Merrimack County, New Hampshire
Merrimack County, New Hampshire, has 158,078 residents (July 2025 estimate). Its county seat is Concord. It uses Eastern Time and covers 933 sq mi (2,416 km²) of land.
- Resident population, July 2025
- 158,078
- Land area
- 933 sq mi (2,416 km²)
- County seat or government
- Concord
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $97,004 ± $2,796
- Median home value
- $367,600 ± $6,350
- Median rent, with utilities
- $1,360 ± $37
- Homes lived in by their owners
- 73.5% ± 1.1 points
- County type
- County
- Metro or micro area
- Concord, NH micro areaCentral county
- Water area
- 22.1 sq mi (57.3 km²)
- State
- New Hampshire
- County code (FIPS)
- 33013
- Coordinates (central point)
- 43.299579, -71.680041
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Merrimack County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Eastern TimeAmerica/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 0310435,237 people
- 0330133,995 people
- 0330316,571 people
- 0310615,032 people
- 0327512,205 people
- 032769,015 people
- 032358,903 people
- 033048,335 people
- 032207,393 people
- 032426,197 people
- 032296,046 people
- 033075,724 people
All 31
- 032344,939 people
- 032614,688 people
- 032574,484 people
- 032634,105 people
- 030463,097 people
- 032783,079 people
- 032582,721 people
- 032242,392 people
- 032212,200 people
- 032162,046 people
- 032552,015 people
- 032871,487 people
- 032681,468 people
- 032301,451 people
- 03260976 people
- 03243952 people
- 03273361 people
- 03233156 people
- 0323189 people
31 ZIP Code areas overlap Merrimack County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Towns in Merrimack County, largest first
- Town of Hooksett15,057 people
- Town of Bow8,335 people
- Town of Pembroke7,438 people
- Town of Henniker6,197 people
- Town of Hopkinton6,037 people
- Town of Loudon5,692 people
- Town of Northfield4,971 people
- Town of Epsom4,939 people
- Town of Allenstown4,743 people
- Town of New London4,433 people
- Town of Pittsfield4,105 people
- Town of Boscawen4,044 people
All 25
- Town of Dunbarton3,097 people
- Town of Warner2,959 people
- Town of Chichester2,745 people
- Town of Canterbury2,353 people
- Town of Sutton2,239 people
- Town of Webster2,227 people
- Town of Andover2,135 people
- Town of Newbury2,027 people
- Town of Salisbury1,609 people
- Town of Bradford1,565 people
- Town of Wilmot1,487 people
- Town of Danbury1,451 people
- Town of Hill908 people
People counts are American Community Survey 2020–2024 5-year estimates. All towns in New Hampshire, by county
School districts in Merrimack County, largest first
- Concord School District38,404 people
- Merrimack Valley School District19,543 people
- Kearsarge Regional School District15,832 people
- John Stark Regional School District15,367 people
- Hooksett School District15,057 people
- Winnisquam Regional School District12,087 people
- Newfound Area School District11,775 people
- Shaker Regional School District9,745 people
- Franklin School District8,799 people
- Bow School District8,335 people
- Pembroke School District7,438 people
- Henniker School District6,197 people
All 20
- Hopkinton School District6,037 people
- Epsom School District4,939 people
- Allenstown School District4,743 people
- Pittsfield School District4,105 people
- Dunbarton School District3,097 people
- Chichester School District2,745 people
- Andover School District2,135 people
- Hill School District908 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Concord, New Hampshire (city)44,375 people
- Franklin, New Hampshire (city)8,799 people
- South Hooksett, New Hampshire (CDP)5,902 people
- Hooksett, New Hampshire (CDP)5,876 people
- Suncook, New Hampshire (CDP)5,432 people
- Tilton Northfield, New Hampshire (CDP)3,101 people
- Henniker, New Hampshire (CDP)2,993 people
- Pittsfield, New Hampshire (CDP)1,744 people
- Contoocook, New Hampshire (CDP)1,376 people
- New London, New Hampshire (CDP)1,278 people
- Loudon, New Hampshire (CDP)614 people
- Bradford, New Hampshire (CDP)404 people
All 14
- Warner, New Hampshire (CDP)341 people
- Blodgett Landing, New Hampshire (CDP)100 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Belknap County, New Hampshire20 mi northeast
- Hillsborough County, New Hampshire27 mi south
- Sullivan County, New Hampshire28 mi west
- Strafford County, New Hampshire32 mi east
- Rockingham County, New Hampshire36 mi southeast
- Grafton County, New Hampshire44 mi north
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