ZIP Codes of Eau Claire County, WI

Population & People
Population & People
Total Population
106,310
Household Income
Household Income
Median Income
$77,966
Housing
Housing
Total Housing Units
46,717
Business & Economy
Business & Economy
Total Businesses
2,834
Employment
Employment
Employment Rate
66.88%
Education
Education
Bachelor's Degree+
36.99%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 7 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:7 ZIP Codes (6 Standard, 1 PO Box, 0 Unique) [See All]
Area Codes:534 / 715
Timezone:Central (GMT -06:00)
Local Time:2:14:18 PM
Population:106,310 [See All]
FIPS:55035
CBSA:Eau Claire, WI
Land Area:526 sq mi
Water Area:8 sq mi
Coordinates:44.7580, -91.3275
Quick Link:
https://www.zip-codes.com/county/wi-eau-claire.asp
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Wisconsin's #15 most populous county
106,310 residents across 7 ZIPs — #15 of 73 Wisconsin counties.

Standout ZIPs in this County


Most Populous
Eau Claire · 44,153 people
41.5% of county total
Highest Income
Fall Creek · $102,083 median
1.3× county average
Largest Land Area
Augusta · 138.2 sq mi
Spans the most ground
Fastest Growth
Altoona · 26.4% (10-yr)
7,077 → 8,947 residents
Most Educated
Eau Claire · 44.0% bachelor's+
11,972 of 27,223 adults 25+

Things worth knowing about Eau Claire County


106,310 residents live across 7 ZIPs covering 526 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 99,847 to 106,310 from 2014 to 2024 — a +6.5% change. 5 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 54742 (Fall Creek, $102,083 median) and poorest ZIP 54741 (Fairchild, $62,679) are 19.0 miles apart — a 1.6× income gap across local geography.

Median home values vary 1.7× across this county — from $166,700 in 54741 (Fairchild) to $289,900 in 54701 (Eau Claire).

Density varies 98× across the county — from 16 people/sq mi in 54741 (Fairchild) to 1,538 in 54720 (Altoona).

Educational attainment ranges from 14.9% bachelor's+ in 54722 (Augusta) to 44.0% in 54701 (Eau Claire) — the breadth of educational profiles across the area.

Within Wisconsin, this is the #15 most populous of 73 counties and ranks #27 for median household income with the #13 fastest decade growth .

Weighted by population, the typical household earns about $74,957 across the county — reflecting what a typical resident sees, not a simple ZIP average.

37.0% of adults age 25+ hold a bachelor's degree or higher (25,327 of 68,464 reporting).

6 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.

All ZIP Codes in Eau Claire County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
54703Eau ClaireStandard44,153$71,51884.15.8%
54701Eau ClaireStandard43,014$74,36186.74.5%
54720AltoonaStandard8,947$85,9775.826.4%
54722AugustaStandard4,277$71,181138.21.2%
54742Fall CreekStandard4,255$102,083105.26.4%
54741FairchildStandard1,664$62,679106.2-0.1%
54702Eau ClairePO Box0.0

Adjacent & Nearby Counties