Postal Codes

53121 ZIP Code

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ZIP code 53121 covers Elkhorn, Wisconsin, with a population of about 18,640 and a median household income of $83,635.

Population
18,640163 per square mile
Median age
43.14.4 points above the US average
Median household income
$83,6351.1× the Wisconsin median
Poverty rate
4.3%8.1 points below the US average
Typical home value
$403,574up 24.9% in five years
Median rent
$1,031about the Wisconsin median
Degree or higher
32.6%2.4 points below the US average
Homeownership
73.2%8.2 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
558

Where 53121 is

Elkhorn, Wisconsin — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population18,640
Median age43.1
Family households67.7%
Born outside the US4.6%
Speaks a language other than English at home8.1%
White (non-Hispanic)83.8%
Black (non-Hispanic)0.8%
Asian (non-Hispanic)0.6%
Hispanic or Latino10.9%
Veterans6.4%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$83,635
Income per person$44,566
Poverty rate4.3%
Households on SNAP or cash assistance7.1%

Household income distribution

Under $10k1.8%
$10–15k2.7%
$15–20k1.0%
$20–25k2.7%
$25–30k2.3%
$30–35k3.6%
$35–40k4.3%
$40–45k2.4%
$45–50k2.2%
$50–60k8.4%
$60–75k13.5%
$75–100k15.4%
$100–125k11.5%
$125–150k8.4%
$150–200k9.4%
$200k or more10.4%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed9,610
Mean adjusted gross income$84,518
Returns declaring $200,000 or more5.5%
Returns, under $25k24.6%
Returns, $25k–$50k21.5%
Returns, $50k–$75k15.8%
Returns, $75k–$100k12.0%
Returns, $100k–$200k20.6%
Returns, $200k or more5.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$287,900
Median gross rent$1,031
Rent as a share of household income24.5%
Owner-occupied73.2%
Vacant homes9.3%
Median year built1981

What the homes are

Detached house72.1%
Attached house6.2%
2 to 4 units6%
5 to 19 units11.6%
20 or more units2.6%
Mobile home1.5%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$403,574as of 2026-07
Typical home value, 1 yearup 3.5%
Typical home value, 5 yearsup 24.9%
Typical home value, 10 yearsup 95.5%
Typical asking rent$1,545as of 2026-07
Typical home value since 2000
200020132026$403,574$169,208

$169,208 in 2000 to $403,574 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate1.4%
Bachelor's degree or higher32.6%
High school diploma or higher94.1%
Works from home8.2%
Drives to work alone78.3%
Takes public transport0%
Commutes 45 minutes or more19.1%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity38.2% 4.8 pts above the national average of 33.4%
Diagnosed diabetes10.2% 1.8 pts below the national average of 12%
Currently smokes12.4% 0.8 pts below the national average of 13.2%
High blood pressure31.6% 2.5 pts below the national average of 34.1%
Fair or poor general health15.6% 4.7 pts below the national average of 20.3%
No health insurance (18–64)7.4% 3.9 pts below the national average of 11.3%
Depression21.6% same as the national average of 21.9%
No leisure-time physical activity24.1% 1.3 pts below the national average of 25.4%
Arthritis25.7% 0.6 pts above the national average of 25.1%
Binge drinking20.8% 4.8 pts above the national average of 16%
Taking blood pressure medication77.5% 2.8 pts above the national average of 74.7%
Cancer (non-skin)8.8% 1.1 pts above the national average of 7.7%
Current asthma10.4% same as the national average of 10.4%
Coronary heart disease6.1% same as the national average of 6.2%
Routine check-up in past year77.3% 0.6 pts above the national average of 76.7%
Cholesterol screening87.2% 1.3 pts above the national average of 85.9%
Cognitive disability11.8% 3 pts below the national average of 14.8%
Colorectal screening70.9% 6.6 pts above the national average of 64.3%
COPD5.8% 0.8 pts below the national average of 6.6%
Visited a dentist71.5% 10.2 pts above the national average of 61.3%
Any disability27.4% 3.3 pts below the national average of 30.7%
Lacks emotional support19.8% 5 pts below the national average of 24.8%
Food insecurity9.4% 7.7 pts below the national average of 17.1%
Received food stamps9.1% 5.2 pts below the national average of 14.3%
Hearing disability6.5% same as the national average of 6.7%
High cholesterol34.5% 1.7 pts below the national average of 36.2%
Housing insecurity8.2% 5.6 pts below the national average of 13.8%
Independent living disability6.9% 1.5 pts below the national average of 8.4%
Lacks transport5.6% 3.6 pts below the national average of 9.2%
Loneliness30% 4.4 pts below the national average of 34.4%
Mammography use80.7% 4.8 pts above the national average of 75.9%
Poor mental health (14+ days)14.6% 2.2 pts below the national average of 16.8%
Mobility disability12.1% 1.9 pts below the national average of 14%
Poor physical health (14+ days)12.5% 1 pts below the national average of 13.5%
Self-care disability3% 1 pts below the national average of 4%
Utility shut-off threat4.5% 4.3 pts below the national average of 8.8%
Sleeps under 7 hours31.5% 4.9 pts below the national average of 36.4%
Stroke3% same as the national average of 3.4%
All natural teeth lost7.9% 5.1 pts below the national average of 13%
Vision disability3.8% 1.8 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments558
People employed6,781
Annual payroll$301,850,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 48.4% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 9 census tracts this ZIP code covers
Expected annual loss58.6 out of 100
Community resilience72.6 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Hail90.6Relatively High at its worst in this ZIP code
Drought85Relatively Low at its worst in this ZIP code
Cold wave81.5Relatively High at its worst in this ZIP code
Landslide79.7Relatively Low at its worst in this ZIP code
Tornado78.4Very High at its worst in this ZIP code
Strong wind74.8Relatively High at its worst in this ZIP code
Lightning67.1Relatively High at its worst in this ZIP code
Wildfire60.4Relatively Low at its worst in this ZIP code
River flooding57Relatively High at its worst in this ZIP code
Winter weather48.7Relatively Moderate at its worst in this ZIP code
Heat wave47Relatively Moderate at its worst in this ZIP code
Ice storm31.4Relatively Low at its worst in this ZIP code
Earthquake26.3Relatively Low at its worst in this ZIP code
Hurricane22.1Very Low at its worst in this ZIP code
Compared with Wisconsin and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPWisconsinUnited States
Median household income$83,635$75,670$78,538
Income per person$44,566$42,019$43,289
Poverty rate4.3%10.6%12.4%
Median home value$287,900$247,400$303,400
Median gross rent$1,031$1,045$1,348
Homeownership73.2%67.9%65%
Bachelor's degree or higher32.6%32.8%35%
Unemployment rate1.4%3.3%5.2%
Works from home8.2%11.6%13.5%
Born outside the US4.6%5.1%13.9%
Median age43.140.138.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationDELAVAN WWTP, WI US11.8 km away
Rain in a year37 in

Average high and low by month

January29.2°F / 13.4°F1.56 in rain
February32.6°F / 16°F1.67 in rain
March43.7°F / 24.9°F1.97 in rain
April57°F / 35.7°F3.66 in rain
May68.8°F / 46.9°F4.19 in rain
June79°F / 56.8°F4.96 in rain
July82.9°F / 60.8°F3.79 in rain
August81.1°F / 58.9°F3.87 in rain
September74.2°F / 51.2°F3.74 in rain
October60.8°F / 39.5°F2.89 in rain
November46.2°F / 28.9°F2.61 in rain
December34.5°F / 19.6°F1.83 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket10% of this ZIP code's area
No vehicle and far from a supermarket40% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 6 school districts, so the address decides which one, not the ZIP code.

Elkhorn Area School District68.1% of this ZIP code's land area
East Troy Community School District14.3% of this ZIP code's land area
Delavan-Darien School District7.7% of this ZIP code's land area
Whitewater School District4.2% of this ZIP code's land area
Lake Geneva Joint No. 1 School District2.8% of this ZIP code's land area
Lake Geneva-Genoa City Union High School District2.8% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability15more vulnerable than 15% of US census tracts
Socioeconomic status15more vulnerable than 15% of US census tracts
Household characteristics20more vulnerable than 20% of US census tracts
Racial and ethnic minority status12more vulnerable than 12% of US census tracts
Housing type and transport37more vulnerable than 37% of US census tracts
Walkability5.1 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

53115 Delavan, WI11 km away
53176 Springfield, WI12.9 km away
53191 Williams Bay, WI13.8 km away
53147 Lake Geneva, WI14.6 km away
53120 East Troy, WI16 km away
53148 Lyons, WI16.4 km away
53125 Fontana, WI17.7 km away
53184 Walworth, WI19 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Walworth County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area114.36 sq mi
Water area2.22 sq mi
Population density163 people per sq mi
Latitude, longitude42.7009, -88.5462

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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