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County ZIP codes · Michigan · FIPS 26149

St. Joseph County, MI ZIP Codes

St. Joseph County, Michigan has 13 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 10 of the residential ones lie mainly in St. Joseph County and 3 mainly in a neighboring county; 9 cross the county line. Median household income ranges from $59,722 in 49011 (Athens) to $88,208 in 49097 (Vicksburg) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of St. Joseph County?

49011 · Athens: $60k49030 · Burr Oak: $69k49032 · Centreville: $66k49040 · Colon: $64k49042 · Constantine: $73k49066 · Leonidas: $69k49067 · Marcellus: $75k49072 · Mendon: $64k49075 · Nottawa: $105k49091 · Sturgis: $67k49093 · Three Rivers: $63k49097 · Vicksburg: $88k49099 · White Pigeon: $70k49093490674909149097490304907249032490424904049099490114906649011 · Athens: $60k49030 · Burr Oak: $69k49032 · Centreville: $66k49040 · Colon: $64k49042 · Constantine: $73k49066 · Leonidas: $69k49067 · Marcellus: $75k49072 · Mendon: $64k49075 · Nottawa: $105k49091 · Sturgis: $67k49093 · Three Rivers: $63k49097 · Vicksburg: $88k49099 · White Pigeon: $70k49093490674909149097490304907249032490424904049099490114906649011 · Athens: $60k49030 · Burr Oak: $69k49032 · Centreville: $66k49040 · Colon: $64k49042 · Constantine: $73k49066 · Leonidas: $69k49067 · Marcellus: $75k49072 · Mendon: $64k49075 · Nottawa: $105k49091 · Sturgis: $67k49093 · Three Rivers: $63k49097 · Vicksburg: $88k49099 · White Pigeon: $70k4909349067490914909749072490324904249040490994901149066
The residential ZIP codes of St. Joseph County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $63,875 and $70,307.

They carry 13 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 13 residential ZIP codes in St. Joseph County

10 ZIP codes lie mainly in St. Joseph County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in St. Joseph County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
49091 Sturgis 19,337 222 $67k $183k 100%
49093 Three Rivers 18,433 174 $63k $183k 95%
49099 White Pigeon 5,942 102 $70k $177k 82%
49042 Constantine 4,564 80 $73k $161k 92%
49040 Colon 3,384 82 $64k $170k 73%
49032 Centreville 3,287 92 $66k $182k 100%
49072 Mendon 2,937 50 $64k $175k 96%
49030 Burr Oak 2,650 54 $69k $138k 86%
49066 Leonidas 720 35 $69k $210k 100%
49075 Nottawa 182 3,370 $105k $89k 100%

Partly in St. Joseph County

Residential ZIP codes mainly in another county that reach at least 1% into St. Joseph County, by their share here
In this county
49067 Marcellus 3,974 48 $75k $211k 29%
49097 Vicksburg 11,754 168 $88k $240k 5%
49011 Athens 2,236 74 $60k $159k 2%

Download the 13 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

9 ZIP codes of St. Joseph County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in St. Joseph County and in the neighboring counties
ZIPIn St. JosephElsewhere
4909395%Cass County 5%
490975%Kalamazoo County 95%
4909982%Cass County 18%
4904292%Cass County 8%
4906729%Cass County 64%; Van Buren County 7%
4904073%Branch County 27%
4907296%Kalamazoo County 4%
4903086%Branch County 14%
490112%Calhoun County 89%; Branch County 9%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do St. Joseph County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of St. Joseph County starts with 490.

Three-digit prefixes of St. Joseph County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are St. Joseph County's
PrefixSectional centerHereAll codes
490 Grand Rapids, MI (SCF 493) 13 92

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.