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Merrimack County
countyMerrimack County, New Hampshire
Overview
- Classification
- County
- FIPS Code
- 33013
- Country
- United States
- County
- County
Geography
- Region
- Merrimack Valley
- Elevation
- 2,937 ft
- Total Area
- 956 sq mi
- Land Area
- 934 sq mi
- Water Area
- 22 sq mi
- Latitude
- 43.3
- Longitude
- -71.68
- Climate
- The climate in Merrimack County is generally mild and temperate. Summers are warm and humid, with average high temperatures ranging from the mid-70s to the upper 80s (Fahrenheit). Winters are cold, with temperatures occasionally dipping below 0°F. Snowfall is common during winter months, averaging around 40 inches annually. Spring and fall offer moderate temperatures with occasional rainfall. The region typically enjoys around 220 days of sunshine throughout the year.
- Notable Features
- Mount Kearsarge · Merrimack River
- Neighboring Areas
- Belknap County (northeast) · Strafford County (east) · Rockingham County (southeast) · Hillsborough County (south) · Sullivan County (west) · Grafton County (northwest)
Demographics
- Population (2020)
- 153,808
- Est. Population (2024)
- 157,869
- Median Age
- 42.6
- Median Income
- $93,944
- Poverty Rate
- 7.09%
- Family Households
- 66.7%
- Owner-Occupied
- 73.5%
- Racial & Ethnic Composition
- In 2023, the racial makeup of Merrimack County was approximately 90.6% White (Non-Hispanic), 2.45% Two Races Excluding Other, & Three or More Races (Non-Hispanic), 1.62% Asian (Non-Hispanic), 1.49% Black or African American (Non-Hispanic), and 0.994% Two Races Including Other (Hispanic).
Governance
- Government Type
- County Commission
- Governing Body
- Board of Commissioners
- Body Size
- 3 members
- Municipal Services
- Corrections · County Attorney · Human Resources · Human Services · Nursing Home · Deeds
U.S. Congress
Economy
- Unemployment Rate
- 2.6%
- Economic Profile
- Major engine of economic growth and opportunity
- Employment Sectors
- Health Care & Social Assistance · Retail Trade · Manufacturing
- Major Employers
- BAE Systems · GE Aviation · DEKA
Education
- Schools
- 54
- Students
- 16,539
- School Districts
- Allenstown · Andover · Bow · Chichester · Concord · Franklin · Henniker · Hooksett · Hopkinton · Kearsarge Regional · Merrimack Valley · Pembroke · Pittsfield
- Colleges & Universities
- Southern New Hampshire University · New England College · NHTI-Concord's Community College
Infrastructure
- Transportation
- Interstate 93 · Interstate 89 · U.S. Route 3 · New Hampshire Route 9 · New Hampshire Route 101
- Utilities
- Municipal water
- Major Facilities
- Merrimack County Courthouse
Recreation
- Outdoor Access
- Yes
- Major Recreation Areas
- Bear Brook State Park · Wasserman Park
- Parks & Trails
- Wasserman Park · Horse Hill Nature Preserve
History
- Founded
- 1823
- Named After
- Merrimack River
- Historical Significance
- The county is named for the Merrimack River and is the third most populous county in New Hampshire.
- Key Events
- Organized in 1823 from parts of Hillsborough and Rockingham counties