03857 ZIP Code
Newmarket, New hampshire
December 13, 2025
| ZIP Code: | 03857 |
| City/Town: | Newmarket |
| County: | Rockingham |
| State: | New hampshire |
| ZIP Type: | Standard |
| Population: | 9,400 |
| Median Household Income: | $98,002 |
| Per Capita Income: | $51,927 |
| Total Housing Units: | 4,350 |
| Median Home Value: | $369,900 |
| Land Area: | 12.6 sq miles
32.6 sq km |
| Water Area: | 1.6 sq miles
4.1 sq km |
| Coordinates: | 43.0709, -70.9469 |
Population Information (03857 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total Population: | 9,400 | -- | -- |
| Male: | 4,921 | 52.4% | 49.6% |
| Female: | 4,479 | 47.6% | 50.4% |
| Median Age: | 38.5 yrs | -- | 38.5 yrs |
| Under 5 years: | 444 | 4.7% | 5.7% |
| 5 to 9 years: | 407 | 4.3% | 6.0% |
| 10 to 14 years: | 509 | 5.4% | 6.5% |
| 15 to 19 years: | 324 | 3.4% | 6.6% |
| 20 to 24 years: | 718 | 7.6% | 6.7% |
| 25 to 34 years: | 1,822 | 19.4% | 13.7% |
| 35 to 44 years: | 1,346 | 14.3% | 12.9% |
| 45 to 54 years: | 1,198 | 12.7% | 12.4% |
| 55 to 59 years: | 343 | 3.6% | 6.5% |
| 60 to 64 years: | 765 | 8.1% | 6.4% |
| 65 to 74 years: | 959 | 10.2% | 9.7% |
| 75 to 84 years: | 495 | 5.3% | 4.8% |
| 85 years and over: | 70 | 0.7% | 2.0% |
Housing Information (03857 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Median home value: | $369,900 | -- | $281,900 |
| Median rooms: | 5.3 | -- | 5.5 |
| Median rent: | $1,573 / mo. | -- | $1,268 / mo. |
| Total housing units: | 4,350 | -- | -- |
| Occupied housing units: | 4,203 | 96.6% | 38.0% |
| Vacant housing units: | 147 | 3.4% | 4.6% |
| Housing tenure: | -- | -- | -- |
| Owner-occupied: | 2,282 | 54.3% | 64.8% |
| Renter-occupied: | 1,921 | 45.7% | 35.2% |
Educational Attainment (03857 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Population 25 years and over: | 6,998 | -- | -- |
| Less than 9th grade: | 13 | 0.2% | 4.7% |
| 9th to 12th grade, no diploma: | 101 | 1.4% | 6.1% |
| High school graduate: | 1,127 | 16.1% | 26.4% |
| Some college, no degree: | 1,419 | 20.3% | 19.7% |
| Associate degree: | 868 | 12.4% | 8.7% |
| Bachelor's degree: | 2,278 | 32.6% | 20.9% |
| Graduate or professional degree: | 1,192 | 17.0% | 13.7% |
| Percent high school graduate or higher: | -- | 98.4% | 89.1% |
| Percent bachelor's degree or higher: | -- | 49.6% | 34.3% |
Income Information (03857 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median household income: | $98,002 / yr. | $75,149 / yr. |
| Mean household income: | $111,604 / yr. | $105,833 / yr. |
| Median family income: | $111,025 / yr. | $92,646 / yr. |
| Per capita income: | $51,927 / yr. | $41,261 / yr. |
Employment (03857 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| In labor force: | 5,954 | -- | 63.5% |
| Employed: | 5,779 | 98.5% | 96.4% |
| Unemployed: | 88 | 1.5% | 5.3% |
| Not in labor force: | 1,983 | -- | -- |
| Class of Worker: | -- | -- | -- |
| Private wage and salary: | 4,699 | 81.3% | 79.7% |
| Government workers: | 760 | 13.2% | 14.2% |
| Self-employed: | 320 | 5.5% | 5.9% |
| Unpaid family workers: | 0 | 0.0% | 0.1% |
Race & Ethnicity (03857 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Race (one race): | -- | -- | -- |
| White: | 8,754 | 93.1% | 61.6% |
| Black or African American: | 90 | 1.0% | 12.4% |
| American Indian/Alaska Native: | 0 | 0.0% | 1.1% |
| Asian: | 130 | 1.4% | 6.0% |
| Native Hawaiian/Pacific Islander: | 0 | 0.0% | 0.2% |
| Some other race: | 63 | 0.7% | 8.4% |
| Two or more races: | 363 | 3.9% | 10.2% |
| Hispanic or Latino (any race): | 123 | 1.3% | 18.7% |
| Mexican: | 149 | 1.6% | 11.2% |
| Puerto Rican: | 58 | 0.6% | 1.8% |
| Cuban: | 0 | 0.0% | 0.7% |
| Other Hispanic or Latino: | 0 | 0.0% | 5.0% |
| Not Hispanic or Latino: | 91 | 1.0% | 81.1% |
Income Distribution (03857 zip code)
| Household Income | Households | Percent% | US AvgUS |
|---|---|---|---|
| Less than $10,000: | 95 | 2.3% | 4.9% |
| $10,000 to $14,999: | 0 | 0.0% | 3.8% |
| $15,000 to $24,999: | 234 | 5.6% | 7.0% |
| $25,000 to $34,999: | 219 | 5.2% | 7.4% |
| $35,000 to $49,999: | 361 | 8.6% | 10.7% |
| $50,000 to $74,999: | 643 | 15.3% | 16.1% |
| $75,000 to $99,999: | 655 | 15.6% | 12.8% |
| $100,000 to $149,999: | 994 | 23.6% | 17.1% |
| $150,000 to $199,999: | 584 | 13.9% | 8.8% |
| $200,000 or more: | 418 | 9.9% | 11.4% |
Commute to Work (03857 zip code)
| Commute Method | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Drove alone: | 4,441 | 76.8% | 67.8% |
| Carpooled: | 363 | 6.3% | 8.7% |
| Public transportation: | 60 | 1.0% | 4.2% |
| Walked: | 192 | 3.3% | 2.5% |
| Other means: | 9 | 0.2% | 0.9% |
| Worked from home: | 736 | 12.7% | 13.8% |
| Mean travel time to work: | 28.7 min | -- | 26.7 min |
Industry (03857 zip code)
| Industry Sector | Workers | Percent% | US AvgUS |
|---|---|---|---|
| Agriculture, forestry, fishing, mining: | 77 | 1.3% | 1.6% |
| Construction: | 187 | 3.2% | 6.9% |
| Manufacturing: | 723 | 12.5% | 10.0% |
| Wholesale trade: | 168 | 2.9% | 2.4% |
| Retail trade: | 563 | 9.7% | 11.0% |
| Transportation, warehousing, utilities: | 200 | 3.5% | 5.8% |
| Information: | 31 | 0.5% | 1.9% |
| Finance, insurance, real estate: | 398 | 6.9% | 6.7% |
| Professional, scientific, management: | 736 | 12.7% | 12.1% |
| Education, health care, social services: | 1,728 | 29.9% | 23.3% |
| Arts, entertainment, food services: | 616 | 10.7% | 9.0% |
| Other services: | 200 | 3.5% | 4.7% |
| Public administration: | 152 | 2.6% | 4.7% |
Poverty Status (03857 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Poverty Rate: | -- | 4.0% | 8.8% |
| All people below poverty level: | -- | -- | -- |
| Under 18 years: | -- | -- | 16.3% |
| 18 to 64 years: | -- | -- | 11.0% |
| 65 years and over: | -- | -- | 10.3% |
Health Insurance (03857 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| With health insurance: | 8,878 | 94.4% | 91.3% |
| Private health insurance: | 7,660 | 81.5% | 67.6% |
| Public health coverage: | 2,199 | 23.4% | 35.9% |
| Without health insurance: | 427 | 4.5% | 8.7% |
Benefits & Assistance (03857 zip code)
| Households with: | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Earnings: | 3,551 | 84.5% | 77.4% |
| Social Security income: | 1,140 | 27.1% | 31.0% |
| Retirement income: | 877 | 20.9% | 21.8% |
| Supplemental Security Income (SSI): | 121 | 2.9% | 4.5% |
| Cash public assistance income: | 43 | 1.0% | 1.8% |
| SNAP (food stamps) benefits: | 179 | 4.3% | 11.4% |
Housing Types (03857 zip code)
| Structure Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| 1-unit, detached: | 1,896 | 43.6% | 61.4% |
| 1-unit, attached: | 459 | 10.6% | 6.1% |
| 2 units: | 247 | 5.7% | 3.4% |
| 3 or 4 units: | 291 | 6.7% | 4.3% |
| 5 to 9 units: | 204 | 4.7% | 4.6% |
| 10 to 19 units: | 258 | 5.9% | 4.3% |
| 20 or more units: | 880 | 20.2% | 9.9% |
| Mobile home: | 115 | 2.6% | 5.8% |
| Boat, RV, van, etc.: | 0 | 0.0% | 0.1% |
Year Structure Built (03857 zip code)
| Year Built | Units | Percent% | US AvgUS |
|---|---|---|---|
| Built 2020 or later: | 9 | 0.2% | 0.6% |
| Built 2010 to 2019: | 178 | 4.1% | 8.2% |
| Built 2000 to 2009: | 544 | 12.5% | 13.5% |
| Built 1990 to 1999: | 615 | 14.1% | 13.2% |
| Built 1980 to 1989: | 1,147 | 26.4% | 13.2% |
| Built 1970 to 1979: | 539 | 12.4% | 14.6% |
| Built 1960 to 1969: | 158 | 3.6% | 10.2% |
| Built 1950 to 1959: | 283 | 6.5% | 9.9% |
| Built 1940 to 1949: | 35 | 0.8% | 4.6% |
| Built 1939 or earlier: | 842 | 19.4% | 12.0% |
Bedrooms (03857 zip code)
| Number of Bedrooms | Units | Percent% | US AvgUS |
|---|---|---|---|
| No bedroom (studio): | 27 | 0.6% | 2.4% |
| 1 bedroom: | 504 | 11.6% | 3.0% |
| 2 bedrooms: | 1,867 | 42.9% | 9.1% |
| 3 bedrooms: | 1,502 | 34.5% | 15.9% |
| 4 bedrooms: | 406 | 9.3% | 18.8% |
| 5 or more bedrooms: | 44 | 1.0% | 17.6% |
Heating Fuel (03857 zip code)
| Fuel Type | Units | Percent% | US AvgUS |
|---|---|---|---|
| Utility gas: | 250 | 5.9% | 47.1% |
| Bottled, tank, or LP gas: | 918 | 21.8% | 4.9% |
| Electricity: | 1,106 | 26.3% | 40.2% |
| Fuel oil, kerosene, etc.: | 1,753 | 41.7% | 4.2% |
| Coal or coke: | 0 | 0.0% | 0.1% |
| Wood: | 103 | 2.5% | 1.5% |
| Solar energy: | 7 | 0.2% | 0.1% |
| Other fuel: | 40 | 1.0% | 0.5% |
| No fuel used: | 26 | 0.6% | 0.2% |
Vehicles Available (03857 zip code)
| Vehicles | Households | Percent% | US AvgUS |
|---|---|---|---|
| No vehicle available: | 47 | 1.1% | 8.3% |
| 1 vehicle available: | 1,404 | 33.4% | 32.6% |
| 2 vehicles available: | 2,142 | 51.0% | 37.0% |
| 3 or more vehicles available: | 610 | 14.5% | 22.1% |
Home Value Distribution (03857 zip code)
| Value Range | Owner Units | Percent% | US AvgUS |
|---|---|---|---|
| Less than $50,000: | 5 | 0.2% | 5.7% |
| $50,000 to $99,999: | 21 | 0.9% | 7.8% |
| $100,000 to $149,999: | 16 | 0.7% | 9.2% |
| $150,000 to $199,999: | 110 | 4.8% | 10.8% |
| $200,000 to $299,999: | 368 | 16.1% | 19.9% |
| $300,000 to $499,999: | 1,355 | 59.4% | 24.1% |
| $500,000 to $999,999: | 407 | 17.8% | 17.0% |
| $1,000,000 or more: | 0 | 0.0% | 5.6% |
Housing Costs (03857 zip code)
| Value | US AvgUS | |
|---|---|---|
| Median owner costs (with mortgage): | $2,368 / mo. | $1,828 / mo. |
| Median owner costs (no mortgage): | $1,046 / mo. | $584 / mo. |
| Median gross rent: | $1,573 / mo. | $1,268 / mo. |
| Average household size (owner-occupied): | 2.57 | 2.53 |
| Average household size (renter-occupied): | 1.84 | 2.38 |
Households (03857 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Total households: | 4,203 | -- | -- |
| Married-couple households: | 1,861 | 44.3% | 47.5% |
| Cohabiting couple households: | 577 | 13.7% | 7.0% |
| Male householder, no spouse: | 817 | 19.4% | 5.4% |
| Female householder, no spouse: | 914 | 21.7% | 12.7% |
| Householder living alone: | 1,001 | 23.8% | 28.6% |
| 65 years and over living alone: | 1,046 | 24.9% | 11.8% |
| Average household size: | 2.23 | -- | 2.53 |
| Average family size: | 2.72 | -- | -- |
Marital Status (03857 zip code)
| Population 15 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 4,166 | -- | -- |
| Never married: | 1,713 | 41.1% | 37.0% |
| Now married: | 2,007 | 48.2% | 49.5% |
| Separated: | 67 | 1.6% | 1.5% |
| Widowed: | 344 | 8.3% | 2.6% |
| Divorced: | 1,155 | 27.7% | 9.3% |
School Enrollment (03857 zip code)
| Population 3 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Enrolled in school: | 1,845 | -- | -- |
| Nursery school, preschool: | 160 | 8.7% | 5.8% |
| Kindergarten: | 96 | 5.2% | 5.0% |
| Elementary school (grades 1-8): | 670 | 36.3% | 40.5% |
| High school (grades 9-12): | 350 | 19.0% | 21.4% |
| College or graduate school: | 569 | 30.8% | 27.3% |
Veterans & Disability (03857 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Civilian population 18 years and over: | 7,738 | -- | -- |
| Veterans: | 656 | 8.5% | 6.3% |
| Civilian noninstitutionalized population: | 9,305 | -- | -- |
| With a disability: | 766 | 8.2% | 13.4% |
| Under 18 with disability: | 32 | 4.2% | 5.8% |
| 18 to 64 with disability: | 375 | 49.0% | 10.4% |
| 65 and over with disability: | 359 | 46.9% | 33.4% |
Mobility (Residence 1 Year Ago) (03857 zip code)
| Population 1 year and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Same house: | 7,943 | 84.5% | 86.9% |
| Different house: | 1,382 | 14.7% | 13.1% |
| Same county: | 472 | 34.2% | 7.0% |
| Different county: | 885 | 64.0% | 3.2% |
| Different state: | 414 | 30.0% | 2.5% |
| Abroad: | 25 | 1.8% | 0.4% |
Place of Birth (03857 zip code)
| Number# | Percent% | US AvgUS | |
|---|---|---|---|
| Native born: | 9,143 | 97.3% | 86.2% |
| Foreign born: | 103 | 1.1% | 13.9% |
| Naturalized citizen: | 257 | 249.5% | 52.7% |
| Not a citizen: | 257 | 249.5% | 47.3% |
| Foreign-born by region: | -- | -- | -- |
| Europe: | 257 | 249.5% | 10.5% |
| Asia: | 35 | 34.0% | 31.3% |
| Africa: | 14 | 13.6% | 5.5% |
| Oceania: | 0 | 0.0% | 0.5% |
| Latin America: | 72 | 69.9% | 50.0% |
| Northern America: | 37 | 35.9% | 2.2% |
Language Spoken at Home (03857 zip code)
| Population 5 years and over | Number# | Percent% | US AvgUS |
|---|---|---|---|
| Total: | 8,956 | -- | -- |
| English only: | 8,479 | 94.7% | 78.3% |
| Language other than English: | 477 | 5.3% | 21.5% |
| By language: | -- | -- | -- |
| Spanish: | 152 | 1.7% | 13.3% |
| Other Indo-European languages: | 255 | 2.8% | 3.5% |
| Asian/Pacific Island languages: | 61 | 0.7% | 3.5% |
| Other languages: | 9 | 0.1% | 1.0% |
Computers & Internet (03857 zip code)
| Households | Percent% | US AvgUS | |
|---|---|---|---|
| Households with a computer: | 4,203 | 100.0% | 93.1% |
| Households with broadband internet: | 4,151 | 98.8% | 89.4% |
Newmarket, NH03857