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CITY · 1990 CENSUS

Northfield

Illinois · 4,635 residents · 3.23 sq mi
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The short version

Northfield is significantly wealthier than the US average, with a median household income of $75,412. Population has declined 14% since 2000. 63% of adults hold a bachelor's degree or higher, well above the national rate of 20%. Median home value is $289,600. With a median age of 42.3, the population is older than the US median of 33.0. Households here earn about 134% more than the Illinois median.

At a glance
Wealthier
above the US median
US median: $30,130
Older
median age 42.3
US median: 33.0
More educated
63% hold a bachelor's degree
US average: 20%
Stable housing
home values roughly flat, inflation adjusted
US median home: $93,722
Section 01

Population & growth

Total population
4,635
−14%vs 2000
vs 5,389 in 2000
1990 – 2025
Median age
42.3
−5%vs 2000
vs 44.4 in 2000
US average: 33.0
Population, 1990 – 2024
5K5K5K6K6K1990201020202024Northfield
20245K
1990201020202024
Age distribution, 1990
Under 56.5%(301)
US avg: 7.3%
5 to 96.9%(320)
US avg: 7.3%
10 to 145.5%(254)
US avg: 6.9%
15 to 195.8%(270)
US avg: 7.1%
20 to 244.8%(224)
US avg: 7.5%
25 to 3411.3%(524)
US avg: 17.5%
35 to 4414.4%(667)
US avg: 15.1%
45 to 5415%(696)
US avg: 10.2%
55 to 6414.2%(660)
US avg: 8.5%
65 to 7410.1%(469)
US avg: 7.3%
75 to 844.7%(218)
US avg: 4%
85 and over0.7%(32)
US avg: 1.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$75,412
+9%inflation adjusted, since 2000
vs $91,313 in 2000
US average: $30,130
1990 – 2024
Per capita income
$46,128
−28%vs 2000
vs $63,857 in 2000
US average: $14,340
Poverty rate
2.6%
+1.1 ptsvs 2000
vs 1.6% in 2000
US average: 13.2%
Section 03

Housing

Median home value
$289,600
Unchangedinflation adjusted, since 2000
vs $380,200 in 2000
US average: $93,722
1990 – 2024
Median gross rent
$898
+2%inflation adjusted, since 2000
vs $1,158 in 2000
US average: $450
Owner-occupied
88.9%
−2.9 ptsvs 2000
vs 91.8% in 2000
11.1% rent
RELATED:See current rent listings in Northfield on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic91.2%(4,917)
Black0.5%(27)
Hispanic / Latino1.7%(90)
Asian5.6%(300)
Other0%
1990
White, non-Hispanic95.6%(4,429)
Black0%(0)
Hispanic / Latino0.9%(44)
Asian4.3%(200)
Other0.1%(6)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican1%(57)
Puerto Rican0.5%(25)
Salvadoran0.4%(24)
Asian origin
Korean2.4%(133)
Chinese1.2%(67)
Malaysian0.6%(33)
Japanese0.5%(26)
Taiwanese0.3%(15)
Filipino0.1%(7)
Ancestry
Irish31.2%(1,710)
German29.5%(1,619)
English11.2%(615)
Polish6.9%(378)
Italian6.4%(350)
Russian5.7%(312)
Swedish4.4%(242)
Greek3.4%(188)
Israeli1.7%(94)
Scottish1.5%(83)
Danish1.1%(58)
American1%(55)
+ 23 more ancestry groups with data
French0.9%(48)
Iranian0.8%(44)
Norwegian0.7%(36)
Czech0.6%(33)
Dutch0.5%(27)
Slovak0.4%(23)
Lithuanian0.3%(19)
Scotch-Irish0.3%(15)
Croatian0.3%(14)
Welsh0.3%(14)
Australian0.2%(13)
Finnish0.2%(12)
Macedonian0.2%(12)
Armenian0.2%(9)
Belgian0.2%(9)
Turkish0.2%(9)
Ukrainian0.2%(9)
Portuguese0.1%(8)
Swiss0.1%(8)
Canadian0.1%(7)
British0.1%(3)
RANKED:Largest Irish population · Largest German population · Largest English population · Largest Polish population · Largest Italian population
Section 05

Education

Bachelor's degree or higher
63.4%
−4.7 ptsvs 2000
vs 68.1% in 2000
US average: 20.3%
High school or higher
94.9%
−1.5 ptsvs 2000
vs 96.5% in 2000
US average: 75.2%
Graduate degree
25.8%
−2.2 ptsvs 2000
vs 28.0% in 2000
US average: 7.1%
Section 06

Commute & transportation

Average commute
28.3 min
+38%vs 2000
vs 20.6 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)
Men 15+
Never married19%(379)
Married73%(1,459)
Widowed2.8%(56)
Divorced5.2%(104)
Women 15+
Never married20.2%(507)
Married58.2%(1,457)
Widowed15.5%(389)
Divorced6.1%(152)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
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Compare Northfield to nearby cities

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NORTHFIELD VS
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NORTHFIELD VS
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NORTHFIELD VS
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Home value$810,600+180%
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Frequently asked

How many people live in Northfield, Illinois?

Northfield, Illinois has about 4,635 residents according to the 1990 Census.

What is the median household income in Northfield, Illinois?

The typical household in Northfield, Illinois earns about $75,412 a year. Half of households make more than that, and half make less.

Is Northfield, Illinois expensive?

In Northfield, Illinois, the median home is worth about $289,600, and the typical rent is about $898 a month.

How educated are people in Northfield, Illinois?

About 63.4% of adults age 25 and over in Northfield, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Northfield, Illinois?

About 2.6% of people in Northfield, Illinois live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →