Cities and Towns in Strafford County, New Hampshire
Founded in 1769, Strafford County is one of 10 counties in the state of New Hampshire. Historically, Strafford County was one of five original counties. The city of Dover is the county seat. With FIPS code of 17, Strafford County has a population of 130,889 and area of 369 square miles (956 km²).
List of all cities in Strafford County, NH alphabetically
| City/Town | Postal Code | Area Code |
| Barrington, NH | 03825 | 603 |
| Center Strafford, NH | 03815 | 603 |
| CTR Strafford, NH | 03815 | 603 |
| Dover, NH | 03820 | 603 |
| 03821 | 603 | |
| 03822 | 603 | |
| Durham, NH | 03824 | 603 |
| 03861 | 603 | |
| East Rochester, NH | 03868 | 603 |
| Farmington, NH | 03835 | 603 |
| Gonic, NH | 03839 | 603 |
| Lee, NH | 03824 | 603 |
| 03861 | 603 | |
| Liberty Mutual Insurance, NH | 03822 | 603 |
| Madbury, NH | 03823 | 603 |
| Milton, NH | 03851 | 603 |
| 03852 | 603 | |
| Milton Mills, NH | 03852 | 603 |
| New Durham, NH | 03855 | 603 |
| Newington, NH | 03805 | 603 |
| Portsmouth, NH | 03805 | 603 |
| Rochester, NH | 03839 | 603 |
| 03866 | 603 | |
| 03867 | 603 | |
| 03868 | 603 | |
| Rollinsford, NH | 03869 | 603 |
| Somersworth, NH | 03878 | 603 |
| Strafford, NH | 03884 | 603 |
