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County ProfileNH

Hillsborough County

Population: 422,937 · 38 ZIP codes

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
422,937
People
Median age
41
Housing
Total households
168,740
Income
Median household income
$103,545
Housing
Total housing units
177,734
Employment
Employment rate
68.1%
Education
Bachelor’s degree or higher
41.5%
Healthcare
Insured population
94.5%
County details
Local time 03:22:05(ET)
NameHillsborough
Total ZIP codes38total
ZIP codes (by type)
34 Standard3 PO Box1 Unique
Area code603
TimezoneEastern Time (ET)
Coordinates42.9115317, -71.7230554
Land area876.5 sq miles(2,270.2 km²)

Map of Hillsborough county, New Hampshire with ZIP codes

Map of Hillsborough County, New Hampshire and ZIP codes

Cities and Communities in Hillsborough County

Compare the largest cities in Hillsborough County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.

CityPopulation
Median incomeHousehold
ZIP codes
Manchester115,644$81,0078ZIPs
Nashua91,322$96,3265ZIPs
Milford9,212$78,6841ZIPs
Hudson7,534$95,8421ZIPs
Goffstown3,366$132,9971ZIPs
Peterborough3,090$85,8331ZIPs
Hillsborough2,156$49,2051ZIPs
Antrim1,395$72,7381ZIPs
Wilton1,324$84,3421ZIPs
Greenville1,074$53,8071ZIPs
Amherst697$154,2861ZIPs
Bennington338$74,1251ZIPs
New Boston326$250,0011ZIPs
Hancock213$55,2781ZIPs
Francestown201$138,4381ZIPs
Bedford1ZIPs
Brookline1ZIPs
Greenfield1ZIPs
Hollis1ZIPs
Litchfield1ZIPs
Lyndeborough1ZIPs
Merrimack1ZIPs
Mont Vernon1ZIPs
New Ipswich1ZIPs
Pelham1ZIPs
Temple1ZIPs
Weare1ZIPs

Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP Codes in Hillsborough County

Review the most populated postal areas across Hillsborough County. Use the ranking below to compare resident density and demographic scales between the county's major zones.

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS