ZIP Codes of Dunn County, WI

Population & People
Population & People
Total Population
45,192
Household Income
Household Income
Median Income
$76,419
Housing
Housing
Total Housing Units
18,722
Business & Economy
Business & Economy
Total Businesses
908
Employment
Employment
Employment Rate
64.75%
Education
Education
Bachelor's Degree+
29.54%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 12 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:12 ZIP Codes (9 Standard, 3 PO Box, 0 Unique) [See All]
Area Codes:534 / 715
Timezone:Central (GMT -06:00)
Local Time:11:55:38 PM
Population:45,192 [See All]
FIPS:55033
CBSA:Menomonie, WI
Land Area:790 sq mi
Water Area:12 sq mi
Coordinates:44.9579, -91.8878
Quick Link:
https://www.zip-codes.com/county/wi-dunn.asp
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Wisconsin's #33 most populous county
45,192 residents across 12 ZIPs — #33 of 73 Wisconsin counties.

Standout ZIPs in this County


Most Populous
Menomonie · 26,193 people
58.0% of county total
Highest Income
Wheeler · $88,750 median
1.2× county average
Largest Land Area
Menomonie · 234.8 sq mi
Spans the most ground
Fastest Growth
Knapp · 18.7% (10-yr)
1,188 → 1,410 residents
Most Educated
Menomonie · 35.9% bachelor's+
5,464 of 15,225 adults 25+

Things worth knowing about Dunn County


45,192 residents live across 12 ZIPs covering 790 sq mi, served by 12 distinct USPS-recognized cities.

Population moved from 43,384 to 45,192 from 2014 to 2024 — a +4.2% change. 6 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 54772 (Wheeler, $88,750 median) and poorest ZIP 54763 (Ridgeland, $65,417) are 5.4 miles apart — a 1.4× income gap across local geography.

Median home values vary 1.6× across this county — from $160,200 in 54763 (Ridgeland) to $260,400 in 54739 (Elk Mound).

Density varies across the county — from 19 people/sq mi in 54763 (Ridgeland) to 112 in 54751 (Menomonie).

Educational attainment ranges from 14.7% bachelor's+ in 54749 (Knapp) to 35.9% in 54751 (Menomonie) — the breadth of educational profiles across the area.

Within Wisconsin, this is the #33 most populous of 73 counties and ranks #33 for median household income .

Weighted by population, the typical household earns about $75,809 across the county — reflecting what a typical resident sees, not a simple ZIP average.

29.5% of adults age 25+ hold a bachelor's degree or higher (8,357 of 28,290 reporting).

9 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Dunn County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
790
square miles
Avg density
57.2
people per sq mi
Population
45,192
across 12 ZIPs
Menomonie
234.8 sq mi
26,193 residents
Colfax
145.1 sq mi
5,578 residents
Elk Mound
105.6 sq mi
5,549 residents

All ZIP Codes in Dunn County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
54751MenomonieStandard26,193$72,028234.81.2%
54730ColfaxStandard5,578$83,010145.110.8%
54739Elk MoundStandard5,549$88,667105.614.6%
54725BoycevilleStandard2,844$71,74599.1-0.7%
54749KnappStandard1,410$77,90341.318.7%
54772WheelerStandard1,164$88,75057.27.5%
54763RidgelandStandard1,120$65,41760.2-4.1%
54734DowningStandard772$71,50026.0-3.9%
54737Eau GalleStandard562$68,75020.87.3%
54735DownsvillePO Box0.0
54765Sand CreekPO Box0.0
54764Rock FallsPO Box0.0

Adjacent & Nearby Counties