Postal Codes

54937 ZIP Code

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ZIP code 54937 covers Fond Du Lac, Wisconsin, with a population of about 21,877 and a median household income of $79,212.

Population
21,877182 per square mile
Median age
46.17.4 points above the US average
Median household income
$79,212about the Wisconsin median
Poverty rate
6%6.4 points below the US average
Typical home value
$355,758up 34.8% in five years
Median rent
$1,097about the Wisconsin median
Degree or higher
24.6%10.4 points below the US average
Homeownership
73.3%8.3 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
388

Where 54937 is

Fond Du Lac, 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

Population21,877
Median age46.1
Family households64.6%
Born outside the US3.7%
Speaks a language other than English at home6.5%
White (non-Hispanic)87.3%
Black (non-Hispanic)1.5%
Asian (non-Hispanic)1%
Hispanic or Latino7.3%
Veterans7.4%
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$79,212
Income per person$41,843
Poverty rate6%
Households on SNAP or cash assistance5.4%

Household income distribution

Under $10k2.9%
$10–15k1.8%
$15–20k1.8%
$20–25k3.0%
$25–30k3.6%
$30–35k4.2%
$35–40k3.5%
$40–45k3.4%
$45–50k2.2%
$50–60k8.4%
$60–75k12.2%
$75–100k13.1%
$100–125k11.9%
$125–150k9.2%
$150–200k10.4%
$200k or more8.4%

Income as declared to the IRS

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

Tax returns filed10,710
Mean adjusted gross income$102,343
Returns declaring $200,000 or more6.6%
Returns, under $25k22.6%
Returns, $25k–$50k22.5%
Returns, $50k–$75k16.3%
Returns, $75k–$100k11.4%
Returns, $100k–$200k20.5%
Returns, $200k or more6.6%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$262,000
Median gross rent$1,097
Rent as a share of household income24.6%
Owner-occupied73.3%
Vacant homes6.2%
Median year built1985

What the homes are

Detached house66.6%
Attached house2.1%
2 to 4 units3.8%
5 to 19 units13.5%
20 or more units4.3%
Mobile home9.6%
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$355,758as of 2026-07
Typical home value, 1 yearup 4%
Typical home value, 5 yearsup 34.8%
Typical home value, 10 yearsup 93.7%
Typical asking rent$1,467as of 2026-07
Typical home value since 2000
200920172026$355,758$171,361

$175,286 in 2009 to $355,758 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.2%
Bachelor's degree or higher24.6%
High school diploma or higher93%
Works from home6.1%
Drives to work alone85.8%
Takes public transport0%
Commutes 45 minutes or more12.6%
Health

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

Obesity43.5% 10.1 pts above the national average of 33.4%
Diagnosed diabetes11% 1 pts below the national average of 12%
Currently smokes14.2% 1 pts above the national average of 13.2%
High blood pressure33.5% 0.6 pts below the national average of 34.1%
Fair or poor general health16.8% 3.5 pts below the national average of 20.3%
No health insurance (18–64)7.8% 3.5 pts below the national average of 11.3%
Depression24.6% 2.7 pts above the national average of 21.9%
No leisure-time physical activity27.8% 2.4 pts above the national average of 25.4%
Arthritis28.5% 3.4 pts above the national average of 25.1%
Binge drinking18.9% 2.9 pts above the national average of 16%
Taking blood pressure medication78.1% 3.4 pts above the national average of 74.7%
Cancer (non-skin)8.9% 1.2 pts above the national average of 7.7%
Current asthma11.2% 0.8 pts above the national average of 10.4%
Coronary heart disease6.5% same as the national average of 6.2%
Routine check-up in past year78.4% 1.7 pts above the national average of 76.7%
Cholesterol screening86.5% 0.6 pts above the national average of 85.9%
Cognitive disability12.9% 1.9 pts below the national average of 14.8%
Colorectal screening68.7% 4.4 pts above the national average of 64.3%
COPD6.5% same as the national average of 6.6%
Visited a dentist67.9% 6.6 pts above the national average of 61.3%
Any disability30.3% same as the national average of 30.7%
Lacks emotional support20.2% 4.6 pts below the national average of 24.8%
Food insecurity10.9% 6.2 pts below the national average of 17.1%
Received food stamps11.1% 3.2 pts below the national average of 14.3%
Hearing disability7% same as the national average of 6.7%
High cholesterol35.9% same as the national average of 36.2%
Housing insecurity9.1% 4.7 pts below the national average of 13.8%
Independent living disability7.7% 0.7 pts below the national average of 8.4%
Lacks transport6.1% 3.1 pts below the national average of 9.2%
Loneliness31.1% 3.3 pts below the national average of 34.4%
Mammography use79.1% 3.2 pts above the national average of 75.9%
Poor mental health (14+ days)15.5% 1.3 pts below the national average of 16.8%
Mobility disability13.6% same as the national average of 14%
Poor physical health (14+ days)13.3% same as the national average of 13.5%
Self-care disability3.4% 0.6 pts below the national average of 4%
Utility shut-off threat5.1% 3.7 pts below the national average of 8.8%
Sleeps under 7 hours30% 6.4 pts below the national average of 36.4%
Stroke3.3% same as the national average of 3.4%
All natural teeth lost10.4% 2.6 pts below the national average of 13%
Vision disability4.1% 1.5 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments388
People employed7,914
Annual payroll$399,846,000
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 63.7% of US census tracts
FEMA ratingRelatively Low to Relatively Moderate across the 10 census tracts this ZIP code covers
Expected annual loss74.1 out of 100
Community resilience91 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.

Hail93.2Relatively High at its worst in this ZIP code
Cold wave91Very High at its worst in this ZIP code
Strong wind86.7Relatively High at its worst in this ZIP code
Tornado86.6Very High at its worst in this ZIP code
Wildfire76.2Relatively Low at its worst in this ZIP code
Landslide75.8Relatively Low at its worst in this ZIP code
Winter weather68.4Relatively High at its worst in this ZIP code
River flooding67.3Relatively High at its worst in this ZIP code
Lightning62.5Relatively Moderate at its worst in this ZIP code
Heat wave53.8Relatively Moderate at its worst in this ZIP code
Hurricane28.7Very Low at its worst in this ZIP code
Earthquake20.6Very Low at its worst in this ZIP code
Ice storm19.8Very 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$79,212$75,670$78,538
Income per person$41,843$42,019$43,289
Poverty rate6%10.6%12.4%
Median home value$262,000$247,400$303,400
Median gross rent$1,097$1,045$1,348
Homeownership73.3%67.9%65%
Bachelor's degree or higher24.6%32.8%35%
Unemployment rate3.2%3.3%5.2%
Works from home6.1%11.6%13.5%
Born outside the US3.7%5.1%13.9%
Median age46.140.138.7
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 stationFOND DU LAC CO AP, WI US9.6 km away
Rain in a year28 in

Average high and low by month

January26.7°F / 11.1°F0.73 in rain
February30.3°F / 13.8°F0.69 in rain
March42.1°F / 24.3°F1.72 in rain
April55.7°F / 35.1°F2.79 in rain
May68.2°F / 46.6°F3.31 in rain
June78.1°F / 56.8°F4.14 in rain
July81.9°F / 60.8°F3.4 in rain
August79.5°F / 59.2°F3.45 in rain
September72.6°F / 51.2°F2.86 in rain
October59.3°F / 39.8°F2.54 in rain
November44.7°F / 28.7°F1.84 in rain
December32.4°F / 17.9°F0.92 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 supermarket5% of this ZIP code's area
Far from a supermarket22% of this ZIP code's area
No vehicle and far from a supermarket43% 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 7 school districts, so the address decides which one, not the ZIP code.

Fond du Lac School District44.8% of this ZIP code's land area
North Fond du Lac School District14.1% of this ZIP code's land area
Oakfield School District12.7% of this ZIP code's land area
Campbellsport School District11.6% of this ZIP code's land area
Lomira School District6.9% of this ZIP code's land area
Rosendale-Brandon School District6% of this ZIP code's land area
New Holstein School District3.9% 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 vulnerability17more vulnerable than 17% of US census tracts
Socioeconomic status12more vulnerable than 12% of US census tracts
Household characteristics19more vulnerable than 19% of US census tracts
Racial and ethnic minority status15more vulnerable than 15% of US census tracts
Housing type and transport50more vulnerable than 50% 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.

54974 Rosendale, WI3.9 km away
54932 Eldorado, WI8.9 km away
53065 Oakfield, WI9.6 km away
54936 Fond Du Lac, WI13.4 km away
54935 Fond Du Lac, WI13.7 km away
54979 Van Dyne, WI14.3 km away
53919 Brandon, WI15 km away
54964 Pickett, WI17.4 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.

Fond du Lac County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area120.11 sq mi
Water area0.88 sq mi
Population density182 people per sq mi
Latitude, longitude43.7650, -88.6057

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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