Residential delivery area · Wisconsin
ZIP Code 54937: Fond Du Lac, WI
ZIP code 54937 uses the postal name Fond Du Lac, Wisconsin and lies entirely in Fond du Lac County (Census 2020 ZIP-county file). About 22,000 people live there (Census Bureau, ACS 2020-2024), the less populous of Fond Du Lac's 2 residential ZIP codes. Median household income is $81,841 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Fond du Lac (5%) and North Fond du Lac (2%), and 2% in smaller places; 91% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Fond Du Lac · 2 residential ZIPs
- County
- Fond du Lac County
- Census places
- Fond du Lac (5%); North Fond du Lac (2%)
- Metro area
- Fond du Lac, WI
- House district
- WI-6 119th Congress
- State
- Wisconsin
- Time zone
- Central
- Land area
- 120.1 sq mi · 181 people per sq mi
- PO Box ZIPs
- 54936 also use the name Fond Du Lac
Where is ZIP code 54937?
54937 centers on 43.724°, -88.398° and covers 120.1 square miles of land plus 0.9 of water. It borders 11 ZIP codes: 54935, 53019, 53065, 53057, 53006, 53010, 53048, 54979, 53049, 54974 and more.
The map draws ZIP code areas only. For the streets inside 54937, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 54937 compare with the rest of Fond Du Lac?
| Measure | 54937 | In Fond Du Lac | In Fond du Lac County | In WI |
|---|---|---|---|---|
| People (ACS 2020-2024) | 21,687 | 2nd of 2 | 2nd of 23 | 92nd of 783 |
| Median household income | $82k | 1st of 2 | 14th of 21 | 257th of 610 |
| Median home value | $272k | 1st of 2 | 5th of 21 | 215th of 612 |
Its median household income is higher than in 64% of U.S. residential ZIP codes, and it is denser than 61% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 54937?
The 2020 Census counted 21,333 people in 54937; the ACS, which samples households over 2020-2024, estimates 21,687. Between the 2010 and 2020 censuses its population grew 11.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 21,687
- 2020 Census count
- 21,333+11.6% since 2010 (19,112)
- Households
- 8,887
- Median age
- 46.5
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 54937?
Of the 21,687 people the ACS estimates in 54937, 18.7% are under 18 and 22.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (87.6%).
- Under 1818.7%
- 18 to 6459.2%
- 65 and older22.1%
- White, not Hispanic87.6%
- Hispanic or Latino6.8%
- Other or two or more3.6%
- Black, not Hispanic1.3%
- Asian, not Hispanic0.7%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 54937 earn?
Median household income is $81,841 (ACS 2020-2024), the 14th highest of the 21 ranked ZIP codes in Fond du Lac County. It is not measurably different from 2015-2019 ($83,764 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $81,841
- Income per person
- $43,920
- Below the poverty line
- 5.7%
- Unemployed (of the labor force)
- 3.9%
- Adults 25+ with a bachelor's degree
- 23.1%
- Adjusted gross income per tax return, 2022
- $102,34310,710 returns; wages 57% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 54937?
FHFA's house price index for 54937, built from repeat sales and appraisals of the same homes, rose 90% from 2015 to 2025 and rose 65% from 2020 to 2025, and moved +7.0% in 2025.
- Median home value (owners' estimate)
- $272,200
- Median gross rent
- $1,132
- Homes owned by their occupants
- 72.3%
- Housing units
- 9,284
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 54937?
399 business establishments had a location in this ZIP code in 2023, 36 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction50
- Retail trade45
- Manufacturing40
- Wholesale trade36
- Health care and social assistance36
- Other services (except public administration)36
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 54937?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 54935 | Fond Du Lac | 41,613 | $63k | 3.9 mi |
| 53019 | Eden | 1,876 | $85k | 5.1 mi |
| 53065 | Oakfield | 2,351 | $100k | 9.2 mi |
| 53057 | Mount Calvary | 1,882 | $106k | 9.4 mi |
| 53006 | Brownsville | 1,905 | $89k | 9.9 mi |
| 53010 | Campbellsport | 7,444 | $95k | 10.0 mi |
| 53048 | Lomira | 3,420 | $75k | 10.8 mi |
| 54979 | Van Dyne | 2,037 | $110k | 12.4 mi |
| 53049 | Malone | 2,298 | $93k | 12.5 mi |
| 54974 | Rosendale | 1,415 | $97k | 13.3 mi |
| 54932 | Eldorado | 1,218 | $110k | 13.7 mi |
| 53079 | Saint Cloud | 1,420 | $87k | 11.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.