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CITY · 2000 CENSUS

Rock City

Illinois · 313 residents · 0.136 sq mi
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The short version

Rock City has roughly average household income, with a median household income of $46,250. Population has held roughly steady since 1990. 7% of adults hold a bachelor's degree or higher, below the national rate of 24%. Median home value has risen by half since 1990, reaching $79,300. Poverty is rare here, at 4.7% of residents.

At a glance
Wealthier
above the US median
US median: $42,589
Younger
median age 33.5
US median: 35.2
Less educated
7% hold a bachelor's degree
US average: 24%
Less affordable
home values up 32%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

313
+11%since 1990
from 283 in 1990
1990 – 2025
2,301 / sq mi
+11%since 1990
from 2,081 / sq mi in 1990
US average: 242
33.5
+5%since 1990
from 32.0 in 1990
US average: 35.2
Population, 19902024
2673153624094571990201020202024Rock City
2024441
1990201020202024
Section 02

Income & economy

$46,250
+31%inflation adjusted, since 1990
from $26,875 in 1990
US average: $42,589
1990 – 2024
$20,920
+73%since 1990
from $12,064 in 1990
US average: $21,522
4.7%
−3.4 ptssince 1990
from 8.1% in 1990
US average: 12.4%
Section 03

Housing

$79,300
+32%inflation adjusted, since 1990
from $45,500 in 1990
US average: $120,530
1990 – 2024
$283
−22%inflation adjusted, since 1990
from $275 in 1990
US average: $602
83.3%
−5.9 ptssince 1990
from 89.2% in 1990
16.7% rent
1.7
+1%since 1990
from 1.7 in 1990
1990 – 2024
RELATED:See current rent listings in Rock City on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic97.9%(277)
Black0%(0)
Hispanic / Latino2.1%(6)
Asian0%(0)
Diversity Score10.1%(28)
2000
White, non-Hispanic99.7%(312)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Diversity Score0%(0)
0
−100%since 1990
from 10 in 1990
1990 – 2024
Section 05

Education

6.5%
−1.7 ptssince 1990
from 8.2% in 1990
US average: 24.4%
High school or higher
79.9%
+9.0 ptssince 1990
from 70.9% in 1990
US average: 80.3%
3.3%
+3.3 ptssince 1990
from 0.0% in 1990
US average: 8.8%
Section 06

Commute & transportation

15.5 min
−45%since 1990
from 27.9 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 Rock City, Illinois?

Rock City, Illinois has about 313 residents according to the 2000 Census.

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

The typical household in Rock City, Illinois earns about $46,250 a year. Half of households make more than that, and half make less.

Is Rock City, Illinois expensive?

In Rock City, Illinois, the median home is worth about $79,300, and the typical rent is about $283 a month.

How educated are people in Rock City, Illinois?

About 6.5% of adults age 25 and over in Rock City, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Rock City, Illinois?

About 4.7% of people in Rock City, Illinois live below the federal poverty line.

Has Rock City, Illinois grown since 1990?

Yes, Rock City, Illinois has grown since 1990. The population has added about 30 residents, a change of about 11 percent over that period.

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

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