Founded in 1769, Cheshire County is one of 10 counties in the state of New Hampshire. Historically, Cheshire County was one of five original counties. The city of Keene is the county seat. With FIPS code of 5, Cheshire County has a population of 76,458 and area of 708 square miles (1,834 km2).
List of all cities in Cheshire County, NH alphabetically
| City/Town | Postal Code | Area Code |
| Alstead, NH | 03602 | 603 |
| Alstead Center, NH | 03602 | 603 |
| Ashuelot, NH | 03441 | 603 |
| Chesterfield, NH | 03443 | 603 |
| Drewsville, NH | 03604 | 603 |
| Dublin, NH | 03444 | 603 |
| East Alstead, NH | 03602 | 603 |
| East Sullivan, NH | 03445 | 603 |
| East Swanzey, NH | 03446 | 603 |
| Fitzwilliam, NH | 03447 | 603 |
| Gilsum, NH | 03448 | 603 |
| Harrisville, NH | 03450 | 603 |
| Hinsdale, NH | 03451 | 603 |
| Jaffrey, NH | 03452 | 603 |
| Keene, NH | 03431 | 603 |
| 03435 | 603 | |
| Keene State College, NH | 03435 | 603 |
| Langdon, NH | 03602 | 603 |
| Marlborough, NH | 03455 | 603 |
| Marlow, NH | 03456 | 603 |
| Munsonville, NH | 03457 | 603 |
| Nelson, NH | 03445 | 603 |
| Nelson, NH | 03457 | 603 |
| No Walpole, NH | 03609 | 603 |
| North Swanzey, NH | 03431 | 603 |
| North Walpole, NH | 03609 | 603 |
| Richmond, NH | 03470 | 603 |
| Rindge, NH | 03461 | 603 |
| Roxbury, NH | 03431 | 603 |
| Spofford, NH | 03462 | 603 |
| Stoddard, NH | 03457 | 603 |
| 03464 | 603 | |
| Sullivan, NH | 03445 | 603 |
| Surry, NH | 03431 | 603 |
| Swanzey, NH | 03446 | 603 |
| Swanzey Center, NH | 03446 | 603 |
| Troy, NH | 03465 | 603 |
| Walpole, NH | 03608 | 603 |
| West Chesterfield, NH | 03466 | 603 |
| West Swanzey, NH | 03469 | 603 |
| Westmoreland, NH | 03467 | 603 |
| Winchester, NH | 03470 | 603 |