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Newmarket CDP, NH
ZIP 03857 — People & Community
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
Middle ClassLow Snow AreaRemote Work Hub
Demographics, education attainment, health access, and community lifestyle
Population & Demographics in 03857
03857 has a population of 9,431 with a median age of 39.3 yrs (49.0% male).
Health & Community Indicators in 03857
Historical Trends in 03857 (2020–Present)
Since 2020, population grew 2.9%, median income rose 4.4% (inflation-adjusted), home values increased 6.5%.
People & Community key statistics
| Population | |
|---|---|
| Population | 9,431 |
| Median age | 39.3 |
| Poverty rate | 4.3% |
| Demographics | |
|---|---|
| White | 92.5% |
| Hispanic | 1.8% |
| Black | 0.7% |
| Asian | 1.8% |
| Foreign-born | 47.0% |