ZIP Codes of Saint Joseph County, MI

Population & People
Population & People
Total Population
61,436
Household Income
Household Income
Median Income
$71,182
Housing
Housing
Total Housing Units
27,749
Business & Economy
Business & Economy
Total Businesses
1,169
Employment
Employment
Employment Rate
57.82%
Education
Education
Bachelor's Degree+
17.07%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 10 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:10 ZIP Codes (9 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:269
Timezone:Eastern (GMT -05:00)
Local Time:2:12:34 PM
Population:61,436 [See All]
FIPS:26149
CBSA:Sturgis, MI
Land Area:533 sq mi
Water Area:21 sq mi
Coordinates:41.9153, -85.4939
Quick Link:
https://www.zip-codes.com/county/mi-saint-joseph.asp
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Michigan's #32 most populous county
61,436 residents across 10 ZIPs — #32 of 83 Michigan counties.

Standout ZIPs in this County


Most Populous
Sturgis · 19,337 people
31.5% of county total
Highest Income
Constantine · $72,910 median
1.0× county average
Largest Land Area
Three Rivers · 111.8 sq mi
Spans the most ground
Fastest Growth
Burr Oak · 6.5% (10-yr)
2,488 → 2,650 residents
Most Educated
Three Rivers · 20.2% bachelor's+
2,630 of 13,050 adults 25+

Things worth knowing about Saint Joseph County


61,436 residents live across 10 ZIPs covering 533 sq mi, served by 10 distinct USPS-recognized cities.

Population moved from 61,411 to 61,436 from 2014 to 2024 — a 0.0% change. 7 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 49042 (Constantine, $72,910 median) and poorest ZIP 49093 (Three Rivers, $63,118) are 7.9 miles apart — a 1.2× income gap across local geography.

Median home values vary 1.5× across this county — from $138,400 in 49030 (Burr Oak) to $209,500 in 49066 (Leonidas).

Density varies across the county — from 32 people/sq mi in 49066 (Leonidas) to 207 in 49091 (Sturgis).

Educational attainment ranges from 5.6% bachelor's+ in 49030 (Burr Oak) to 20.2% in 49093 (Three Rivers) — the breadth of educational profiles across the area.

Within Michigan, this is the #32 most populous of 83 counties and ranks #31 for median household income .

Weighted by population, the typical household earns about $66,603 across the county — reflecting what a typical resident sees, not a simple ZIP average.

17.1% of adults age 25+ hold a bachelor's degree or higher (7,146 of 41,852 reporting).

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

All ZIP Codes in Saint Joseph County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
49091SturgisStandard19,337$67,33393.4-1.6%
49093Three RiversStandard18,433$63,118111.80.7%
49099White PigeonStandard5,942$70,30758.43.4%
49042ConstantineStandard4,564$72,91059.62.1%
49040ColonStandard3,384$64,30639.45.0%
49032CentrevilleStandard3,287$66,42038.1-5.1%
49072MendonStandard2,937$63,87560.3-11.7%
49030Burr OakStandard2,650$69,16748.96.5%
49066LeonidasStandard720$69,23622.617.8%
49075NottawaPO Box182$105,1470.059.6%

Adjacent & Nearby Counties