CITY · 1990 CENSUS

Northfield

Illinois · 4,635 residents · 3.23 sq mi

Time machine

VIEWING

COMPARE TO

The short version

Northfield is a city of 4,635 people in Illinois. Households here earn about 134% more than in Illinois as a whole. This is an unusually credentialed place: 63% of adults have a four-year degree. The typical home is worth $289,600. Median household income runs $75,412, well clear of the $30,130 US median. The median age is 42.3, about 9 years above the US 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

Land area

3.23 sq mi

Population, 1990 – 2024

20245K

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

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)

Central American0.4%(24)

Salvadoran0.4%(24)

Asian origin

Asian Indian3%(164)

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)

French Canadian0.2%(9)

Subsaharan African0.2%(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

Section 09

Health coverage

Showing 2024 (the nearest year with coverage data).

Uninsured

0.4%

−4.3 ptssince 2013

from 4.7% in 2013

US average: 8.4%

Employer-based

70.0%

+7.8 ptssince 2020

from 62.2% in 2020

US average: 54.8%

Direct-purchase

19.4%

−4.0 ptssince 2020

from 23.4% in 2020

US average: 13.8%

Medicare

26.6%

−0.1 ptssince 2020

from 26.7% in 2020

US average: 18.4%

Medicaid

4.0%

+1.6 ptssince 2020

from 2.4% in 2020

US average: 20.9%

VA health care

1.2%

+0.3 ptssince 2020

from 0.9% in 2020

US average: 2.2%

Any private

87.1%

+2.7 ptssince 2020

from 84.4% in 2020

US average: 67.1%

Any public

29.8%

+1.4 ptssince 2020

from 28.4% 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)23.8%(36)

US avg: 26.4%

Gulf War (1990s)23.8%(36)

US avg: 24.3%

Vietnam era51.7%(78)

US avg: 33.1%

Korean War15.9%(24)

US avg: 4.5%

World War II0%(0)

US avg: 1%

Share of the 151 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