Where does this demographic data come from?

All demographic data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates, which samples about 3.5 million households annually. The 5-year estimates provide the most reliable data for small geographies like municipalities.

What is the difference between Census data and ACS data?

The decennial Census (conducted every 10 years) is a full population count focusing on basic demographics. The ACS is an ongoing survey that collects detailed data on income, education, housing, commute patterns, and more. ACS data is updated annually but represents averages over a 5-year period.

How accurate is this data for small towns?

For smaller municipalities, ACS estimates have wider margins of error because fewer residents are sampled. The 5-year estimates reduce this uncertainty by averaging over a longer period. For towns under 5,000 people, treat specific numbers as approximations rather than precise counts.

Cottage Grove, WI Population, Income & Demographics 2026

CSAMadison-Janesville-Beloit MSAMadison#3/57 Income

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Demographics — 2024 ACS 5-Year Estimatesi

Census

Populationi

8,513

Median Agei

37.5

Race & Ethnicityi

White

84.8%7,220

Asian

6.1%519

Hispanic/Latino

5%425

Two or More

2.5%215

Black

1.6%134

Educational Attainment (Age 25+)i

GED/Alternative

1.5%90

High School Diploma

12.8%757

Some College (<1 yr)

4.5%265

Some College (1+ yr)

8.2%485

Associate's Degree

11.3%666

Bachelor's Degree

37.2%2,200

Master's Degree

14.9%880

Professional Degree

4.1%242

Doctorate

4.3%253

HS or Higher

98.7%

BA or Higher

60.4%

Graduate+

23.2%

Housingi

Median Home Valuei

$449,700

Median Renti

$1,531

Tenure

Owner-Occupied

69.9%2,482

Renter-Occupied

30.1%1,067

Total Units

3,585

Homeownership

69.9%

Vacancy Rate

Home Values

$150K–$200K

1.6%39

$200K–$300K

9.2%229

$300K–$500K

57.8%1,434

$500K–$1M

30.4%755

$1M+

1%25

Economyi

Median Household Incomei

$139,313

Mean Household Incomei

$143,434

Per Capita Incomei

$58,531

Poverty Ratei

3.7%

Unemploymenti

0.9%

Labor Forcei

5,313

Household Income Distribution

Under $10K

2%70

$10K–$15K

0.4%13

$15K–$20K

1.1%40

$25K–$30K

1.4%49

$30K–$35K

0.8%29

$35K–$40K

2.9%104

$40K–$45K

2.1%76

$50K–$60K

5.2%184

$60K–$75K

6.3%224

$75K–$100K

14.8%525

$100K–$125K

5.6%198

$125K–$150K

14.8%524

$150K–$200K

24.1%854

$200K+

18.6%659

Federally Subsidized Housingi

HUD

The federal government helps low-income families, seniors, and people with disabilities afford housing through several programs. Residents typically pay about 30% of their income toward rent, with the government covering the rest. This data shows how many households in this community receive that assistance.

Subsidized Homesi

Residentsi

108

Programs in this community

Housing Choice Vouchers1 homes

Rental vouchers (Section 8) that help tenants pay for private-market housing

Ancestry & Heritage

Self-reported ancestry groups. Residents may report multiple ancestries, so totals may exceed 100%.

Foreign-Born Populationi

Foreign-Borni

5126%

By Region

Top Countries

India

136

China

Canada

Germany

Philippines

Mexico

Commute & Transportationi

Workersi

5,240

Avg. Commutei

24.8 min

How People Get to Work

Travel Time to Work

Workforce

Total Employed

5,267

Occupations

Industries

Social Characteristicsi

Marital Status (15+)i

Veteransi

489(7.5% of civilian adults)

Health Insurancei

99%Insured

1%Uninsured