ZIP Codes of Vernon County, WI

Population & People
Population & People
Total Population
31,628
Household Income
Household Income
Median Income
$73,677
Housing
Housing
Total Housing Units
14,372
Business & Economy
Business & Economy
Total Businesses
693
Employment
Employment
Employment Rate
58.04%
Education
Education
Bachelor's Degree+
25.09%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 11 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:11 ZIP Codes (11 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:353 / 608
Timezone:Central (GMT -06:00)
Local Time:11:55:41 PM
Population:31,628 [See All]
FIPS:55123
CBSA:La Crosse-Onalaska, WI-MN
Land Area:865 sq mi
Water Area:15 sq mi
Coordinates:43.6067, -90.8865
Quick Link:
https://www.zip-codes.com/county/wi-vernon.asp
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Wisconsin's #43 most populous county
31,628 residents across 11 ZIPs — #43 of 73 Wisconsin counties.

Standout ZIPs in this County


Most Populous
Viroqua · 8,863 people
28.0% of county total
Highest Income
Chaseburg · $94,286 median
1.3× county average
Largest Land Area
Viroqua · 180.9 sq mi
Spans the most ground
Fastest Growth
Chaseburg · 28.1% (10-yr)
1,030 → 1,319 residents
Most Educated
Viroqua · 31.1% bachelor's+
1,922 of 6,182 adults 25+

Things worth knowing about Vernon County


31,628 residents live across 11 ZIPs covering 865 sq mi, served by 11 distinct USPS-recognized cities.

Population moved from 30,163 to 31,628 from 2014 to 2024 — a +4.9% change. 7 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 54621 (Chaseburg, $94,286 median) and poorest ZIP 54652 (Readstown, $57,500) are 20.8 miles apart — a 1.6× income gap across local geography.

Median home values vary 1.6× across this county — from $172,800 in 54651 (Ontario) to $280,000 in 54621 (Chaseburg).

Density varies across the county — from 20 people/sq mi in 54624 (De Soto) to 54 in 54667 (Westby).

Educational attainment ranges from 15.2% bachelor's+ in 54639 (La Farge) to 31.1% in 54665 (Viroqua) — the breadth of educational profiles across the area.

Within Wisconsin, this is the #43 most populous of 73 counties and ranks #38 for median household income .

Weighted by population, the typical household earns about $72,343 across the county — reflecting what a typical resident sees, not a simple ZIP average.

25.1% of adults age 25+ hold a bachelor's degree or higher (5,364 of 21,375 reporting).

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

Stories about Vernon 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
865
square miles
Avg density
36.6
people per sq mi
Population
31,628
across 11 ZIPs
Viroqua
180.9 sq mi
8,863 residents
Hillsboro
146.7 sq mi
4,484 residents
Westby
94.9 sq mi
5,100 residents

All ZIP Codes in Vernon County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
54665ViroquaStandard8,863$72,093180.95.3%
54667WestbyStandard5,100$75,77494.95.1%
54634HillsboroStandard4,484$60,945146.77.5%
54639La FargeStandard2,435$61,37590.6-1.5%
54658StoddardStandard2,326$73,43856.1-1.5%
54623Coon ValleyStandard1,928$88,86444.0-3.6%
54624De SotoStandard1,554$81,51876.912.4%
54651OntarioStandard1,384$62,15954.12.1%
54621ChaseburgStandard1,319$94,28636.728.1%
54632GenoaStandard1,288$82,50047.615.1%
54652ReadstownStandard947$57,50036.1-4.7%

Adjacent & Nearby Counties