53121 ZIP Code — Elkhorn, WI
Walworth County, Wisconsin
ZIP code 53121 is located in Elkhorn, Wisconsin, within Walworth County. It covers approximately 114.36 square miles and serves a population of 18,868 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 262.
About ZIP code 53121
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $261,100. Owner-occupancy sits near the national average at 73%.
Median household income is $82,308. The poverty rate of 5% is below the national average. 35% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 24 minutes is near the national average.
Educational attainment is near the national average, with 30% of residents holding a bachelor's degree or higher.
18,868
population
114.36
sq mi land
Standard
ZIP type
Central (CT)
timezone
53121 ZIP code map
Cities in ZIP code 53121
Below are the cities the US Postal Service accepts for ZIP code 53121. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Elkhorn | Preferred |
Nearby ZIP codes
53115 Delavan (7.9 mi)
53120 East Troy (8.3 mi)
53190 Whitewater (10.1 mi)
53191 Williams Bay (10.2 mi)
53147 Lake Geneva (11.3 mi)
53119 Eagle (11.6 mi)
53156 Palmyra (11.9 mi)
53125 Fontana (12.6 mi)
53184 Walworth (13.3 mi)
53114 Darien (13.3 mi)
53105 Burlington (14.4 mi)
53149 Mukwonago (14.9 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 18,868 |
| Population density | 165 / sq mi |
| State FIPS | 55 |
| County FIPS | 127 |
| Geography | |
|---|---|
| Land area | 114.36 sq mi |
| Water area | 2.22 sq mi |
| Latitude | 42.7247 |
| Longitude | -88.5331 |
| Timezone | Central (CT) |
| Area code | 262 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 33.3% | 37.4% | 39.4% |
| $50k – $100k | 34.2% | 34.4% | 33.0% |
| $100k – $200k | 27.6% | 22.8% | 22.4% |
| Over $200k | 4.9% | 5.5% | 5.2% |
Demographics & statistics
18,868
Population
165
People per sq mi
44.1
Median age
$82,308
Median household income
$42,321
Per capita income
$261,100
Median home value
$970
Median monthly rent
72.9%
Home ownership
5.0%
Poverty rate
1.5%
Unemployment
6,502
Housing units
30.2%
Bachelor's or higher
Age distribution
Male
Female
470
Under 5
478
445
5–9
453
552
10–14
563
512
15–19
522
590
20–24
600
1,065
25–34
1,085
1,130
35–44
1,151
1,140
45–54
1,161
880
55–59
897
687
60–64
700
1,204
65–74
1,226
494
75–84
503
178
85+
182
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 3,719 | 19.7% |
| 18 and over | 15,149 | 80.3% |
| 65 and over | 3,787 | 20.1% |
| Median age | 44.1 years | |
Race & ethnicity
White
83.5%
Hispanic or Latino
6.6%
Two or more races
6.4%
Other race
2%
Black or African American
0.8%
Asian
0.4%
American Indian / Alaska Native
0.3%
| Group | Count | % |
|---|---|---|
| White | 16,869 | 83.5% |
| Hispanic or Latino | 1,334 | 6.6% |
| Two or more races | 1,299 | 6.4% |
| Other race | 411 | 2% |
| Black or African American | 159 | 0.8% |
| Asian | 75 | 0.4% |
| American Indian / Alaska Native | 55 | 0.3% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 33.3% | 37.4% | 39.4% |
| $50k – $100k | 34.2% | 34.4% | 33.0% |
| $100k – $200k | 27.6% | 22.8% | 22.4% |
| Over $200k | 4.9% | 5.5% | 5.2% |
Under $10k
1.7%
$10k–$15k
2.5%
$15k–$25k
4.8%
$25k–$35k
4.8%
$35k–$50k
10.0%
$50k–$75k
21.1%
$75k–$100k
15.9%
$100k–$150k
20.1%
$150k–$200k
10.2%
$200k+
8.8%
| Range | % of households |
|---|---|
| Under $10k | 1.7% |
| $10k–$15k | 2.5% |
| $15k–$25k | 4.8% |
| $25k–$35k | 4.8% |
| $35k–$50k | 10.0% |
| $50k–$75k | 21.1% |
| $75k–$100k | 15.9% |
| $100k–$150k | 20.1% |
| $150k–$200k | 10.2% |
| $200k+ | 8.8% |
| Median income | $82,308 |
Housing
Home values
Under $50k
2.9%
$50k–$100k
1.3%
$100k–$150k
5.1%
$150k–$200k
15.1%
$200k–$300k
38.3%
$300k–$500k
26.5%
$500k–$1M
9.0%
$1M+
1.8%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $261,100 |
| Median rent / month | $970 |
| Owner occupied | 72.9% |
| Renter occupied | 27.1% |
| Vacant | 10.4% |
| Single-family detached | 73.2% |
| Large apartment buildings | 3.0% |
| Mobile homes | 1.5% |
| Median rooms | 5.8 |
| Avg household size (owned) | 2.59 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.9% |
| 2010–2019 | 3.4% |
| 2000–2009 | 20.0% |
| 1990–1999 | 19.1% |
| 1980–1989 | 7.8% |
| 1970–1979 | 13.8% |
| 1960–1969 | 6.9% |
| 1950–1959 | 4.9% |
| 1940–1949 | 5.6% |
| 1939 or earlier | 17.6% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.0% |
| 1 bedroom | 5.9% |
| 2 bedrooms | 29.4% |
| 3 bedrooms | 39.8% |
| 4 bedrooms | 20.4% |
| 5+ bedrooms | 3.5% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.3% |
| 1 vehicle | 28.3% |
| 2 vehicles | 42.9% |
| 3 or more | 26.6% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 75.5% |
| Electricity | 12.1% |
| Propane / LP gas | 9.2% |
| Fuel oil | 0.9% |
| Wood | 1.1% |
| No fuel used | 1.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 4,090 | 53.1% |
| Cohabiting couple | 583 | 7.6% |
| Male householder, no spouse | 1,528 | 19.8% |
| Female householder, no spouse | 1,497 | 19.4% |
| Households with children under 18 | 1,863 | 24.2% |
| Households with seniors (65+) | 2,677 | 34.8% |
| Average household size | 2.41 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 32.4% | 27.2% |
| Married | 53.2% | 55.1% |
| Separated | 1.1% | 0.2% |
| Widowed | 2.5% | 7.4% |
| Divorced | 10.9% | 10.1% |
Education
Less than 9th grade
1.8%
Some HS, no diploma
4.9%
HS graduate
30.8%
Some college, no degree
23.8%
Associate's degree
8.4%
Bachelor's degree
21.3%
Graduate / professional
8.9%
| Metric | % |
|---|---|
| HS diploma or higher | 93.3% |
| Bachelor's or higher | 30.2% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 220 | 6.0% |
| Kindergarten | 148 | 4.1% |
| Elementary school | 1,623 | 44.6% |
| High school | 1,050 | 28.8% |
| College / grad school | 602 | 16.5% |
Employment
Industry of employment
Education & healthcare
23.3%
Manufacturing
18.0%
Construction
10.4%
Retail trade
8.9%
Professional & management
8.2%
Arts, food & hospitality
7.3%
Other services
5.9%
Transportation & utilities
5.3%
Finance & real estate
4.3%
Agriculture & mining
3.2%
Public administration
3.2%
Wholesale trade
1.2%
Information
0.7%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 37.9% |
| Service | 13.1% |
| Sales & office | 19.3% |
| Natural resources & construction | 12.1% |
| Production & transportation | 17.6% |
Employment type
| Type | % |
|---|---|
| Private sector | 81.0% |
| Government | 14.8% |
| Self-employed | 4.2% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 80.1% |
| Carpool | 10.3% |
| Public transit | 0.0% |
| Walk | 2.7% |
| Work from home | 6.6% |
| Other means | 0.2% |
| Avg commute (minutes) | 24.4 |
Poverty
All people
5.0%
Under 18 years
9.1%
18 and over
4.0%
Married-couple families
1.4%
Female-led households
17.8%
Income support
| Source | % of households |
|---|---|
| Social Security | 34.5% |
| Retirement income | 28.9% |
| Supplemental Security | 3.3% |
| Cash public assistance | 2.1% |
| Food stamps / SNAP | 6.7% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 34.8% |
| High blood pressure | 28.8% |
| High cholesterol | 30.8% |
| Diabetes | 8.0% |
| Heart disease | 5.3% |
| Stroke | 2.5% |
| Asthma | 9.5% |
| Arthritis | 22.3% |
| Kidney disease | 2.5% |
| Pulmonary disease | 5.3% |
| Cancer | 6.5% |
| Behavior / access | % |
|---|---|
| Smoking | 16.7% |
| Binge drinking | 24.7% |
| No physical activity | 18.6% |
| Less than 7 hrs sleep | 30.0% |
| Depression | 19.6% |
| Fair or poor health | 10.8% |
| Poor mental health | 13.1% |
| Poor physical health | 9.0% |
| No health insurance | 10.3% |
| Visited doctor (checkup) | 72.4% |
| Visited dentist | 70.6% |
| Cholesterol screening | 87.6% |
| Teeth loss | 10.3% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,016 | 6.7% |
| Disability | % |
|---|---|
| Any disability | 11.3% |
| Under 18 | 1.4% |
| 18–64 years | 9.7% |
| 65 and over | 26.1% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 80.0% |
| Public insurance | 30.9% |
| No insurance | 4.6% |
| Uninsured under 19 | 2.6% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 17,920 | 95.0% |
| Spanish | 333 | 1.9% |
| Other Indo-European | 326 | 1.8% |
| Asian & Pacific Islander | 7 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 18,088 | 95.9% |
| Born in same state | 18,016 | 95.5% |
| Born in different state | 12,077 | 64.0% |
| Foreign born | 72 | 0.4% |
| Naturalized citizen | 780 | 4.1% |
| Not a US citizen | 500 | 64.1% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 2,470 | 13.1% |
| French | 1,642 | 8.7% |
| Polish | 827 | 4.4% |
| Arab | 584 | 3.1% |
| English | 508 | 2.7% |
| Ancestry | Count | % |
|---|---|---|
| German | 201 | 1.1% |
| Dutch | 150 | 0.8% |
| Irish | 66 | 0.3% |
| Norwegian | 44 | 0.2% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 40.8% |
| Internet access | 94.1% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 53121
What city is ZIP code 53121 in?
ZIP code 53121 is primarily assigned to Elkhorn, Wisconsin.
What county is ZIP code 53121 in?
ZIP code 53121 falls within Walworth County, Wisconsin.
What is the population of ZIP code 53121?
ZIP code 53121 has an estimated population of 18,868 residents, with a density of 165 people per square mile.
What is the median household income in ZIP code 53121?
The median household income in ZIP code 53121 is $82,308, above the national median of ~$75,000.
What is the typical home value in ZIP code 53121?
The median home value in ZIP code 53121 is $261,100.
What timezone is ZIP code 53121 in?
ZIP code 53121 observes the CST timezone.