County-level Census Bureau data covering income, housing, demographics, education, employment, and more. Counties are the primary administrative division in the U.S. and the most common unit for comparing local conditions across a state.
Data: U.S. Census Bureau, ACS 5-Year Estimates, 2023 (released December 2024).
Quick Facts — Rock County
- What is the median household income in Rock County?
- The median household income in Rock County is $108,200 (U.S. Census Bureau ACS 5-Year Estimates, 2023).
- What is the poverty rate in Rock County?
- The poverty rate in Rock County is 1.5% (U.S. Census Bureau ACS 2023).
- What is the median home value in Rock County?
- $453,300 (U.S. Census Bureau ACS 2023).
- What is the average rent in Rock County?
- The median gross rent in Rock County is $1,240 per month (U.S. Census Bureau ACS 2023).
- What percentage of Rock County residents have a college degree?
- 78.0% of adults in Rock County hold a bachelor's degree or higher (U.S. Census Bureau ACS 2023).
Population
27,470
Median Income
$108,200
Median Home Value
$453,300
Poverty Rate
1.5%
Unemployment (ACS 2023)
3.6%
Median Age
34.0 yrs
Since 2019
Median Income:
+$15,268 (+16.4%)
Home Value:
+$103,500 (+29.6%)
Poverty Rate:
+0.1 pp (+7.1%)
Bachelor's+:
+2.3 pp (+3%)
Unemployment:
-0.2 pp (-5.3%)
Demographics
Total Population
27,470
Median Age
34.0
Female
52.8%
Race & Ethnicity
Hispanic or Latino 5.0%
White (non-Hisp.) 82.5%
Black 3.2%
Asian 4.1%
Two or More 7.3%
Other 0.8%
Asian Subgroups (% of total pop.)
Indian
0.9%
Chinese
0.9%
Korean
0.8%
Vietnamese
0.2%
Japanese
0.2%
Filipino
0.1%
Hispanic Subgroups (% of total pop.)
Mexican
2.2%
Puerto Rican
0.3%
Cuban
0.2%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Income & Poverty
Median Household Income
$108,200
±$8,335
+$32,530 vs. state
Per Capita Income
$164,020
Median Family Income
$179,742
Poverty Rate
1.5%
-5.1 pp vs. state
Child Poverty Rate
0.9%
Working-Age Poverty Rate
—
SNAP Recipients
2.3%
Social Security Income
—
Retirement Income
24.1%
Household Income Distribution
< $10k
3.9%
$10–15k
0.6%
$15–25k
3.5%
$25–35k
3.5%
$35–50k
7.1%
$50–75k
16.8%
$75–100k
11.2%
$100–150k
16.4%
$150–200k
11.3%
$200k+
25.7%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Housing
Total Housing Units
12,045
Owner-Occupied
67.3%
Renter-Occupied
32.7%
Vacancy Rate
5.2%
Median Home Value
$453,300
+$205,900 vs. state
Median Gross Rent
$1,240
Owner Cost Burden (30%+)
14.4%
Renter Cost Burden (30%+)
32.8%
Home Value Distribution
< $50k
1.3%
$50–100k
0.8%
$100–200k
3.2%
$200–300k
9.4%
$300–500k
42.4%
$500k–$1M
36.8%
$1M+
4.4%
Gross Rent Distribution
< $500
0.4%
$500–1k
12.7%
$1–1.5k
57.8%
$1.5–2k
14.1%
$2–2.5k
11.4%
$2.5–3.5k
1.5%
$3.5k+
2.1%
Vehicle Availability
No vehicle
5.6%
1 vehicle
43.7%
2 vehicles
36.3%
3+
14.4%
Housing Type
Single-fam. det.
60.8%
Single-fam. att.
2.4%
2–4 units
6.2%
5–19 units
5.9%
20+ units
11.0%
Mobile home
0.3%
Housing Age
Pre-1940
72.0%
1940–1969
5.8%
1970–1999
3.4%
2000–2009
1.4%
2010+
2.0%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Education
High School or Higher
98.5%
Bachelor's or Higher
78.0%
+45.2 pp vs. state
Graduate Degree
39.4%
Some College / Associate
8.6%
Less Than High School
0.2%
Enrolled in School
—
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Employment
Labor Force Participation
72.2%
Unemployment Rate
3.6%
+0.3 pp vs. state
Work from Home
27.0%
Self-Employed
5.1%
Government Workers
14.2%
Private For-Profit
80.6%
Industry
Edu/Health
35.3%
Prof. Services
14.1%
Manufacturing
9.7%
Arts/Entmt.
8.5%
Finance
7.6%
Retail
6.6%
Public Admin
4.0%
Information
2.9%
Construction
2.6%
Transportation
2.6%
Wholesale
2.2%
Agriculture
0.3%
Occupation
Management
63.8%
Sales
15.5%
Food Prep
13.4%
Production
5.6%
Construction
1.8%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Commute
Median Travel Time
18.7 min
Drove Alone
52.4%
Carpool
4.2%
Public Transit
3.8%
Work from Home
27.0%
Walked
9.6%
Bicycle
—
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Households & Families
Total Households
11,423
Avg. Household Size
2.00
Avg. Family Size
—
Married-Couple Households
43.5%
Single-Mother Households
—
Single-Father Households
—
Living Alone
—
Households with Children
17.1%
Multigenerational
—
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Age Distribution
Under 5
3.9%
5–9
4.4%
10–14
4.0%
15–19
11.2%
20–24
12.2%
25–34
14.8%
35–44
12.2%
45–54
10.4%
55–64
7.3%
65–74
5.1%
75–84
9.7%
85+
4.0%
Under 18: 15.8%
Working age (18–64): 84.2%
65 and over: 14.6%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Social Characteristics
Immigration
Foreign Born
4.4%
Naturalized Citizen
56.3%
Speaks English Less Than Very Well
1.0%
Foreign-Born Origin
Asia
44.1%
Europe
20.9%
Latin America
13.3%
Africa
13.3%
Veterans & Disability
Veteran
2.6%
With a Disability
8.1%
Cognitive Difficulty
—
Ambulatory Difficulty
—
Health Insurance
Insured
98.5%
Uninsured
1.5%
Employer Insurance
—
Medicaid
—
Medicare
—
Technology & Mobility
Broadband Internet
95.4%
Has a Computer
98.0%
Same House 1 Year Ago
79.2%
Moved from Abroad
0.6%
Source: U.S. Census Bureau, ACS 5-Year Estimates, 2023
Compare Rock County
Compare to another county →Where People Move From (IRS Migration Data)
Top origins of people who moved to Rock County in 2023, by number of tax returns filed (IRS SOI Migration Data).
| Origin | Tax Returns | People (est.) |
|---|---|---|
| Dane County | 776 | 1,210 |
| Winnebago County | 424 | 681 |
| Other flows - South | 330 | 546 |
| Other flows - Midwest | 323 | 522 |
| Walworth County | 243 | 405 |
| Other flows - West | 223 | 366 |
| Jefferson County | 194 | 320 |
| Green County | 126 | 211 |
| Milwaukee County | 99 | 164 |
| Cook County | 93 | 164 |