| Zip Code | Area Code | City | County | Centroid | Other Information |
| 03110 | 603 | Bedford | Hillsborough | (42.9442, -71.5194) | Observes Daylight Savings Time |
| 03106 | 603 | Hooksett | Merrimack | (43.0593, -71.4493) | Observes Daylight Savings Time |
| 03032 | 603 | Auburn | Rockingham | (42.9951, -71.3491) | Observes Daylight Savings Time |
| 03045 | 603 | Goffstown | Hillsborough | (43.0592, -71.5794) | Observes Daylight Savings Time |
| 03054 | 603 | Merrimack | Hillsborough | (42.8631, -71.5151) | Observes Daylight Savings Time |
| 03034 | 603 | Candia | Rockingham | (43.0518, -71.3039) | Observes Daylight Savings Time |
| 03053 | 603 | Londonderry | Rockingham | (42.8669, -71.3777) | Observes Daylight Savings Time |
| 03052 | 603 | Litchfield | Hillsborough | (42.8442, -71.4563) | Observes Daylight Savings Time |
| 03046 | 603 | Dunbarton | Merrimack | (43.1025, -71.6169) | Observes Daylight Savings Time |
| 03304 | 603 | Bow | Merrimack | (43.1376, -71.5443) | Observes Daylight Savings Time |
| 03041 | 603 | East Derry | Rockingham | (42.8926, -71.2981) | Observes Daylight Savings Time |
| 03038 | 603 | Derry | Rockingham | (42.8887, -71.2995) | Observes Daylight Savings Time |
| 03031 | 603 | Amherst | Hillsborough | (42.8615, -71.6083) | Observes Daylight Savings Time |
| 03040 | 603 | East Candia | Rockingham | (43.045, -71.2507) | Observes Daylight Savings Time |
| 03036 | 603 | Chester | Rockingham | (42.9662, -71.2403) | Observes Daylight Savings Time |
| 03070 | 603 | New Boston | Hillsborough | (42.9773, -71.6973) | Observes Daylight Savings Time |
| 03057 | 603 | Mont Vernon | Hillsborough | (42.898, -71.6783) | Observes Daylight Savings Time |
| 03275 | 603 | Suncook | Merrimack | (43.1732, -71.4037) | Observes Daylight Savings Time |
| 03077 | 603 | Raymond | Rockingham | (43.0348, -71.1915) | Observes Daylight Savings Time |
| 03281 | 603 | Weare | Hillsborough | (43.0836, -71.7263) | Observes Daylight Savings Time |
| 03873 | 603 | Sandown | Rockingham | (42.93, -71.1866) | Observes Daylight Savings Time |
| 03055 | 603 | Milford | Hillsborough | (42.829, -71.658) | Observes Daylight Savings Time |
| 03037 | 603 | Deerfield | Rockingham | (43.1412, -71.2452) | Observes Daylight Savings Time |
| 03087 | 603 | Windham | Rockingham | (42.8043, -71.303) | Observes Daylight Savings Time |
| 03051 | 603 | Hudson | Hillsborough | (42.7713, -71.4205) | Observes Daylight Savings Time |