03857   Zip Code Newmarket Rockingham NH United States

City Newmarket
County Rockingham
State New Hampshire
Latitude 43.0691
Longitude -70.95164
Population 9,463
Density 751.55 people per square mile
Time Zone America/New York
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $100,845
Median individual: $55,381

Race

Mode: 91.1% White

Gender

 50.6% female 

Rent

  $1671 / month  

Median house value: $455,608.0

Age

Median: 41.2 years old

Education

With at least college degree: 49.8%
With STEM degree: 47.6%

Marital Status

 52.1% married 

Never married: 33.7%

Labor Force Participation

 75.4% working 

Unemployed: 1.0%

Average Family Size

 2.73 people 

Commute Time

 28.2 minutes 

Health Care

 3.9% uninsured 

Poverty

 4.6%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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