ZIP Codes of Watonwan County, MN

Population & People
Population & People
Total Population
11,131
Household Income
Household Income
Median Income
$76,964
Housing
Housing
Total Housing Units
4,886
Business & Economy
Business & Economy
Total Businesses
276
Employment
Employment
Employment Rate
59.79%
Education
Education
Bachelor's Degree+
17.52%
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 (5 Standard, 2 PO Box, 0 Unique) [See All]
Area Codes:507 / 924
Timezone:Central (GMT -06:00)
Local Time:2:12:40 PM
Population:11,131 [See All]
FIPS:27165
Land Area:470 sq mi
Water Area:5 sq mi
Coordinates:43.9884, -94.6503
Quick Link:
https://www.zip-codes.com/county/mn-watonwan.asp
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Minnesota's #64 most populous county
11,131 residents across 7 ZIPs — #64 of 93 Minnesota counties.

Standout ZIPs in this County


Most Populous
Saint James · 6,172 people
55.4% of county total
Highest Income
La Salle · $105,000 median
1.4× county average
Largest Land Area
Saint James · 186.3 sq mi
Spans the most ground
Fastest Growth
Saint James · 4.1% (10-yr)
5,929 → 6,172 residents
Most Educated
Madelia · 21.3% bachelor's+
429 of 2,017 adults 25+

Things worth knowing about Watonwan County


11,131 residents live across 7 ZIPs covering 470 sq mi, served by 7 distinct USPS-recognized cities.

Population moved from 11,104 to 11,131 from 2014 to 2024 — a +0.2% change. 2 ZIPs gained residents, 5 lost.

The county's wealthiest ZIP 56056 (La Salle, $105,000 median) and poorest ZIP 56022 (Darfur, $65,750) are 13.3 miles apart — a 1.6× income gap across local geography.

Median home values vary 2.6× across this county — from $70,600 in 56022 (Darfur) to $182,500 in 56062 (Madelia).

Density varies 63× across the county — from 10 people/sq mi in 56120 (Butterfield) to 640 in 56056 (La Salle).

Educational attainment ranges from 8.6% bachelor's+ in 56060 (Lewisville) to 21.3% in 56062 (Madelia) — the breadth of educational profiles across the area.

Within Minnesota, this is the #64 most populous of 93 counties and ranks #42 for median household income .

Weighted by population, the typical household earns about $71,553 across the county — reflecting what a typical resident sees, not a simple ZIP average.

17.5% of adults age 25+ hold a bachelor's degree or higher (1,273 of 7,268 reporting).

5 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.

All ZIP Codes in Watonwan County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
56081Saint JamesStandard6,172$67,337186.34.1%
56062MadeliaStandard3,234$76,713131.0-1.3%
56120ButterfieldStandard983$77,18897.1-12.1%
56060LewisvilleStandard400$80,09333.5-7.2%
56160OdinStandard224$66,66721.925.8%
56022DarfurPO Box63$65,7500.1-29.2%
56056La SallePO Box55$105,0000.1-33.7%

Adjacent & Nearby Counties