New Hampshire
Postal abbreviation NH. 281 ZIP codes across 10 counties.
| Population | 1,394,868 |
|---|---|
| Postal abbreviation | NH |
| ZIP codes | 281 ZIP codes → |
| Area codes | 603 |
| Time zone | Eastern |
| Counties | 10 |
Largest cities by population
Manchester · 115,643Nashua · 91,294Concord · 44,375Dover · 33,364Rochester · 33,144Keene · 22,939Portsmouth · 22,545Derry · 21,339Laconia · 17,085Lebanon · 14,999
Largest counties by population
Hillsborough County · 426,378Rockingham County · 319,082Merrimack County · 155,967Strafford County · 132,575Grafton County · 92,120Cheshire County · 77,297Belknap County · 64,659Carroll County · 51,804Sullivan County · 43,715Coos County · 31,271
Counties in New Hampshire
Belknap CountyCarroll CountyCheshire CountyCoos CountyGrafton CountyHillsborough CountyMerrimack CountyRockingham CountyStrafford CountySullivan County
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.