Merrimack is a town in Hillsborough County, New Hampshire, home to about 28,164 people across 33 square miles. Its ZIP code is 03054.
Homes sold for a median of $264 per square foot in the three months ending August 2026, a seller’s market.
Each card is that ZIP code’s whole market, including any part outside Merrimack. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Merrimack’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Boston Logan International Airport (BOS)43 miles away |
|---|---|
| Closer regional airport | Manchester-Boston Regional Airport (MHT)6 miles away |
| Nearest city of 250,000+ | Boston, MA45 miles away |
| Nearest city of 1 million+ | New York, NY197 miles away |
Straight-line distances from the center of Merrimack; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Merrimack had 26,632 residents in the 2020 census, up 6% since 2000.
It’s the 8th largest of 242 towns in New Hampshire by population.
Hillsborough County grew from 112,640 residents in 1900 to 422,937 in 2020.
Hillsborough County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 84°F in summer, and winter lows average 14°F. About 48.2 inches of rain and melted snow fall in a typical year, with about 53 inches of snow.
Source: NOAA 1991–2020 climate normals, Nashua 2 Nnw, NH weather station (6 miles away).
186,868 jobs at 11,028 businesses in Hillsborough County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
162 doctors and other health care providers list an office in Merrimack.
Nearest hospitals
Providers with an office here
| Primary care doctors | 22 |
|---|---|
| Specialist doctors | 18 |
| Dentists | 16 |
| Nurse practitioners and physician assistants | 34 |
| Mental health providers | 20 |
| Physical and occupational therapists | 38 |
| Optometrists | 6 |
| Chiropractors | 8 |
| Pharmacies | 5 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (23 nearby)
Grocery stores (3 nearby)
Pharmacies (2 nearby)
Libraries (2 nearby)
Museums
Theaters and performance venues
Counts are within about 4 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1673.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Merrimack School District, Gate City Charter School For the Arts. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| James Mastricola Elementary SchoolMerrimack | Pre-K–4 | 375 | Public | 0.7 mi |
| Reeds Ferry SchoolMerrimack | Pre-K–4 | 504 | Public | 2.0 mi |
| Thorntons Ferry SchoolMerrimack | Pre-K–4 | 504 | Public | 3.6 mi |
| Gate City Charter School for the ArtsMerrimack | K–8 | 160 | Charter | 4.5 mi |
| James Mastricola Upper Elementary SchoolMerrimack | 5–6 | 533 | Public | 0.7 mi |
| Merrimack Middle SchoolMerrimack | 7–8 | 480 | Public | 1.5 mi |
| Merrimack High SchoolMerrimack | 9–12 | 1,057 | Public | 0.8 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Kindercare Learning CenterMerrimack | Pre-K–K | 12 | Nonsectarian | 2.0 mi |
| South Merrimack Christian AcademyMerrimack | Pre-K–12 | 238 | Baptist | 4.8 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.