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CITY

Rock City

Illinois · 285 residents (2025 est.) · 0.136 sq mi
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The short version

Rock City has lower-than-average household income, with a median household income of $68,125. Population has grown 41% since 2000. 11% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has risen by half since 2000, reaching $122,700. At a median age of 26.8, residents skew younger than the country as a whole.

At a glance
Lower income
below the US median
US median: $82,259
Younger
median age 26.8
US median: 38.9
Less educated
11% hold a bachelor's degree
US average: 36%
More affordable
home values down 15%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
441
+41%since 2000
from 313 in 2000
1990 – 2025
Population density
3,243 / sq mi
+41%since 2000
from 2,301 / sq mi in 2000
US average: 281
Median age
26.8
−20%since 2000
from 33.5 in 2000
US average: 38.9

PEP 2025 EST:285 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
2673153624094571990201020202024Rock City
2024441
1990201020202024
Section 02

Income & economy

Median household income
$68,125
−19%inflation adjusted, since 2000
from $46,250 in 2000
US average: $82,259
1990 – 2024
Per capita income
$26,036
+24%since 2000
from $20,920 in 2000
US average: $44,673
Households earning $100K+
46.8%
+22.6 ptssince 2009
from 24.1% in 2009
US average: 53.3%
Poverty rate
4.5%
−0.2 ptssince 2000
from 4.7% in 2000
US average: 12.5%
Income inequality (Gini)
0.357
−5%since 2010
from 0.377 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade19.2%
US avg: 9.9%
Wholesale trade18.7%
US avg: 6.9%
Other services12.1%
US avg: 6.7%
Information11.1%
US avg: 10.8%
Public administration8.1%
US avg: 4.8%
Agriculture, forestry, fishing4%
US avg: 1.6%
Construction4%
US avg: 1.2%
Transportation & warehousing3%
US avg: 2.2%
Finance & insurance2%
US avg: 5.9%
Professional, scientific, technical2%
US avg: 5.1%
Arts, entertainment, food2%
US avg: 1.9%
Manufacturing0%
US avg: 0.4%
Education & health services0%
US avg: 0.9%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$122,700
−15%inflation adjusted, since 2000
from $79,300 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$842
+63%inflation adjusted, since 2000
from $283 in 2000
US average: $1,442
Owner-occupied
79.9%
−3.5 ptssince 2000
from 83.3% in 2000
20.1% rent
Vacancy rate
1.9%
+1.2 ptssince 2009
from 0.7% in 2009
US average: 10.0%
Owner cost-burdened
17.1%
−0.7 ptssince 2009
from 17.8% in 2009
US average: 22.9%
Renter cost-burdened
35.5%
−11.9 ptssince 2009
from 47.4% in 2009
US average: 47.4%
Afford Score
1.8
+5%since 2000
from 1.7 in 2000
1990 – 2024
Gentrification Score
12
RELATED:See current rent listings in Rock City on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic99.7%(312)
Black0%(0)
Hispanic / Latino0%(0)
Asian0%(0)
Other0%
Diversity Score0%(0)
2024
White, non-Hispanic64.2%(283)
Black0%(0)
Hispanic / Latino33.1%(146)
Asian0%(0)
Other2.7%(12)
Diversity Score59.7%(263)
Diversity Score
60
from 0 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
11.1%
+4.5 ptssince 2000
from 6.5% in 2000
US average: 35.6%
High school or higher
96.0%
+16.1 ptssince 2000
from 79.9% in 2000
US average: 89.6%
Graduate degree
1.3%
−1.9 ptssince 2000
from 3.3% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
30.7 min
+99%since 2000
from 15.5 min in 2000
US average: 26.5
Drive alone to work
75.4%
−15.0 ptssince 2009
from 90.4% in 2009
US average: 68.9%
Carpooled to work
14.9%
+8.8 ptssince 2009
from 6.1% in 2009
US average: 8.5%
Public transit
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
Worked from home
8.7%
+7.7 ptssince 2009
from 1.0% in 2009
US average: 15.0%
Walked to work
0.0%
−2.0 ptssince 2009
from 2.0% in 2009
US average: 2.4%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
7.8%
+1.6 ptssince 2009
from 6.2% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
3.9%
−9.9 ptssince 2011
from 13.7% in 2011
US average: 5.2%
Labor force participation
72.3%
−3.2 ptssince 2011
from 75.5% in 2011
US average: 63.5%
Self-employed
5.6%
−4.6 ptssince 2009
from 10.2% in 2009
US average: 13.1%
Management & professional
22.2%
−27.0 ptssince 2009
from 49.2% in 2009
US average: 42.5%
Section 08

People & community

Male
44.7%
−6.4 ptssince 2009
from 51.1% in 2009
Female
55.3%
+6.4 ptssince 2009
from 48.9% in 2009
Foreign born
3.6%
+3.6 ptssince 2009
from 0.0% in 2009
US average: 14.1%
Veterans
2.9%
−49.4 ptssince 2009
from 52.4% in 2009
US average: 6.2%
With a disability
9.5%
−3.5 ptssince 2012
from 13.0% in 2012
US average: 13.3%
Uninsured
6.3%
−81.9 ptssince 2013
from 88.2% in 2013
US average: 8.4%
Broadband at home
89.0%
+7.4 ptssince 2017
from 81.6% in 2017
US average: 91.0%
English only at home
96.3%
−0.5 ptssince 2016
from 96.8% in 2016
US average: 77.7%
Spanish at home
3.7%
+1.9 ptssince 2016
from 1.8% in 2016
US average: 13.6%
Drill deeper

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Head to head

Compare Rock City to nearby cities

ROCK CITY VS
Freeport
Income$51,723−24%
Home value$92,100−25%
Population23,202+8041%
SEE FULL COMPARISON →
ROCK CITY VS
Monroe
Income$69,334+2%
Home value$195,300+59%
Population10,581+3613%
SEE FULL COMPARISON →
ROCK CITY VS
Machesney Park
Income$75,489+11%
Home value$173,700+42%
Population22,805+7902%
SEE FULL COMPARISON →
ROCK CITY VS
Rockford
Income$54,752−20%
Home value$129,000+5%
Population147,384+51614%
SEE FULL COMPARISON →
Frequently asked

How many people live in Rock City, Illinois?

Rock City, Illinois has about 441 residents according to the 2024 American Community Survey.

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

The typical household in Rock City, Illinois earns about $68,125 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 $122,700, and the typical rent is about $842 a month.

How educated are people in Rock City, Illinois?

About 11.1% 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 4.5% 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 158 residents, a change of about 56 percent over that period.

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

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