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CITY · 2000 CENSUS

Northfield

Illinois · 5,389 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 $91,313. Population has grown 16% since 1990. 68% of adults hold a bachelor's degree or higher, well above the national rate of 24%. Median home value is $380,200. With a median age of 44.4, the population is older than the US median of 35.2. Households here earn about 96% more than the Illinois median.

At a glance
Wealthier
above the US median
US median: $42,589
Older
median age 44.4
US median: 35.2
More educated
68% hold a bachelor's degree
US average: 24%
Stable housing
home values roughly flat, inflation adjusted
US median home: $120,530
Section 01

Population & growth

5,389
+16%since 1990
from 4,635 in 1990
1990 – 2025
1,668 / sq mi
+16%since 1990
from 1,435 / sq mi in 1990
US average: 242
44.4
+5%since 1990
from 42.3 in 1990
US average: 35.2
Population, 19902024
5K5K5K6K6K1990201020202024Northfield
20245K
1990201020202024
Section 02

Income & economy

$91,313
−8%inflation adjusted, since 1990
from $75,412 in 1990
US average: $42,589
1990 – 2024
$63,857
+38%since 1990
from $46,128 in 1990
US average: $21,522
1.6%
−1.1 ptssince 1990
from 2.6% in 1990
US average: 12.4%
Section 03

Housing

$380,200
Unchangedinflation adjusted, since 1990
from $289,600 in 1990
US average: $120,530
1990 – 2024
$1,158
−2%inflation adjusted, since 1990
from $898 in 1990
US average: $602
91.8%
+2.9 ptssince 1990
from 88.9% in 1990
8.2% rent
4.2
+8%since 1990
from 3.8 in 1990
1990 – 2024
RELATED:See current rent listings in Northfield on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic95.6%(4,429)
Black0%(0)
Hispanic / Latino0.9%(44)
Asian4.3%(200)
Diversity Score12.8%(591)
2000
White, non-Hispanic91.2%(4,917)
Black0.5%(27)
Hispanic / Latino1.7%(90)
Asian5.6%(300)
Diversity Score18.3%(989)
18
+44%since 1990
from 13 in 1990
1990 – 2024
Section 05

Education

68.1%
+4.7 ptssince 1990
from 63.4% in 1990
US average: 24.4%
High school or higher
96.5%
+1.5 ptssince 1990
from 94.9% in 1990
US average: 80.3%
28.0%
+2.2 ptssince 1990
from 25.8% in 1990
US average: 8.8%
Section 06

Commute & transportation

20.6 min
−27%since 1990
from 28.3 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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Frequently asked

How many people live in Northfield, Illinois?

Northfield, Illinois has about 5,389 residents according to the 2000 Census.

What is the median household income in Northfield, Illinois?

The typical household in Northfield, Illinois earns about $91,313 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 $380,200, and the typical rent is about $1,158 a month.

How educated are people in Northfield, Illinois?

About 68.1% 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 1.6% of people in Northfield, Illinois live below the federal poverty line.

Has Northfield, Illinois grown since 1990?

Yes, Northfield, Illinois has grown since 1990. The population has added about 754 residents, a change of about 16 percent over that period.

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

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