ZipCodesToGo
Wisconsin ZIP Codes
Green County
Brooklyn, WI
53521
53521 ZIP Code — Brooklyn, WI
Green County, Wisconsin
ZIP code 53521 is located in
Brooklyn ,
Wisconsin ,
within Green County .
It covers approximately 59.68 square miles and serves a population of
3,587 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 608 .
About ZIP code 53521
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $346,800. Owner-occupancy is high at 86%, well above the national average.
Median household income is $97,321. The poverty rate of 3% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.
Educational attainment is near the national average, with 36% of residents holding a bachelor's degree or higher.
53521 ZIP code map
View map of 53521
Cities in ZIP code 53521
Below are the cities the US Postal Service accepts for ZIP code 53521. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
3,587
Population density
60 / sq mi
State FIPS
55
County FIPS
045
Geography
Land area
59.68 sq mi
Water area
0.15 sq mi
Latitude
42.8424
Longitude
-89.3802
Timezone
Central (CT)
Area code
608
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
28.1%
37.7%
39.4%
$50k – $100k
31.8%
35.3%
33.0%
$100k – $200k
32.4%
22.5%
22.4%
Over $200k
7.7%
4.5%
5.2%
Demographics & statistics
$97,321
Median household income
$346,800
Median home value
$1,139
Median monthly rent
36.2%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 813 22.7%
18 and over 2,774 77.3%
65 and over 522 14.6%
Median age 42.3 years
Race & ethnicity
Black or African American
1.1%
American Indian / Alaska Native
0.1%
Group Count %
White 3,268 87.7%
Two or more races 206 5.5%
Hispanic or Latino 139 3.7%
Other race 56 1.5%
Black or African American 42 1.1%
Asian 12 0.3%
American Indian / Alaska Native 3 0.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
28.1%
37.7%
39.4%
$50k – $100k
31.8%
35.3%
33.0%
$100k – $200k
32.4%
22.5%
22.4%
Over $200k
7.7%
4.5%
5.2%
Range % of households
Under $10k 1.0%
$10k–$15k 0.3%
$15k–$25k 5.3%
$25k–$35k 2.7%
$35k–$50k 8.9%
$50k–$75k 18.2%
$75k–$100k 15.5%
$100k–$150k 27.4%
$150k–$200k 11.5%
$200k+ 9.1%
Median income $97,321
Housing
Housing overview
Metric Value
Median home value $346,800
Median rent / month $1,139
Owner occupied 86.1%
Renter occupied 13.9%
Vacant 3.3%
Single-family detached 89.3%
Large apartment buildings 0.0%
Mobile homes 0.3%
Median rooms 6.4
Avg household size (owned) 2.61
Year built
Era %
2020 or later 0.2%
2010–2019 7.1%
2000–2009 17.3%
1990–1999 19.5%
1980–1989 11.3%
1970–1979 10.5%
1960–1969 3.2%
1950–1959 3.7%
1940–1949 1.5%
1939 or earlier 25.8%
Bedrooms
Size % of units
No bedroom (studio) 0.2%
1 bedroom 3.2%
2 bedrooms 16.6%
3 bedrooms 56.2%
4 bedrooms 18.0%
5+ bedrooms 5.8%
Vehicles per household
Vehicles % of households
No vehicle 0.8%
1 vehicle 16.4%
2 vehicles 48.3%
3 or more 34.5%
Heating fuel
Fuel type %
Utility gas 28.6%
Electricity 12.9%
Propane / LP gas 47.9%
Fuel oil 4.9%
Wood 4.8%
Households & families
Household type Count %
Married-couple family 953 67.0%
Cohabiting couple 100 7.0%
Male householder, no spouse 222 15.6%
Female householder, no spouse 147 10.3%
Households with children under 18 443 31.2%
Households with seniors (65+) 367 25.8%
Average household size 2.52
Marital status
Status Male Female
Never married 26.3% 25.4%
Married 62.7% 65.2%
Separated 1.1% 0.5%
Widowed 1.5% 3.6%
Divorced 8.5% 5.3%
Education
Some college, no degree
14.8%
Graduate / professional
12.3%
Metric %
HS diploma or higher 96.5%
Bachelor's or higher 36.2%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 33 3.9%
Kindergarten 42 5.0%
Elementary school 426 50.5%
High school 182 21.6%
College / grad school 161 19.1%
Employment
Industry of employment
Education & healthcare
24.0%
Professional & management
9.8%
Finance & real estate
7.9%
Public administration
5.2%
Agriculture & mining
5.0%
Arts, food & hospitality
3.3%
Transportation & utilities
2.6%
Occupation
Category %
Management, business & arts 44.4%
Service 12.0%
Sales & office 16.1%
Natural resources & construction 15.0%
Production & transportation 12.5%
Employment type
Type %
Private sector 76.5%
Government 16.5%
Self-employed 6.9%
Unpaid family workers 0.1%
Commute
Method %
Drive alone 80.5%
Carpool 6.8%
Public transit 0.0%
Walk 0.6%
Work from home 11.4%
Other means 0.6%
Avg commute (minutes) 27.0
Poverty
Married-couple families
1.7%
Female-led households
7.1%
Income support
Source % of households
Social Security 26.4%
Retirement income 27.0%
Supplemental Security 2.8%
Cash public assistance 0.9%
Food stamps / SNAP 2.7%
Health indicators
Condition %
Obesity 29.9%
High blood pressure 27.4%
High cholesterol 31.5%
Diabetes 7.2%
Heart disease 4.5%
Stroke 2.1%
Asthma 9.2%
Arthritis 20.0%
Kidney disease 2.2%
Pulmonary disease 4.6%
Cancer 6.1%
Behavior / access %
Smoking 14.9%
Binge drinking 26.4%
No physical activity 16.0%
Less than 7 hrs sleep 27.6%
Depression 20.3%
Fair or poor health 8.9%
Poor mental health 12.5%
Poor physical health 8.1%
No health insurance 8.1%
Visited doctor (checkup) 70.8%
Visited dentist 75.5%
Cholesterol screening 89.1%
Teeth loss 8.1%
Veterans & disability
Veterans Count %
Civilian veterans 186 6.7%
Disability %
Any disability 9.6%
Under 18 4.9%
18–64 years 7.3%
65 and over 26.8%
Health insurance coverage
Type %
Private insurance 88.2%
Public insurance 23.1%
No insurance 2.9%
Uninsured under 19 2.5%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 3,410 95.1%
Spanish 28 0.8%
Other Indo-European 28 0.8%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 3,493 97.4%
Born in same state 3,483 97.1%
Born in different state 2,790 77.8%
Foreign born 10 0.3%
Naturalized citizen 94 2.6%
Not a US citizen 39 41.5%
Ancestry
Ancestry Count %
French 502 14%
Polish 477 13.3%
Italian 409 11.4%
Arab 207 5.8%
Ancestry Count %
Dutch 46 1.3%
German 27 0.8%
English 20 0.6%
Irish 7 0.2%
Technology access
Metric % of households
Computer access 39.6%
Internet access 95.6%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 53521
What city is ZIP code 53521 in?
ZIP code 53521 is primarily assigned to Brooklyn, Wisconsin.
What county is ZIP code 53521 in?
ZIP code 53521 falls within Green County, Wisconsin.
Is ZIP code 53521 mostly owner-occupied?
86% of occupied units in ZIP code 53521 are owner-occupied, well above the national average.
What is the typical home value in ZIP code 53521?
The median home value in ZIP code 53521 is $346,800.
What is the population of ZIP code 53521?
ZIP code 53521 has an estimated population of 3,587 residents, with a density of 60 people per square mile.
What is the median household income in ZIP code 53521?
The median household income in ZIP code 53521 is $97,321, above the national median of ~$75,000.
What timezone is ZIP code 53521 in?
ZIP code 53521 observes the CST timezone.
Need the complete ZIP code database?
Download all 42,000+ US ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →