Category:Historic districts in New Hampshire by county Subcategories This category has the following 9 subcategories, out of 9 total. B Historic districts in Belknap County, New Hampshire (5 P)C Historic districts in Carroll County, New Hampshire (5 P) Historic districts in Cheshire County, New Hampshire (10 P) Historic districts in Coös County, New Hampshire (1 P)G Historic districts in Grafton County, New Hampshire (12 P)H Historic districts in Hillsborough County, New Hampshire (18 P)M Historic districts in Merrimack County, New Hampshire (5 P)R Historic districts in Rockingham County, New Hampshire (13 P)S Historic districts in Sullivan County, New Hampshire (4 P)
