United States › New Jersey › Northfield CITY
Northfield New Jersey · 8,496 residents (2025 est.) · 3.58 sq mi
Time machine
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The short version
Northfield is a city of 8,456 people in New Jersey. Owners hold 88% of the housing stock. That puts it in the top 5% of US cities for household income. This is an unusually credentialed place: 48% of adults have a four-year degree. The median age is 43.7, about 5 years above the US median. There are 2,361 people per square mile.
At a glance
Wealthier
above the US median
US median: $82,259
Older
median age 43.7
US median: 38.9
More educated
48% hold a bachelor's degree
US average: 36%
Less affordable
home values up 36%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 7,725 in 2000
8,496 in 2025 (Census Bureau estimate)
2,361 / sq mi
+7%since 2009
from 2,209 / sq mi in 2009
US average: 281
from 40.4 in 2000
US average: 38.9
Population, 1990 – 2024
7K 8K 8K 8K 9K 1990 2000 2010 2020 2024 Northfield Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $111,599
+8%inflation adjusted, since 2000
from $56,875 in 2000
US average: $82,259
from $25,059 in 2000
US average: $44,673
Households earning $100K+
from 43.0% in 2009
US average: 53.3%
from 5.6% in 2000
US average: 12.5%
from 0.358 in 2010
US average: 0.476
Workforce by industry, 2024
Professional, scientific, technical 3.6%
Public administration 3.4%
Transportation & warehousing 1.5%
Education & health services 1.2%
Arts, entertainment, food 0.3%
Agriculture, forestry, fishing 0.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$316,200
+36%inflation adjusted, since 2000
from $127,700 in 2000
US average: $376,019
$1,835
+29%inflation adjusted, since 2000
from $783 in 2000
US average: $1,442
from 92.3% in 2000
11.7% rent
from 1.5% in 2009
US average: 10.0%
from 2.73 people in 2009
US average: 2.54
from 43.5% in 2009
US average: 22.9%
from 69.9% in 2009
US average: 47.4%
from 4.0 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 89.8%(6,938)
Hispanic / Latino 4.4%(338)
2024
White, non-Hispanic 76.3%(6,450)
Hispanic / Latino 9.5%(802)
from 29 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 25 more ancestry groups with data from 22.5% in 2000
US average: 35.6%
High school or higher
from 87.5% in 2000
US average: 89.6%
from 5.0% in 2000
US average: 14.0%
Section 06
Commute & transportation from 12.5 min in 2000
US average: 26.5
from 86.4% in 2009
US average: 68.9%
from 7.0% in 2009
US average: 8.5%
from 0.7% in 2009
US average: 3.2%
from 4.0% in 2009
US average: 15.0%
from 1.1% in 2009
US average: 2.4%
from 0.0% in 2009
US average: 0.4%
from 3.5% in 2009
US average: 8.3%
Section 07
Work & employment from 8.5% in 2011
US average: 5.2%
from 69.7% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 76.6% in 2020
US average: 74.6%
from 14.8% in 2009
US average: 13.1%
from 34.0% in 2009
US average: 42.5%
Section 08
People & community from 9.2% in 2009
US average: 14.1%
from 12.9% in 2009
US average: 6.2%
from 8.5% in 2012
US average: 13.3%
from 7.1% in 2013
US average: 8.4%
from 84.1% in 2017
US average: 91.0%
Computer in household
from 96.2% in 2020
US average: 95.5%
from 88.2% in 2020
US average: 87.7%
from 81.3% in 2016
US average: 77.7%
from 8.8% in 2016
US average: 13.6%
Marital status
Men 15+
Never married 37.1%(1,346)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 7.1% in 2013
US average: 8.4%
from 64.1% in 2020
US average: 54.8%
Direct-purchase
from 18.6% in 2020
US average: 13.8%
from 21.0% in 2020
US average: 18.4%
from 11.9% in 2020
US average: 20.9%
VA health care
from 1.5% in 2020
US average: 2.2%
Any private
from 78.4% in 2020
US average: 67.1%
Any public
from 30.5% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 21.3%(80)
Gulf War (1990s) 29.5%(111)
Share of the 376 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper
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Frequently asked
How many people live in Northfield, New Jersey? Northfield, New Jersey has about 8,456 residents according to the 2024 American Community Survey.
What is the median household income in Northfield, New Jersey? The typical household in Northfield, New Jersey earns about $111,599 a year. Half of households make more than that, and half make less.
Is Northfield, New Jersey expensive? In Northfield, New Jersey, the median home is worth about $316,200, and the typical rent is about $1,835 a month.
How educated are people in Northfield, New Jersey? About 48.3% of adults age 25 and over in Northfield, New Jersey hold a bachelor's degree or higher.
What is the poverty rate in Northfield, New Jersey? About 4.6% of people in Northfield, New Jersey live below the federal poverty line.
Has Northfield, New Jersey grown since 1990? Yes, Northfield, New Jersey has grown since 1990. The population has added about 1,151 residents, a change of about 16 percent over that period.
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