City · New Jersey
Northfield, New Jersey
Northfield, city, in Atlantic County, New Jersey. Northfield had 8,496 residents on July 1, 2025 by the Census Bureau's estimate, up 0.8% since 2020; the 2020 Census counted 8,434 and the ACS 2020-2024 5-year estimates put it at 8,456 (±39). GEOID 3452950.
Residents, July 2025 estimate
8,496
Census Bureau estimate (no margin published)
2020 Census count: 8,434 · ACS 2020-2024: 8,456 ±39
Median household income
$111,599
±$6,010 (90% margin)
New Jersey: $103,556
Median home value
$316,200
±$22,284 (90% margin)
New Jersey: $454,400
Median gross rent
$1,835
±$228 (90% margin)
New Jersey: $1,720
Where is Northfield and what county is it in?
Northfield is a city in Atlantic County, New Jersey. It covers 3.6 square miles of land, 2,355 residents per square mile in 2020.
Northfield is in the Atlantic City-Hammonton, NJ metropolitan statistical area, which takes in 2 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Northfield, and is it growing?
The Census Bureau estimates that 8,496 people lived in Northfield on July 1, 2025, up 0.8% since 2020, slower than New Jersey (+2.8%). The 2020 Census counted 8,434 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 8,456 (±39).
| Measure | Northfield | Atlantic County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 8,456 ±39 | 276,270 | +303 |
| Households | 3,257 ±147 | 109,557 | +394 |
| Average household size | 2.55 ±0.11 | 2.47 | −0.24 |
| Housing units | 3,408 ±165 | 132,199 | +285 |
Northfield's population since 2000
From 7,725 in 2000 to 8,496 in 2025: up 10.0%. The 2000, 2010 and 2020 figures are census counts, each for Northfield as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Northfield?
The median resident of Northfield is 43.7 years old; 18.9% are under 18 and 19.5% are 65 or older. The largest group is non-Hispanic white residents at 76.3%, then Hispanic or Latino residents (of any race) at 9.5%. 12.9% of residents were born outside the United States.
| Measure | Northfield | Atlantic County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 43.7 ±3.2 | 42.3 | no clear change |
| Under 18 years | 18.9% ±2.2 pts | 20.8% | – |
| 65 years and over | 19.5% ±2.3 pts | 19.9% | – |
| Male | 49.1% ±2.5 pts | 48.7% | – |
| Hispanic or Latino (any race) | 9.5% ±4.2 pts | 20.4% | no clear change |
| White alone, not Hispanic | 76.3% ±5.4 pts | 54.0% | no clear change |
| Black or African American alone, not Hispanic | 2.1% ±1.2 pts | 12.6% | no clear change |
| Asian alone, not Hispanic | 9.0% ±4.1 pts | 7.8% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.5 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.5 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.9% ±1.8 pts | 4.5% | – |
| Some other race alone, not Hispanic | 0.2% ±0.2 pts | 0.5% | – |
| Born outside the United States | 12.9% ±3.8 pts | 15.9% | no clear change |
| Speak a language other than English at home (age 5+) | 17.8% ±4.6 pts | 26.3% | – |
| Civilian veterans (age 18+) | 5.5% ±2.0 pts | 5.5% | – |
| With a disability | 12.5% ±2.8 pts | 14.6% | – |
| No health insurance coverage | 2.5% ±1.4 pts | 7.0% | −5.3 pts |
| High school graduate or higher (age 25+) | 94.3% ±2.2 pts | 89.3% | – |
| Bachelor's degree or higher (age 25+) | 48.3% ±5.4 pts | 31.8% | +11.7 pts |
| Graduate or professional degree (age 25+) | 17.7% ±5.1 pts | 10.7% | – |
| Lived in the same house a year earlier | 89.5% ±4.4 pts | 90.1% | – |
| Moved from another state in the past year | 0.4% ±0.3 pts | 1.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Northfield earn?
Half of Northfield's 3,257 households earn less than $111,599 a year (±$6,010), against $78,050 in Atlantic County and $103,556 in New Jersey. In 2015-2019 it was $107,262 in 2024 dollars; the margins of error cannot tell the two periods apart. 4.6% of residents live below the poverty line.
| Measure | Northfield | Atlantic County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $111,599 ±$6,010 | $78,050 | no clear change |
| Mean household income | $152,066 ±$22,096 | $106,340 | – |
| Per capita income | $58,344 ±$8,858 | $41,637 | no clear change |
| People below the poverty line | 4.6% ±2.0 pts | 13.2% | no clear change |
| Children under 18 below the poverty line | 3.7% ±3.1 pts | 18.6% | – |
| Households receiving SNAP | 2.1% ±1.2 pts | 12.2% | – |
| Households with a computer | 97.9% ±1.9 pts | 95.4% | – |
| Households with a broadband subscription | 94.0% ±3.1 pts | 91.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Northfield?
Owners occupy 88.3% of Northfield's occupied homes and renters 11.7%. The median owner-occupied home is valued at $316,200 by its owner (±$22,284). The median renter pays $1,835 a month including utilities, and 42.2% of renters pay 35% or more of their income on rent.
| Measure | Northfield | Atlantic County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $316,200 ±$22,284 | $295,000 | +$41,632 |
| Median gross rent | $1,835 ±$228 | $1,376 | no clear change |
| Renters paying 35% or more of income on rent | 42.2% ±23.7 pts | 47.1% | no clear change |
| Median monthly owner costs, with a mortgage | $2,312 ±$103 | $2,185 | – |
| Owner-occupied homes | 88.3% ±4.9 pts | 68.7% | no clear change |
| Renter-occupied homes | 11.7% ±4.9 pts | 31.3% | – |
| Housing units | 3,408 ±165 | 132,199 | +285 |
| Homeowner vacancy rate | 1.4% ±1.6 pts | 0.8% | – |
| Rental vacancy rate | 0.0% ±11.1 pts | 4.3% | – |
| Single-family detached homes | 88.7% ±4.0 pts | 57.6% | – |
| Mobile homes | 0.0% ±1.3 pts | 2.9% | – |
| Built 2020 or later | 0.2% ±0.3 pts | 1.0% | – |
| Built 2010 to 2019 | 3.2% ±2.3 pts | 5.4% | – |
| Built 1939 or earlier | 14.3% ±4.3 pts | 13.8% | – |
| Households with no vehicle | 1.2% ±0.8 pts | 11.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Northfield building?
Builders took permits for 0 new housing units in Northfield in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 2.9 across New Jersey.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Northfield work and get to work?
80.4% of Northfield's workers drive alone and 9.5% work from home. The average trip to work takes 21.8 minutes. The unemployment rate in 2020-2024 averaged 3.9%.
| Measure | Northfield | Atlantic County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 66.8% ±3.2 pts | 63.6% | – |
| Unemployment rate | 3.9% ±1.6 pts | 8.8% | no clear change |
| Drove alone to work | 80.4% ±7.4 pts | 72.5% | – |
| Carpooled | 3.4% ±2.1 pts | 9.0% | – |
| Public transportation | 1.0% ±0.7 pts | 4.2% | – |
| Walked | 0.5% ±0.4 pts | 2.9% | – |
| Worked from home | 9.5% ±2.8 pts | 9.1% | +4.3 pts |
| Mean travel time to work | 21.8 min ±1.4 | 25.2 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Northfield?
3 census tracts lie mostly in Northfield (2020 census blocks). Their median household incomes run from $91,982 (Tract 124.01) to $118,929 (Tract 124.02).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 123.02Atlantic County | 3,351 | $114,880 |
| Tract 124.01Atlantic County | 3,030 | $91,982 |
| Tract 124.02Atlantic County | 2,075 | $118,929 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Northfield) · Census block assignment files
How does Northfield compare with other places in New Jersey?
By the Census Bureau's July 2025 estimates, Northfield is the 3,595th-most populous of the 19,476 U.S. incorporated places that have one and the 138th-most populous of 323 in New Jersey.
Northfield ranks 392nd of 771 places in New Jersey with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 138th | 323 |
| Growth 2020-2025 (PEP) | 421st | 532 |
| Residents per square mile | 363rd | 787 |
| Median household income | 392nd | 771 |
| Per capita income | 333rd | 785 |
| Median home value | 603rd | 777 |
| Median gross rent | 310th | 701 |
| Poverty rate | 371st | 539 |
| Bachelor's degree or higher | 346th | 780 |
| Median age | 328th | 786 |
| Owner-occupied share | 220th | 777 |
| Work from home | 590th | 695 |
| Travel time to work | 750th | 787 |
Northfield's figures with every place in New Jersey (CSV)
Every place in New Jersey, sortable · Compare Northfield with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Northfield?
13 of the 57 figures for Northfield on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Northfield are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Northfield.