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CITY · 1990 CENSUS

Flat Rock

Illinois · 452 residents · 0.856 sq mi
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The short version

Flat Rock has notably lower household income than the US average, with a median household income of $21,875. Population has held roughly steady since 2000. 4% of adults hold a bachelor's degree or higher, below the national rate of 20%. Median home value is $22,200. Households here earn about 32% less than the Illinois median.

At a glance
Lower income
below the US median
US median: $30,130
Mid-age
median age 32.9
US median: 33.0
Less educated
4% hold a bachelor's degree
US average: 20%
More affordable
home values down 27%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

452
+9%vs 2000
vs 415 in 2000
1990 – 2025
528 / sq mi
+9%vs 2000
vs 485 / sq mi in 2000
US average: 221
32.9
−13%vs 2000
vs 37.9 in 2000
US average: 33.0
Population, 19902024
2603133674204731990201020202024Flat Rock
2024337
1990201020202024
Section 02

Income & economy

$21,875
−20%inflation adjusted, since 2000
vs $36,184 in 2000
US average: $30,130
1990 – 2024
$9,636
−41%vs 2000
vs $16,398 in 2000
US average: $14,340
12.6%
Unchangedvs 2000
vs 12.6% in 2000
US average: 13.2%
Section 03

Housing

$22,200
−27%inflation adjusted, since 2000
vs $39,800 in 2000
US average: $93,722
1990 – 2024
$99
−60%inflation adjusted, since 2000
vs $325 in 2000
US average: $450
93.2%
+0.4 ptsvs 2000
vs 92.8% in 2000
6.8% rent
1.0
−8%vs 2000
vs 1.1 in 2000
1990 – 2024
RELATED:See current rent listings in Flat Rock on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic96.6%(401)
Black1.9%(8)
Hispanic / Latino0%(0)
Asian0.7%(3)
Other0%
Diversity Score6.5%(27)
1990
White, non-Hispanic99.1%(448)
Black0.9%(4)
Hispanic / Latino2.7%(12)
Asian0%(0)
Other0%(0)
Diversity Score8.4%(38)
8
+28%vs 2000
vs 7 in 2000
1990 – 2024
Section 05

Education

3.6%
−1.6 ptsvs 2000
vs 5.2% in 2000
US average: 20.3%
High school or higher
79.1%
−2.2 ptsvs 2000
vs 81.3% in 2000
US average: 75.2%
2.9%
+0.8 ptsvs 2000
vs 2.1% in 2000
US average: 7.1%
Section 06

Commute & transportation

18.9 min
+54%vs 2000
vs 12.3 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.

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Frequently asked

How many people live in Flat Rock, Illinois?

Flat Rock, Illinois has about 452 residents according to the 1990 Census.

What is the median household income in Flat Rock, Illinois?

The typical household in Flat Rock, Illinois earns about $21,875 a year. Half of households make more than that, and half make less.

Is Flat Rock, Illinois expensive?

In Flat Rock, Illinois, the median home is worth about $22,200, and the typical rent is about $99 a month.

How educated are people in Flat Rock, Illinois?

About 3.6% of adults age 25 and over in Flat Rock, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Flat Rock, Illinois?

About 12.6% of people in Flat Rock, Illinois live below the federal poverty line.

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

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