Rock County, WI

County

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2024 Population

164,350

US Senator

Ron Johnson

Republican Party

US Senator

Tammy Baldwin

Democratic Party

2024 Median Age

40.3

0.499% 1-year increase

2024 Poverty Rate

9.26%

7.13% 1-year decrease

2024 Median Household Income

$75,673

1.72% 1-year growth

2024 Median Property Value

$231,600

7.27% 1-year growth

2024 Employed Population

82,942

0.915% 1-year growth

About

None of the households in Rock County, WI reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.

97.3% of the residents in Rock County, WI are U.S. citizens.

The largest universities in Rock County, WI are Blackhawk Technical College (814 degrees awarded in 2024), Beloit College (237 degrees), and First Class Cosmetology School (81 degrees).

In 2024, the median property value in Rock County, WI was $231,600, and the homeownership rate was 71.2%.

Most people in Rock County, WI drove alone to work, and the average commute time was 23.8 minutes. The average car ownership in Rock County, WI was 2 cars per household.

Rock County, WI borders Boone County, IL, Winnebago County, IL, Dane County, WI, Green County, WI, Jefferson County, WI, and Walworth County, WI.

United States Wisconsin Janesville-Beloit, WI

Population & Diversity

Rock County, WI is home to a population of 164k people, from which 97.3% are citizens. As of 2024, 4.59% of Rock County, WI residents were born outside of the country (7.55k people).

In 2024, there were 17.3 times more White (Non-Hispanic) residents (131k people) in Rock County, WI than any other race or ethnicity. There were 7.58k Black or African American (Non-Hispanic) and 7.5k Two Races Including Other (Hispanic) residents, the second and third most common ethnic groups.

Population & Diversity

Citizenship

97.3%

2024 Citizenship

97.1%

2023 Citizenship

As of 2024, 97.3% of Rock County, WI residents were US citizens, which is higher than the national average of 93.2%. In 2023, the percentage of US citizens in Rock County, WI was 97.1%, meaning that the rate of citizenship has been increasing.

The following chart shows US citizenship percentages in Rock County, WI compared to that of it's neighboring and parent geographies.

Diversity

Race and Ethnicity

The 3 largest ethnic groups in Rock County, WI

White (Non-Hispanic)
131k ± 649
Black or African American (Non-Hispanic)
7.58k ± 580
Two Races Including Other (Hispanic)
7.5k ± 973

10.1%

Hispanic Population

16.6k people

10.1% of the people in Rock County, WI are hispanic (16.6k people).

The following chart shows the 8 races represented in Rock County, WI as a share of the total population.

Global Diversity

The PUMS dataset is not available at the County level, so we are showing data for Wisconsin.

Most Common Origin

Mexico
90,085 ± 7,313 people
India
22,216 ± 3,653 people
China
14,090 ± 2,911 people

In 2024, the most common birthplace for the foreign-born residents of Wisconsin was Mexico, the natal country of 90,085 Wisconsin residents, followed by India with 22,216 and China with 14,090.

Foreign-Born Population

4.59%

2024 Foreign-Born Population

7.55k people

4.8%

2023 Foreign-Born Population

7.88k people

As of 2024, 4.59% of Rock County, WI residents (7.55k people) were born outside of the United States, which is approximately the same as the national average of 14%. In 2023, the percentage of foreign-born citizens in Rock County, WI was 4.8%, meaning that the rate has been decreasing.

The following chart shows the percentage of foreign-born residents in Rock County, WI compared to that of it's neighboring and parent geographies.

Military

Veterans

Most Common Service Period

Vietnam
2,841 ± 364
Gulf War (2001-)
1,526 ± 347
Gulf War (1990s)
1,430 ± 250

Rock County, WI has a large population of military personnel who served in Vietnam, 1.86 times greater than any other conflict.

The chart shows the distribution of veterans by conflict in Rock County, WI.

Health

94.5% of the population of Rock County, WI has health coverage, with 52.6% on employee plans, 14.5% on Medicaid, 13.1% on Medicare, 13.4% on non-group plans, and 0.931% on military or VA plans.

Primary care physicians in Rock County, WI see 1,957 patients per year on average, which represents a 0% change from the previous year (1,957 patients). Compare this to dentists who see 1402 patients per year, and mental health providers who see 438 patients per year.

By gender, of the total number of insured persons, 49.8% were men and 50.2% were women.

Coverage

Patient to Clinician Ratios

1,957 to 1

Patient to Primary Care Physician Ratio in Rock County, WI

Primary care physicians in Rock County, WI see an average of 1,957 patients per year. This represents a 0% change from the previous year (1,957 patients).

The following chart shows how the number of patients seen by primary care physicians has been changing over time in Rock County, WI in comparison to its neighboring geographies.

Health Care Diversity

In 2024, insured persons according to age ranges were distributed in 23.9% under 18 years, 19.4% between 18 and 34 years, 39.1% between 35 and 64 years, and 17.5% over 64 years.

By gender, of the total number of insured persons, 49.8% were men and 50.2% were women.

The following chart shows the number of people with health coverage by gender.

Uninsured People

5.51%

Uninsured

52.6%

Employer Coverage

14.5%

Medicaid

13.1%

Medicare

13.4%

Non-Group

0.931%

Military or VA

Between 2023 and 2024, the percent of uninsured citizens in Rock County, WI grew by 5.32% from 5.23% to 5.51%.

The following chart shows how the percent of uninsured individuals in Rock County, WI changed over time compared with the percent of individuals enrolled in various types of health insurance.

Health Indicators

Health Outcomes

Indicator

In 2025, the average number of mentally unhealthy days reported in past 30 days (age-adjusted) was 5.16 in Rock County, WI.

The graphic shows the trend of the indicator in Rock County, WI.

Health Behaviors

Indicator

In 2025, the percentage of the adult population (age 18 and older) that reports a body mass index (BMI) greater than or equal to 30 kg/m2 (age-adjusted) was 38.1% in Rock County, WI.

The graphic shows the trend of the indicator in Rock County, WI.

Clinical Care

Indicator

In 2025, the percentage of population under age 65 without health insurance was 6.63% in Rock County, WI.

The graphic shows the trend of the indicator in Rock County, WI.

Economy

The economy of Rock County, WI employs 82.9k people. In 2024, the largest industries in Rock County, WI were Manufacturing (15,843 people), Health Care & Social Assistance (11,155 people), and Retail Trade (10,815 people), and the highest paying industries were Utilities ($85,725), Mining, Quarrying, & Oil & Gas Extraction ($78,929), and Professional, Scientific, & Technical Services ($71,905).

Employment

Occupations

82.9k

2024 Value

± 2,184

0.915%

1 Year growth

± 3.64%

From 2023 to 2024, employment in Rock County, WI grew at a rate of 0.915%, from 82.2k employees to 82.9k employees.

The most common job groups, by number of people living in Rock County, WI, are Office & Administrative Support Occupations (9,580 people), Production Occupations (8,928 people), and Management Occupations (7,479 people). This chart illustrates the share breakdown of the primary jobs held by residents of Rock County, WI.

Unemployment Insurance Claims

Data is only available at the state level. Showing data for Wisconsin.

This chart shows weekly unemployment insurance claims in Wisconsin (not-seasonally adjusted) compared with the four states with the most similar impact.

The most recent data point uses Advance State Claims data, which can be revised in subsequent weeks.

Industries

Employment by Industries

82.9k

2024 Value

± 2,184

0.915%

1 Year growth

± 3.64%

From 2023 to 2024, employment in Rock County, WI grew at a rate of 0.915%, from 82.2k employees to 82.9k employees.

The most common employment sectors for those who live in Rock County, WI, are Manufacturing (15,843 people), Health Care & Social Assistance (11,155 people), and Retail Trade (10,815 people). This chart shows the share breakdown of the primary industries for residents of Rock County, WI, though some of these residents may live in Rock County, WI and work somewhere else. Census data is tagged to a residential address, not a work address.

Median Earnings by Industry

$53,497

Median earning men ± $1,516

$39,864

Median earning women ± $1,376

The industries with the best median earnings for men in 2024 are Public Administration ($73,517), Transportation & Warehousing, & Utilities ($65,869), and Wholesale Trade ($63,011).

The industries with the best median earnings for women in 2024 are Construction ($58,125), Public Administration ($53,119), and Finance & Insurance, & Real Estate & Rental & Leasing ($52,177).

Employment by Industry Sector

Data is only available at the state level. Showing data for Wisconsin.

Y-Axis

1.6%

Year-over-year growth

Employment change between February 2022 and February 2023

As of February 2023, there are 2.95M people employed in Wisconsin. This represents a 1.6% increase in employment when compared to February 2022.

Right after the beginning of the COVID-19 pandemic, during April 2020, a general dip can be seen across industry sectors, resulting in an overall decline in employment by 13.3%.

The following chart shows monthly employment numbers for each industry sector in Wisconsin.

Establishments by Size

The industries with the most establishments

244
Other Services (except Public Administration)
242
Construction
184
Retail Trade

The visualization shows the distribution of establishments by industry and by size according to the number of employees.

The visualization shows the number of establishments and its share across establishment sizes.

Payroll by Industry Sector

The industries with the highest total annual payroll

$801k
Manufacturing
$552k
Health Care and Social Assistance
$449k
Management of Companies and Enterprises

The chart shows the total annual payroll and the average annual payroll by industry.

Civics

In the 2024 presidential election, the popular vote in Wisconsin went to Donald J. Trump with 49.6% of the vote. The runner-up was Kamala Harris (48.7%), followed by Robert Kennedy (0.518%).

Ron Johnson and Tammy Baldwin are the senators currently representing the state of Wisconsin. In the United States, senators are elected to 6-year terms with the terms for individual senators staggered.

Wisconsin is currently represented by 8 members in the U.S. house, and members of the House of Representives are elected to 2-year terms.

Presidential Elections

Presidential Popular Vote Over Time

Voting results are not available for Rock County, WI. Showing the available data for Wisconsin.

2024 Election Results

Donald J. Trump (49.6%)
Republican Party
Kamala Harris (48.7%)
Democratic Party
Robert Kennedy (0.518%)
Independent Party

In the 2024 presidential election, the popular vote in Wisconsin went to Donald J. Trump with 49.6% of the vote. The runner-up was Kamala Harris (48.7%), followed by Robert Kennedy (0.518%).

The following chart shows the popular vote results in Wisconsin for each registered party from 1976 to 2024.

Senator Elections

US Senators from Wisconsin

Senatorial voting results are only available at the state level. Showing data for Wisconsin.

Ron Johnson

Senator from Wisconsin

Assumed office on January 3, 2011

Tammy Baldwin

Senator from Wisconsin

Assumed office on January 3, 2013

Ron Johnson and Tammy Baldwin are the senators currently representing Wisconsin.

In the United States, senators are elected to 6-year terms with the terms for individual senators staggered.

The following chart shows elected senators in Wisconsin over time, excluding special elections, colored by their political party.

Education

In 2024, universities in Rock County, WI awarded 1,200 degrees. The student population of Rock County, WI in 2024 is skewed towards women, with 1,548 male students and 2,461 female students.

Most students graduating from Universities in Rock County, WI are White (777 and 67.2%), Hispanic or Latino (180 and 15.6%), Black or African American (95 and 8.21%), and Two or More Races (44 and 3.8%).

The largest universities in Rock County, WI by number of degrees awarded are Blackhawk Technical College (814 and 67.8%), Beloit College (237 and 19.8%), and First Class Cosmetology School (81 and 6.75%).

The most popular majors in Rock County, WI are Nursing Assistant & Patient Care Assistant (257 and 21.4%), Emergency Medical Technician (EMT Paramedic) (74 and 6.17%), and Aesthetician & Skin Care Specialist (73 and 6.08%).

The median tuition cost for private four year colleges is $60,364.

Admissions & Enrollments

Applicants, Admissions & Enrolled

University

Measure

In 2024 in Rock County, WI, the percentage of applicants admitted was 63%, while the percentage of admitted who enrolled was 9.22%. The number of students enrolled in 2024 was 4,009 (38.6% men and 61.4% women).

The line chart shows the evolution of the percentage of applicants admitted, admitted who enrolled or the number of students enrolled according to the option selected in the upper button.

Enrollments by Gender and Races

Universities

In 2024 there were 4,009 students enrolled in Rock County, WI, 38.6% men and 61.4% women.

By race, the largest number of students enrolled was concentrated in White with 2,555 records, of which 62% were women and 38% men.

Completions

Concentrations

Most Common

Nursing Assistant & Patient Care Assistant
257 degrees awarded
Emergency Medical Technician (EMT Paramedic)
72 degrees awarded

In 2024, the most common concentation for Certificate of less than 1 academic year recipients in Rock County, WI was Nursing Assistant & Patient Care Assistant with 257 degrees awarded.

This visualization illustrates the percentage of students graduating with a Certificate of less than 1 academic year from schools in Rock County, WI according to their major.

Universities

Gender

Race

Largest Universities by degrees awarded

Blackhawk Technical College
814 degrees awarded
Beloit College
237 degrees awarded
First Class Cosmetology School
81 degrees awarded

In 2024, the institution with the largest number of graduating students was Blackhawk Technical College with 814 degrees awarded.

Student Diversity

University

In 2024, 345 men were awarded degrees from institutions in Rock County, WI, which is 0.404 times less than the 855 female students who received degrees in the same year.

In 2024, the most common race/ethnicity group awarded degrees at institutions was White students. These 777 degrees mean that there were 4.32 times more degrees awarded to White students then the next closest race/ethnicity group, Hispanic or Latino, with 180 degrees awarded.

Awarded Degrees over Time

The graph shows the evolution of awarded degrees by degrees. Under the paragraphs, the average number of awarded degrees by university in each degree is shown.

Tuition

Average Net Price by Sector

Universities

Private not-for-profit, 4-year or above ($60,364) is the sector with the highest median state tuition in 2024.

Public, 2-year ($636) is the sector with the highest median state fee in 2024.

Public, 2-year ($2,062) is the sector with the highest average net price of books and supplies.

The graph shows the average net price by sector and year.

Housing & Living

The median property value in Rock County, WI was $231,600 in 2024, which is 0.696 times smaller than the national average of $332,700. Between 2023 and 2024 the median property value increased from $215,900 to $231,600, a 7.27% increase. The homeownership rate in Rock County, WI is 71.2%, which is higher than the national average of 65.2%.

People in Rock County, WI have an average commute time of 23.8 minutes, and they drove alone to work. Car ownership in Rock County, WI is approximately the same as the national average, with an average of 2 cars per household.

In 2025, 11.4% of the population was living with severe housing problems in Rock County, WI. From 2014 to 2025, the indicator declined 2.89%.

Housing

Property

$231,600

Median Property Value 2024

±$3,637

$47,819

Median Property Taxes

±$1,384

The following chart display owner-occupied housing units distributed between a series of property tax buckets compared to the national averages for each bucket. In Rock County, WI the largest share of households pay taxes in the $3k+ range.

The chart underneath the paragraph shows the property taxes in Rock County, WI compared to it's parent and neighbor geographies.

Rent vs Own

71.2%

Homeownership

2024

63.7%

Homeowners with Mortgage

2024

In 2024, 71.2% of the housing units in Rock County, WI were occupied by their owner. This percentage grew from the previous year's rate of 70.6%.

This chart shows the percentage of owner in Rock County, WI compared it's parent and neighboring geographies.

Equity

Household Income

Please note that the buckets used in this visualization were not evenly distributed by ACS when publishing the data.

$75,673

Median Household Income

± $2,128

67.2k

Number of Households

± 1,977

In 2024, the median household income of the 67.2k households in Rock County, WI grew to $75,673 from the previous year's value of $74,390.

The following chart displays the households in Rock County, WI distributed between a series of income buckets compared to the national averages for each bucket. The largest share of households have an income in the $75k - $100k range.

Wage Distribution

The closest comparable wage GINI for Rock County, WI is from Wisconsin.

0.439

2024 Wage GINI in Wisconsin

0.441

2023 Wage GINI in Wisconsin

In 2024, the income inequality in Wisconsin was 0.439 according to the GINI calculation of the wage distribution. Income inequality had a 0.364% decline from 2023 to 2024, which means that wage distribution grew somewhat more even. The GINI for Wisconsin was lower than than the national average of 0.474. In other words, wages are distributed more evenly in Wisconsin in comparison to the national average.

This chart shows the number of workers in Wisconsin across various wage buckets compared to the national average.

Transportation

Commuter Transportation

Most Common Commute in 2024

Drove Alone (80.1%)
Worked At Home (9.23%)
Carpooled (7.22%)

In 2024, 80.1% of workers in Rock County, WI drove alone to work, followed by those who worked at home (9.23%) and those who carpooled to work (7.22%).

The following chart shows the number of households using each mode of transportation over time, using a logarithmic scale on the y-axis to help better show variations in the smaller means of commuting.

Commute Time

23.8 minutes

Average Travel Time

Using averages, employees in Rock County, WI have a shorter commute time (23.8 minutes) than the normal US worker (26.4 minutes). Additionally, 2.45% of the workforce in Rock County, WI have "super commutes" in excess of 90 minutes.

The chart below shows how the median household income in Rock County, WI compares to that of it's neighboring and parent geographies.

Car Ownership

2 cars

Average Number

The following chart displays the households in Rock County, WI distributed between a series of car ownership buckets compared to the national averages for each bucket. The largest share of households in Rock County, WI have 2 cars.

Poverty

Severe Housing Problems

In 2025, 11.4% of the population was living with severe housing problems in Rock County, WI. From 2014 to 2025, the indicator declined 2.89%.

The graph shows the trend of the percentage of the population living with severe housing problems.

Poverty & Diversity

9.26% of the population for whom poverty status is determined in Rock County, WI (15k out of 162k people) live below the poverty line, a number that is lower than the national average of 12.5%. The largest demographic living in poverty are Females 75+, followed by Females 25 - 34 and then Males 55 - 64.

The most common racial or ethnic group living below the poverty line in Rock County, WI is White, followed by Hispanic and Black.

The Census Bureau uses a set of money income thresholds that vary by family size and composition to determine who classifies as impoverished. If a family's total income is less than the family's threshold than that family and every individual in it is considered to be living in poverty.

Children in Poverty

In 2025, 14.9% of the children was living in poverty in Rock County, WI. From 2014 to 2025, the indicator declined 7.7%.

The graph shows the trend of the percentage of the children living in poverty.

Social Needs

Data only available at the state level.

Most prevalent states

California
35,798 individuals
New York
5,087 individuals

In 2017, California had the highest estimated number of chronically homeless individuals in the nation, at 35,798, followed by New York (5,087).

The following map shows the estimated number of chronically homeless individuals by state over multiple years.

Security

Crimes & Accidents

Indicator

In 2022, the number of reported violent crimes offenses per 100,000 population was 231 in Rock County, WI. From 2014 to 2022, the indicator declined 16% per 100,000 population.

The graph shows the trend in the number of reported violent crimes offenses per 100,000 population.