Rock City

Population: 378
Median household income: $70,000
Median home value: $124,000

Rock City, a community in Stephenson County, Illinois, has 378 residents. The median household income of $70,000 is above the Stephenson County median ($61,943).

Between 2019 and 2023, Rock City's population grew 17.0% from 323 to 378, while its median home value rose 25.1% from $99,100 to $124,000.

Households average 2.91 people. The median gross rent is $845.

Demographics

ACS 2019–2023

Population: 378
Median age: 32.2 yrs
Median household income: $70,000
Median home value: $124,000
Median gross rent: $845
Housing units: 134
Homeownership rate: 79.2%
Bachelor's degree or higher: 12.9%
Unemployment rate: 3.7%

Trends

ACS 5-year · 2019–2023

Population

323378

Median household income

$55,000$70,000

Median home value

$99,100$124,000

Median gross rent

$725$845

Year	Population	Median household income	Median home value	Median gross rent
2019	323	$55,000	$99,100	$725
2020	354	$49,750	$103,300	$806
2021	315	$54,688	$110,200	$725
2022	338	$57,083	$119,200	$775
2023	378	$70,000	$124,000	$845

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 53.4%

5 to 1729.9%

18 to 2411.4%

25 to 346.9%

35 to 4412.2%

45 to 5411.6%

55 to 6411.1%

65 to 748.5%

75 and over5.0%

	Count	Share
Under 5	13	3.4%
5 to 17	113	29.9%
18 to 24	43	11.4%
25 to 34	26	6.9%
35 to 44	46	12.2%
45 to 54	44	11.6%
55 to 64	42	11.1%
65 to 74	32	8.5%
75 and over	19	5.0%

Race & ethnicity

	Count	Share
White (non-Hispanic)	283	74.9%
Black or African American	0	0.0%
American Indian & Alaska Native	0	0.0%
Asian	0	0.0%
Native Hawaiian & Pacific Islander	0	0.0%
Some other race	0	0.0%
Two or more races	9	2.4%
Hispanic or Latino (any race)	86	22.8%

Educational attainment (age 25+)

No high school diploma6.2%

High school graduate39.7%

Some college or associate's41.1%

Bachelor's degree8.1%

Graduate or professional degree4.8%

	Count	Share
No high school diploma	13	6.2%
High school graduate	83	39.7%
Some college or associate's	86	41.1%
Bachelor's degree	17	8.1%
Graduate or professional degree	10	4.8%

Commute to work

Mean travel time to work: 30 min

Drove alone78.5%

Carpooled12.7%

Public transit0.0%

Walked2.2%

Bicycle0.0%

Worked from home6.1%

Other means0.6%

How workers get to work

	Count	Share
Drove alone	142	78.5%
Carpooled	23	12.7%
Public transit	0	0.0%
Walked	4	2.2%
Bicycle	0	0.0%
Worked from home	11	6.1%
Other means	1	0.6%

Travel time

	Count	Share
Under 15 min	36	21.2%
15 to 29 min	60	35.3%
30 to 44 min	32	18.8%
45 to 59 min	22	12.9%
60+ min	20	11.8%

Households

Average household size: 2.91
Poverty rate: 4.5% (17 of 378)

	Count	Share
Family households	95	73.1%
Nonfamily households	35	26.9%

Housing

Median year structure built: 1957

Occupancy

	Count	Share
Occupied	130	97.0%
Vacant	4	3.0%

Tenure (of occupied units)

	Count	Share
Owner-occupied	103	79.2%
Renter-occupied	27	20.8%

1-unit, detached82.8%

1-unit, attached0.0%

2 to 4 units6.7%

5 to 19 units7.5%

20 or more units0.0%

Mobile home & other3.0%

Units in structure

	Count	Share
1-unit, detached	111	82.8%
1-unit, attached	0	0.0%
2 to 4 units	9	6.7%
5 to 19 units	10	7.5%
20 or more units	0	0.0%
Mobile home & other	4	3.0%

Geography

Place GEOID: 1764837
Type (LSAD): 47
Land area: 0.14 sq mi
Water area: 0 sq mi
Center point: 42.4130, -89.4710