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CITY · 2020 ACS

Rock City

Illinois · 293 residents · 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 $49,750. Population has declined 6% since 2000. 12% of adults hold a bachelor's degree or higher, below the national rate of 33%. Median home value is $103,300. Households here earn about 27% less than the Illinois median.

At a glance
Lower income
below the US median
US median: $66,278
Older
median age 42.3
US median: 38.8
Less educated
12% hold a bachelor's degree
US average: 33%
More affordable
home values down 13%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

Total population
293
−6%since 2000
from 313 in 2000
1990 – 2025
Median age
42.3
+26%since 2000
from 33.5 in 2000
US average: 38.8
Population, 1990 – 2024
2673153624094571990201020202024Rock City
2024441
1990201020202024
Age distribution, 2020
Under 54.1%(12)
US avg: 5.6%
5 to 97.2%(21)
US avg: 6.1%
10 to 145.1%(15)
US avg: 6.5%
15 to 197.2%(21)
US avg: 6.6%
20 to 246.1%(18)
US avg: 6.7%
25 to 3414.7%(43)
US avg: 13.5%
35 to 4411.3%(33)
US avg: 12.7%
45 to 5415%(44)
US avg: 12.3%
55 to 6410.2%(30)
US avg: 13.1%
65 to 7410.2%(30)
US avg: 10%
75 to 846.5%(19)
US avg: 4.9%
85 and over2.4%(7)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$49,750
−28%inflation adjusted, since 2000
from $46,250 in 2000
US average: $66,278
1990 – 2024
Per capita income
$24,151
+15%since 2000
from $20,920 in 2000
US average: $35,364
Households earning $100K+
27.1%
+3.0 ptssince 2009
from 24.1% in 2009
US average: 43.9%
Poverty rate
7.9%
+3.2 ptssince 2000
from 4.7% in 2000
US average: 12.8%
Workforce by industry, 2020
Retail trade20.5%
US avg: 10%
Information15.3%
US avg: 11.1%
Other services10.8%
US avg: 6.6%
Wholesale trade9.1%
US avg: 6.7%
Public administration6.3%
US avg: 4.7%
Finance & insurance5.7%
US avg: 5.5%
Professional, scientific, technical3.4%
US avg: 4.7%
Education & health services2.3%
US avg: 0.8%
Transportation & warehousing1.1%
US avg: 2.5%
Agriculture, forestry, fishing0%
US avg: 1.7%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.5%
Arts, entertainment, food0%
US avg: 2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$103,300
−13%inflation adjusted, since 2000
from $79,300 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$806
+89%inflation adjusted, since 2000
from $283 in 2000
US average: $1,124
Owner-occupied
75.6%
−7.7 ptssince 2000
from 83.3% in 2000
24.4% rent
Afford Score
2.1
+12%since 2009
from 1.9 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
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%
2020
White, non-Hispanic93.9%(275)
Black0.3%(1)
Hispanic / Latino1.7%(5)
Asian0%(0)
Other8.2%(24)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Ancestry
German52.3%(185)
Irish13%(46)
Norwegian7.9%(28)
American7.3%(26)
Swiss4.2%(15)
French4%(14)
Dutch2.8%(10)
Italian2.3%(8)
Scottish2.3%(8)
English1.7%(6)
British1.4%(5)
+ 2 more ancestry groups with data
Portuguese0.6%(2)
Swedish0.6%(2)
RANKED:Largest German population · Largest Irish population · Largest Norwegian population · Largest American population · Largest Swiss population
Section 05

Education

Bachelor's degree or higher
12.4%
+5.9 ptssince 2000
from 6.5% in 2000
US average: 32.9%
High school or higher
96.8%
+16.9 ptssince 2000
from 79.9% in 2000
US average: 88.5%
Graduate degree
7.8%
+4.6 ptssince 2000
from 3.3% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
26.1 min
+69%since 2000
from 15.5 min in 2000
US average: 26.9
Drive alone to work
85.5%
−4.8 ptssince 2009
from 90.4% in 2009
US average: 75.1%
No vehicle available
8.5%
+2.3 ptssince 2009
from 6.2% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
2.8%
−11.0 ptssince 2011
from 13.7% in 2011
US average: 5.4%
Labor force participation
73.0%
−2.5 ptssince 2011
from 75.5% in 2011
US average: 63.4%
Management & professional
23.9%
−25.4 ptssince 2009
from 49.2% in 2009
US average: 39.3%
Section 08

People & community

Male
47.5%
−3.6 ptssince 2009
from 51.1% in 2009
Female
52.5%
+3.6 ptssince 2009
from 48.9% in 2009
Foreign born
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 13.5%
Uninsured
2.3%
−85.9 ptssince 2013
from 88.2% in 2013
US average: 8.8%
Marital status (2024)
Men 15+
Never married40.3%(58)
Married46.5%(67)
Widowed2.8%(4)
Divorced10.4%(15)
Women 15+
Never married30.8%(45)
Married42.5%(62)
Widowed12.3%(18)
Divorced14.4%(21)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

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Places similar to Rock City
Head to head

Compare Rock City to nearby cities

ROCK CITY VS
Freeport
Income$51,723+4%
Home value$92,100−11%
Population23,202+8041%
SEE FULL COMPARISON →
ROCK CITY VS
Monroe
Income$69,334+39%
Home value$195,300+89%
Population10,581+3613%
SEE FULL COMPARISON →
ROCK CITY VS
Machesney Park
Income$75,489+52%
Home value$173,700+68%
Population22,805+7902%
SEE FULL COMPARISON →
ROCK CITY VS
Rockford
Income$54,752+10%
Home value$129,000+25%
Population147,384+51614%
SEE FULL COMPARISON →
Frequently asked

How many people live in Rock City, Illinois?

Rock City, Illinois has about 293 residents according to the 2020 American Community Survey.

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

The typical household in Rock City, Illinois earns about $49,750 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 $103,300, and the typical rent is about $806 a month.

How educated are people in Rock City, Illinois?

About 12.4% 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 7.9% 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 10 residents, a change of about 4 percent over that period.

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

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