundaries. County creation was intended to fulfill the goal of establishing government over unorganized territory, but a more important goal was encouraging settlement by surveying the land and dividing it into saleable sections.

The creation of counties generally occurred in two stages. First the boundaries of a county were declared and given a name. The county appeared on maps, even though this may have been the entire extent of a county's tangible existence for several years. During this period, the as-yet–unorganized county was attached to another already organized county for administrative purposes. The legislature frequently changed the administrative attachment of these unorganized counties. Residents of such an attached county could petition the legislature for organization, which was the granting of full legal recognition to the county.

There are many cities and villages that span county boundaries in Michigan, including its capital, Lansing. For a few years during the early 1970s, split cities briefly had authority to petition to change the county boundaries to accord with the city boundaries. The only city to take advantage of this brief opportunity was New Baltimore (previously split between Macomb County and St. Clair County; now completely in Macomb). This transfer of territory from St. Clair to Macomb was the only county boundary change in Michigan since the early 20th century.

The state constitution of 1850 permitted an incorporated city with a population of at least 20,000 to be organized into a separate county of its own.^[1] The Constitution of 1908 retained this provision, but raised the population threshold to 100,000.^[2] No city was ever organized into an independent county in this fashion and when a new Constitution took effect in 1963, the provision was removed.

Michigan's boundary with Illinois is formed by Lake Michigan, and three counties have water boundaries with Illinois^{[citation needed]}: Berrien County, Van Buren County, and Allegan County. Michigan also has a boundary with Minnesota, which is formed by Lake Superior. The water boundary in this instance is formed by two counties: Ontonagon County and Keweenaw County. The land boundary with Wisconsin continues into Lake Superior, involving both Gogebic County (which shares a land border) and Ontonagon County (water boundary only).

Nine counties have names invented by the ethnologist Henry Schoolcraft, usually adapted from parts of Native American words, but sometimes having parts from Greek, Arabic and Latin roots.^[3] Schoolcraft's made-up words have disputed sources. While he was a devotee of Native American words and culture, some of his words may have originated with tribes from other areas of the country, such as New York or the Northeast, where many settlers to Michigan came from. Real Native words were eradicated, and he substituted made-up words, sometimes with a kernel of Indian language or sound in them.^[4][5][6]

A second group of four counties were renamed for Irish locales (counties Antrim, Clare, Roscommon and Wexford), apparently because it was close to the heart for certain Michigan legislators or their constituents.

Ten counties, the so-called "cabinet counties", were named for persons who served in Andrew Jackson's presidential administration, which was tied to Michigan's anticipated ascendancy to statehood. Eight were named in 1829. Livingston County was named in 1833. Cass County was also named in 1829, but Governor Lewis Cass did not become a member of Jackson's Cabinet until 1831.^[3][4][7]

The FIPS county code is the five-digit Federal Information Processing Standard (FIPS) code which uniquely identifies counties and county equivalents in the United States. The three-digit number is unique to each individual county within a state, but to be unique within the entire United States, it must be prefixed by the state code. This means that, for example, the number 001 is shared by Alcona County, Michigan, Adams County, Wisconsin, and Adair County, Iowa. To uniquely identify Alcona County, Michigan, one must use the state code of 26 plus the county code of 001; therefore, the unique nationwide identifier for Alcona County, Michigan is 26001. The links in the column FIPS County Code are to the Census Bureau Info page for that county.^[8]

County	FIPS code[8]	County seat[9]	Est.[9]	Origin	Etymology	Population (2023)[10]	Area[9]	Map
Alcona County	001	Harrisville	1840 (boundaries declared) 1869 (organized)	From unorganized territory; named Negwegon County until 1843	Schoolcraft pseudo-Native American name	10,489	1,791 sq mi (4,639 km2)
Alger County	003	Munising	1885	From part of Schoolcraft County	Russell A. Alger, (1836-1907): Governor and national politician	8,757	5,049 sq mi (13,077 km2)
Allegan County	005	Allegan	1831 (boundaries declared) 1835 (organized)	From part of Barry County, and unorganized territory	Schoolcraft pseudo-Native American name	121,939	1,833 sq mi (4,747 km2)
Alpena County	007	Alpena	1840 (boundaries declared) 1857 (organized)	From part of Mackinac County, and unorganized territory Was named Anamickee County until 1843.	Schoolcraft pseudo-Native American name	28,904	1,695 sq mi (4,390 km2)
Antrim County	009	Bellaire	1840 (boundaries declared) 1863 (organized)	From part of Mackinac County; named Meegisee County until 1843	County Antrim, now in Northern Ireland	24,409	602 sq mi (1,559 km2)
Arenac County	011	Standish	1831 (boundaries established) 1883 (organized)	From unorganized territory; annexed to Bay County in 1857, but reinstated in 1883	Schoolcraft pseudo-Native American name	15,145	681 sq mi (1,764 km2)
Baraga County	013	L'Anse	1875	From part of Houghton County	Frederic Baraga (1797-1868): Catholic missionary and first bishop of Sault Ste. Marie	8,310	1,069 sq mi (2,769 km2)
Barry County	015	Hastings	1829 (boundaries established) 1839 (organized)	From unorganized territory	William T. Barry (1784-1835): Postmaster General in the Jackson Administration	63,808	577 sq mi (1,494 km2)
Bay County	017	Bay City	1857	From parts of Arenac, Midland, and Saginaw Counties	Saginaw Bay	102,500	631 sq mi (1,634 km2)
Benzie County	019	Beulah	1863	From part of Leelanau County	French name of Betsie River: (rivière aux) Bec-scies, the "(river of) sawbill ducks"	18,441	860 sq mi (2,227 km2)
Berrien County	021	St. Joseph	1829	From unorganized territory	John M. Berrien (1781-1856): Attorney General in the Jackson Administration	152,261	1,581 sq mi (4,095 km2)
Branch County	023	Coldwater	1829	From unorganized territory	John Branch (1782-1863): Secretary of the Navy in the Jackson Administration	45,215	519 sq mi (1,344 km2)
Calhoun County	025	Marshall	1829	From unorganized territory	John C. Calhoun (1782-1850): Vice President of the United States in the Jackson Administration	133,366	718 sq mi (1,860 km2)
Cass County	027	Cassopolis	1829	From unorganized territory	Lewis Cass (1782-1866): Secretary of War in the Jackson Administration	51,642	508 sq mi (1,316 km2)
Charlevoix County	029	Charlevoix	1869	From parts of Antrim, Emmet, and Otsego Counties	Pierre François Xavier de Charlevoix (1682-1761): Jesuit traveller and historian of New France	26,159	1,391 sq mi (3,603 km2)
Cheboygan County	031	Cheboygan	1840	From part of Mackinac County	Cheboygan River	26,048	885 sq mi (2,292 km2)
Chippewa County	033	Sault Ste. Marie	1827	From part of Mackinac County	Ojibwa Native American tribe, also known as the Chippewa	36,264	2,698 sq mi (6,988 km2)
Clare County	035	Harrison	1840	From part of Mackinac County, and unorganized territory; named Kaykakee County until 1843	County Clare, Ireland	31,316	575 sq mi (1,489 km2)
Clinton County	037	St. Johns	1831	From unorganized territory	DeWitt Clinton (1769-1828): Governor of New York.	79,720	575 sq mi (1,489 km2)
Crawford County	039	Grayling	1840	From part of Mackinac County and unorganized territory. Was named Shawano County until 1843.	William Crawford, (1732-82), American Revolutionary War colonel western surveyor	13,538	563 sq mi (1,458 km2)
Delta County	041	Escanaba	1843	From part of Mackinac County and unorganized territory.	Greek letter delta, referring to the triangular shape of the original county, which included segments of Menominee, Dickinson, Iron and Marquette counties	36,790	1,992 sq mi (5,159 km2)
Dickinson County	043	Iron Mountain	1891	From parts of Iron County, Marquette County and Menominee County.	Donald M. Dickinson (1846-1917): Postmaster General in the Cleveland Administration	25,982	777 sq mi (2,012 km2)
Eaton County	045	Charlotte	1829	From unorganized territory.	John Eaton (1790-1856): Secretary of War in the Jackson Administration	108,820	579 sq mi (1,500 km2)
Emmet County	047	Petoskey	1840	From part of Mackinac County. Was named Tonegadana County until 1843.	Robert Emmet (1778-1803): Irish nationalist and rebel leader	34,123	882 sq mi (2,284 km2)
Genesee County	049	Flint	1835	From parts of Lapeer County, Saginaw County and Shiawassee County.	Seneca word, "je-nis-hi-yeh," meaning "beautiful valley": named after western New York valley from which many settlers came	401,522	649 sq mi (1,681 km2)
Gladwin County	051	Gladwin	1831	From unorganized territory.	Major Henry Gladwin, British commander of the fort at Detroit during the siege by Chief Pontiac in 1763-64.	25,853	516 sq mi (1,336 km2)
Gogebic County	053	Bessemer	1887	From part of Ontonagon County.	Probably from the Chippewa "bic" which most references interpret as "rock."	14,224	1,476 sq mi (3,823 km2)
Grand Traverse County	055	Traverse City	1840 (boundaries declared) 1851 (organized)	From part of Mackinac County; named Omeena County until 1851.	French grande traverse[note 1] ("long crossing"), given first to Grand Traverse Bay by French voyageurs.	96,421	601 sq mi (1,557 km2)
Gratiot County	057	Ithaca	1831	From unorganized territory.	Captain Charles Gratiot (1788-1855), built Fort Gratiot at the present site of Port Huron	41,368	572 sq mi (1,481 km2)
Hillsdale County	059	Hillsdale	1829	From unorganized territory.	From its terrain, made up of hills and dales.[12]	45,587	607 sq mi (1,572 km2)
Houghton County	061	Houghton	1845	From parts of Marquette County and Ontonagon County.	Douglass Houghton (1809-1845), first state geologist of Michigan, physician and surgeon, mayor of Detroit (1842-1843)	37,599	1,502 sq mi (3,890 km2)
Huron County	063	Bad Axe	1840	From part of Sanilac County.	Lake Huron, which the French named lac des Hurons after the Hurons.	30,927	2,136 sq mi (5,532 km2)
Ingham County	065	Mason	1829 (boundaries declared) 1838 (organized)	From parts of Shiawassee County, Washtenaw County and unorganized territory.	Samuel D. Ingham (1779-1860), U.S. Secretary of the Treasury in the Jackson Administration	284,637	561 sq mi (1,453 km2)
Ionia County	067	Ionia	1831	From part of Mackinac County and unorganized territory.	Province in ancient Greece	66,262	580 sq mi (1,502 km2)
Iosco County	069	Tawas City	1840	From unorganized territory. Was named Kanotin County until 1843.	Schoolcraft pseudo-Native American name	25,373	1,891 sq mi (4,898 km2)
Iron County	071	Crystal Falls	1885	From parts of Marquette County and Menominee County.	For the iron deposits and mines found in the county	11,740	1,211 sq mi (3,136 km2)
Isabella County	073	Mt. Pleasant	1831	From part of Mackinac County and unorganized territory.	Queen Isabella I (1451-1504) of Spain, under whose patronage Columbus undertook his voyages.	64,118	578 sq mi (1,497 km2)
Jackson County	075	Jackson	1829 (boundaries declared) 1832 (organised)	From part of Washtenaw County and unorganized territory.	Andrew Jackson (1767-1845), 7th President of the United States and President when Michigan was admitted to the Union	159,424	724 sq mi (1,875 km2)
Kalamazoo County	077	Kalamazoo	1829	From unorganized territory.	Named for the Kalamazoo River. See Etymology of Kalamazoo for a discussion of the river's name.	262,215	580 sq mi (1,502 km2)
Kalkaska County	079	Kalkaska	1840	From part of Mackinac County. Was named Wabassee County until 1843.	Schoolcraft pseudo-Native American name	18,490	571 sq mi (1,479 km2)
Kent County	081	Grand Rapids	1831	From part of Mackinac County and unorganized territory.	New York jurist James Kent, who represented the Michigan Territory in its dispute with Ohio over the Toledo Strip.	661,354	872 sq mi (2,258 km2)
Keweenaw County	083	Eagle River	1861	From part of Houghton County.	Ojibwe word gakiiwe-wewaning meaning "portage"	2,172	5,966 sq mi (15,452 km2)
Lake County	085	Baldwin	1840	From part of Mackinac County. Was named Aischum County until 1843.	Has several small lakes and lies near Lake Michigan	12,734	575 sq mi (1,489 km2)
Lapeer County	087	Lapeer	1822	From parts of Oakland County and St. Clair County.	An Americanization of the French la pierre, meaning "the rock" (flint)	88,977	663 sq mi (1,717 km2)
Leelanau County	089	Suttons Bay Township	1840	From part of Mackinac County.	Schoolcraft pseudo-Native American name	23,019	2,532 sq mi (6,558 km2)
Lenawee County	091	Adrian	1822	From part of Monroe County.	A Schoolcraft pseudo-Native American name for man, from either the Delaware leno or lenno or the Shawnee lenawai	97,520	761 sq mi (1,971 km2)
Livingston County	093	Howell	1833 (boundaries declared) 1836 (organized)	From parts of Shiawassee County and Washtenaw County.	Edward Livingston (1764-1836): second Secretary of State in the Andrew Jackson administration	196,757	585 sq mi (1,515 km2)
Luce County	095	Newberry	1887	From parts of Chippewa County and Mackinac County.	Named for Michigan Governor Cyrus G. Luce	6,435	1,912 sq mi (4,952 km2)
Mackinac County	097	St. Ignace	1818	From part of Wayne County. Was named Michilimackinac County until 1837.	Originally Michilimackinac, believed to be a French interpretation of the Native American name for Mackinac Island, meaning "big turtle"	10,851	2,101 sq mi (5,442 km2)
Macomb County	099	Mt. Clemens	1818	From part of Wayne County.	Named for U.S. General Alexander Macomb, a notable officer of the War of 1812	875,101	570 sq mi (1,476 km2)
Manistee County	101	Manistee	1840	From part of Mackinac County.	Named for the Manistee River, which in turn is from the Ojibwe name, ministigweyaa meaning "(river) at whose mouth there are islands"	25,562	1,281 sq mi (3,318 km2)
Marquette County	103	Marquette	1843	From parts of Chippewa County and Mackinac County.	Named for French Jesuit missionary Jacques Marquette	66,999	3,425 sq mi (8,871 km2)
Mason County	105	Ludington	1840	From part of Mackinac County. Was named Notipekago County until 1843.	Named for Michigan Governor Stevens T. Mason	29,159	1,242 sq mi (3,217 km2)
Mecosta County	107	Big Rapids	1840	From parts of Mackinac County and Oceana County.	Named for Mecosta, a Native American leader	41,099	571 sq mi (1,479 km2)
Menominee County	109	Menominee	1861	From part of Delta County. Was named Bleeker County until 1863.	Named for the Menominee Native American people	22,945	1,338 sq mi (3,465 km2)
Midland County	111	Midland	1831	From part of Saginaw County and unorganized territory.	Located near the geographical center of the Lower Peninsula	84,039	528 sq mi (1,368 km2)
Missaukee County	113	Lake City	1840	From part of Mackinac County.	Named for Missaukee, an Ottawa leader who signed land-grant treaties in 1831 and 1833	15,311	574 sq mi (1,487 km2)
Monroe County	115	Monroe	1817	From part of Wayne County.	Named for James Monroe, the fifth U.S. President	155,045	680 sq mi (1,761 km2)
Montcalm County	117	Stanton	1831	From part of Mackinac County and unorganized territory.	Named for Louis-Joseph de Montcalm, a French military commander in Quebec	68,154	721 sq mi (1,867 km2)
Montmorency County	119	Atlanta	1840	From part of Mackinac County and unorganized territory. Was named Cheonoquet County until 1843.	House of Montmorency, influential in the history of French Canada	9,678	562 sq mi (1,456 km2)
Muskegon County	121	Muskegon	1859	From parts of Oceana County and Ottawa County.	Muskegon River running through county, from the Ojibwa/Chippewa word mashkig meaning "swamp" or "marsh."	176,564	1,459 sq mi (3,779 km2)
Newaygo County	123	White Cloud	1840	From parts of Mackinac County and Oceana County.	Named for a Chippewa leader who signed the Saginaw Treaty of 1819[13]	51,108	861 sq mi (2,230 km2)
Oakland County	125	Pontiac	1819 (boundaries declared) 1820 (organized)	From part of Macomb County.	The numerous "oak openings" in the area: "majestic orchard[s] of oaks and hickories varied by small prairies, grassy lawns and clear lakes"[14]	1,270,426	908 sq mi (2,352 km2)
Oceana County	127	Hart	1831	From part of Mackinac County.	Borders Lake Michigan, the freshwater "ocean."	26,981	1,307 sq mi (3,385 km2)
Ogemaw County	129	West Branch	1840	From unorganized territory. Annexed to Iosco County in 1867 and reinstated in 1873.	The Ojibwe word ogimaa, meaning "chief" or "leader"	20,990	575 sq mi (1,489 km2)
Ontonagon County	131	Ontonagon	1843 (boundaries declared) 1848 (organized)	From parts of Chippewa County and Mackinac County.	Named for the Ontonagon River. The Ojibwa word onagon means "dish" or "bowl."	5,906	3,741 sq mi (9,689 km2)
Osceola County	133	Reed City	1840	From part of Mackinac County. Was named Unwattin County until 1843.	Osceola (1804-1838), Seminole chief	23,330	573 sq mi (1,484 km2)
Oscoda County	135	Mio	1840	From part of Mackinac County and unorganized territory.	Schoolcraft pseudo-Native American name	8,545	572 sq mi (1,481 km2)
Otsego County	137	Gaylord	1840	From part of Mackinac County. Was named Okkudo County until 1843.	Named for Otsego County, New York	25,747	526 sq mi (1,362 km2)
Ottawa County	139	Grand Haven	1831	From part of Mackinac County and unorganized territory.	Named for the Native American Ottawa people.	303,372	1,632 sq mi (4,227 km2)
Presque Isle County	141	Rogers City	1840	From part of Mackinac County.	A derivation of the French phrase for "peninsula", literally "almost an island."	13,285	2,573 sq mi (6,664 km2)
Roscommon County	143	Roscommon	1840	From part of Mackinac County and unorganized territory. Was named Mikenauk County until 1843.	County Roscommon, Ireland	23,863	580 sq mi (1,502 km2)
Saginaw County	145	Saginaw	1822	From part of Oakland County.	A Native American term, perhaps a reference to the Saginaw River and Saginaw Bay, Ojibwe for "at the outlet" [15]	187,782	816 sq mi (2,113 km2)
St. Clair County	147	Port Huron	1820	From part of Macomb County.	Named for either Arthur St. Clair, first governor of the Northwest Territory, or Saint Clair on whose feast day Lake St. Clair was discovered	159,874	837 sq mi (2,168 km2)
St. Joseph County	149	Centreville	1829	From unorganized territory.	The St. Joseph River, which flows through the county.[16]	60,878	521 sq mi (1,349 km2)
Sanilac County	151	Sandusky	1822	From part of St. Clair County.	Sanilac, a Wyandotte chief	40,368	1,590 sq mi (4,118 km2)
Schoolcraft County	153	Manistique	1843	From parts of Chippewa County and Mackinac County.	Henry Rowe Schoolcraft, (1793-1864): American geographer and Superintendent of Indian Affairs in Michigan	8,149	1,884 sq mi (4,880 km2)
Shiawassee County	155	Corunna	1822	From parts of Oakland County and St. Clair County.	Named for the Shiawassee River, and means 'river that twists about.[17]	68,025	541 sq mi (1,401 km2)
Tuscola County	157	Caro	1840	From part of Sanilac County.	Schoolcraft pseudo-Native American name	52,826	914 sq mi (2,367 km2)
Van Buren County	159	Paw Paw	1829	From unorganized territory.	Martin Van Buren (1782-1862): Secretary of State in the Jackson Administration, later Vice President and eighth President of the United States	75,798	1,090 sq mi (2,823 km2)
Washtenaw County	161	Ann Arbor	1822 (boundaries declared) 1826 (organised)	From parts of Oakland County and Wayne County	From the Native American name for the Grand River, O-wash-ta-nong ("faraway water"),[18] whose headwaters were within the county's bounds.	365,536	723 sq mi (1,873 km2)
Wayne County	163	Detroit	1815	All lands within Michigan Territory that had been ceded by Native Americans through the 1807 Treaty of Detroit.	"Mad" Anthony Wayne, (1745-1796): United States Army general and statesman	1,751,169	672 sq mi (1,740 km2)
Wexford County	165	Cadillac	1840	From part of Mackinac County. Was named Kautawaubet County until 1843.	County Wexford, Ireland	34,122	576 sq mi (1,492 km2)

This listing includes only counties or county precursors created by the Territory of Michigan or the State of Michigan. It excludes counties that existed in the Territory of Michigan or the modern boundaries of the State of Michigan but were created by any other entity (another state, a territorial government, the federal government, etc.) before the creation of the Territory of Michigan.^[19]

1. Brown County, formed on December 3, 1818, from unorganized territory when Michigan Territory was expanded to include area west of Lake Michigan upon formation of the state of Illinois. Transferred to Wisconsin Territory on July 3, 1836, and continues as Brown County, Wisconsin.
2. Crawford County, formed on December 3, 1818, from unorganized territory when Michigan Territory was expanded to include area west of Lake Michigan upon formation of the state of Illinois. Transferred to Wisconsin Territory on July 3, 1836, and continues as Crawford County, Wisconsin.
3. Des Moines County, formed on October 1, 1834, from unorganized territory. Transferred to Wisconsin Territory on July 3, 1836, and continues as Des Moines County, Iowa.
4. Detroit District, formed on July 3, 1805, as a county precursor by Territorial Governor Lewis Cass to carry out the Territory's judicial and administrative functions. Superseded by counties on October 2, 1818, as proclaimed by William Woodbridge, Secretary of Michigan Territory.
5. Dubuque County, formed on October 1, 1834, from unorganized territory. Transferred to Wisconsin Territory on July 3, 1836, and continues as Dubuque County, Iowa.
6. Erie District, formed on July 3, 1805, as a county precursor by Territorial Governor William Hull to carry out the Territory's judicial and administrative functions. Included parts of modern-day Indiana and the Toledo Strip. Although the Erie District was officially superseded by counties by proclamation of Michigan Territorial Secretary William Woodbridge on October 2, 1818, the area of the district had actually been lost to the State of Indiana when it was created on December 11, 1816.
7. Huron District formed on July 3, 1805, as a county precursor by Territorial Governor William Hull to carry out the Territory's judicial and administrative functions. Superseded by counties on October 2, 1818, as proclaimed by William Woodbridge, Secretary of Michigan Territory.
8. Iowa County, formed on January 1, 1830, from part of Crawford County. Transferred to Wisconsin Territory on July 3, 1836, and continues as Iowa County, Wisconsin.
9. Isle Royale County, formed on March 4, 1875, from part of Keweenaw County. County became officially unorganized on March 13, 1885, and was attached to Houghton County, for judicial and administrative purposes. Michigan Legislature officially dissolved Isle Royale County and returned it to Keweenaw County on April 9, 1897.
10. Keskkauko County, formed on April 1, 1840, from part of Mackinac County. Renamed Charlevoix County, on March 8, 1843. Annexed to Emmet County, on January 29, 1853, and eliminated as a county. Reformed as Charlevoix County from Emmet, Antrim, and Otsego, Counties on April 2, 1869, albeit with boundaries that differed somewhat from the 1840–1853 iteration of Keskkauko–Charlevoix County.
11. Manitou County, formed on February 12, 1855, from parts of Emmet County and Leelanau County. On March 16, 1861, Manitou County was attached to Mackinac County for meetings of the District Court, but all other County functions were unchanged. Four years later, on March 10, 1865, the District Court attachment was changed to Leelanau County instead of Mackinac. Another four years later, on March 24, 1869, the District Court attachment to Leelanau County was terminated. The entire Manitou County government was dissolved on April 4, 1895, and the county was abolished. It was absorbed by Charlevoix County, and Leelanau County.
12. Michilimackinac District formed on July 3, 1805, as a county precursor by Territorial Governor William Hull to carry out the Territory's judicial and administrative functions. Incorporated into Wayne County, on October 18, 1816.
13. Milwaukee County, formed on September 6, 1834, from part of Brown County. Transferred to Wisconsin Territory on July 3, 1836, and continues as Milwaukee County, Wisconsin.
14. Omeena County, formed on April 1, 1840, from part of Mackinac County. Annexed to Grand Traverse County, on February 3, 1853.
15. Wyandot County, formed on April 1, 1840, from part of Mackinac County. Annexed to Cheboygan County, on January 29, 1853.
16. Washington County, formed in 1867 from Marquette County, but declared unconstitutional.

• Cabinet counties
• List of former United States counties
• List of county subdivisions in Michigan

• Armitage, B. Phyllis. (October–December 1943). "A Study of Michigan's Place-Names". Michigan History magazine. 27: 626–637.
• County histories published in Michigan History Magazine. Some back issues that include these histories are still available for purchase.
• Jenks, William L. (1912). "History and Meaning of the County Names of Michigan". Collections and Researches of the Michigan Pioneer and Historical Society. 38: 439–478.
• Michigan Manual (the "Red Book") published biennially by the Legislative Service Bureau under the direction of the. Legislative Council, State of Michigan.
• Powers, Perry F.; Cutler, H.G., assisting (1912). A History of Northern Michigan and its People.{{cite book}}: CS1 maint: multiple names: authors list (link) at Google books
• Pioneer Society of the State of Michigan (1900) [1874–1876]. Pioneer Collections: Report of the Pioneer Society of the State of Michigan. Vol. I (2nd ed.). Lansing, Michigan: Robert Smith Printing Co. pp. 94–520.
• Romig, Walter; Massie, Larry B (Designer) (1986). Michigan Place Names: The History of the Founding and the Naming of More Than Five Thousand Past and Present Michigan Communities. Detroit, Michigan: Wayne State University Press. ISBN 978-0-8143-1838-6.
• Vogel, Virgil J. (1986). Indian Names in Michigan. Ann Arbor, Michigan: University of Michigan Press. pp. 244, 8 B&W photographs & 3 maps. ISBN 978-0-472-06365-9.

• Bibliography by county and region, including origin of county names, Clarke Historical Library, Central Michigan University
• Freelang Ojibwe Dictionary
• History of County Creation Archived June 25, 2004, at the Wayback Machine
• Michigan County History and atlases, digitized database, including Powers, Perry F., assisted by H.G. Cutler, A History of Northern Michigan and its People (1912)
• Michigan County names per the Michigan government. Archived July 28, 2009, at the Wayback Machine
• Table of dates counties laid out and organized
• History of the name Sheboygan
• American FactFinder for the 2010 Census