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CITY · 2010 ACS

Waterloo

Illinois · 9,811 residents · 8.234 sq mi
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The short version

Waterloo is wealthier than most US places, with a median household income of $61,012. Population has grown 29% since 2000. Median home value has risen by half since 2000, reaching $191,400. Poverty is rare here, at 5.4% of residents.

At a glance
Wealthier
above the US median
US median: $52,703
Older
median age 39.8
US median: 37.2
Average education
25% hold a bachelor's degree
US average: 28%
Less affordable
home values up 27%, inflation adjusted
US median home: $225,659
Section 01

Population & growth

Total population
9,811
+29%since 2000
from 7,614 in 2000
1990 – 2025
Population density
1,192 / sq mi
+29%since 2000
from 925 / sq mi in 2000
US average: 261
Median age
39.8
+9%since 2000
from 36.4 in 2000
US average: 37.2
Population, 1990 – 2024
4K6K8K10K12K1990201020202024Waterloo
202411K
1990201020202024
Section 02

Income & economy

Median household income
$61,012
+3%inflation adjusted, since 2000
from $46,938 in 2000
US average: $52,703
1990 – 2024
Per capita income
$30,455
+44%since 2000
from $21,081 in 2000
US average: $27,286
Households earning $100K+
41.4%
−0.8 ptssince 2009
from 42.2% in 2009
US average: 33.3%
Poverty rate
5.4%
+1.6 ptssince 2000
from 3.8% in 2000
US average: 13.8%
Income inequality (Gini)
0.409
US average: 0.461
Workforce by industry, 2010
Retail trade11.7%
US avg: 10.9%
Information9.4%
US avg: 11.5%
Wholesale trade7.8%
US avg: 7.2%
Finance & insurance6.7%
US avg: 5.1%
Other services6.1%
US avg: 7%
Public administration5.4%
US avg: 4.9%
Professional, scientific, technical4.7%
US avg: 4.2%
Arts, entertainment, food4.3%
US avg: 2.4%
Transportation & warehousing2.9%
US avg: 3.1%
Education & health services2%
US avg: 0.9%
Agriculture, forestry, fishing0.3%
US avg: 1.9%
Manufacturing0.3%
US avg: 0.5%
Construction0%
US avg: 1.4%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$191,400
+27%inflation adjusted, since 2000
from $118,800 in 2000
US average: $225,659
1990 – 2024
Median gross rent
$715
+4%inflation adjusted, since 2000
from $543 in 2000
US average: $853
Owner-occupied
54.0%
−17.0 ptssince 2000
from 71.1% in 2000
25.1% rent
Vacancy rate
5.8%
−1.8 ptssince 2009
from 7.7% in 2009
US average: 12.1%
Owner cost-burdened
22.7%
−1.4 ptssince 2009
from 24.1% in 2009
US average: 30.9%
Renter cost-burdened
34.4%
+1.5 ptssince 2009
from 32.8% in 2009
US average: 46.8%
Afford Score
3.1
+24%since 2000
from 2.5 in 2000
1990 – 2024
RELATED:See current rent listings in Waterloo on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic98.4%(7,495)
Black0%(0)
Hispanic / Latino0.7%(52)
Asian0.3%(24)
Other0%
Diversity Score2.5%(190)
2010
White, non-Hispanic96.8%(9,498)
Black0.1%(13)
Hispanic / Latino1.5%(149)
Asian0.3%(33)
Other0.3%(33)
Diversity Score5.7%(564)
Diversity Score
6
+131%since 2000
from 2 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
24.9%
+5.5 ptssince 2000
from 19.3% in 2000
US average: 27.9%
High school or higher
90.9%
+5.5 ptssince 2000
from 85.4% in 2000
US average: 84.9%
Graduate degree
7.7%
+1.5 ptssince 2000
from 6.2% in 2000
US average: 10.2%
Section 06

Commute & transportation

Average commute
29.4 min
+39%since 2000
from 21.1 min in 2000
US average: 25.2
Drive alone to work
81.7%
+1.5 ptssince 2009
from 80.2% in 2009
US average: 76.2%
Carpooled to work
11.8%
+0.5 ptssince 2009
from 11.3% in 2009
US average: 10.4%
Public transit
1.0%
Unchangedsince 2009
from 1.0% in 2009
US average: 4.7%
Worked from home
3.6%
−0.9 ptssince 2009
from 4.5% in 2009
US average: 4.1%
Walked to work
1.9%
−0.7 ptssince 2009
from 2.6% in 2009
US average: 2.8%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.5%
No vehicle available
4.7%
+0.3 ptssince 2009
from 4.4% in 2009
US average: 8.7%
Section 07

Work & employment

Self-employed
14.0%
−0.7 ptssince 2009
from 14.7% in 2009
US average: 12.9%
Management & professional
32.7%
−28.4 ptssince 2009
from 61.1% in 2009
US average: 35.2%
Section 08

People & community

Male
48.1%
−1.6 ptssince 2009
from 49.7% in 2009
Female
51.9%
+1.6 ptssince 2009
from 50.3% in 2009
Foreign born
1.0%
−1.2 ptssince 2009
from 2.2% in 2009
US average: 12.8%
Veterans
9.5%
−39.2 ptssince 2009
from 48.7% in 2009
US average: 9.9%
Drill deeper

Places similar to Waterloo

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Head to head

Compare Waterloo to nearby cities

WATERLOO VS
Columbia
Income$107,606+76%
Home value$293,000+53%
Population10,865−2%
SEE FULL COMPARISON →
WATERLOO VS
Oakville
Income$106,362+74%
Home value$318,600+66%
Population35,333+217%
SEE FULL COMPARISON →
WATERLOO VS
Arnold
Income$78,370+28%
Home value$220,000+15%
Population20,994+89%
SEE FULL COMPARISON →
WATERLOO VS
Mehlville
Income$67,071+10%
Home value$218,400+14%
Population29,805+168%
SEE FULL COMPARISON →
Frequently asked

How many people live in Waterloo, Illinois?

Waterloo, Illinois has about 9,811 residents according to the 2010 American Community Survey.

What is the median household income in Waterloo, Illinois?

The typical household in Waterloo, Illinois earns about $61,012 a year. Half of households make more than that, and half make less.

Is Waterloo, Illinois expensive?

In Waterloo, Illinois, the median home is worth about $191,400, and the typical rent is about $715 a month.

How educated are people in Waterloo, Illinois?

About 24.9% of adults age 25 and over in Waterloo, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Waterloo, Illinois?

About 5.4% of people in Waterloo, Illinois live below the federal poverty line.

Has Waterloo, Illinois grown since 1990?

Yes, Waterloo, Illinois has grown since 1990. The population has added about 4,739 residents, a change of about 93 percent over that period.

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

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