County ZIP codes · Michigan · FIPS 26025
Calhoun County, MI ZIP Codes
Calhoun County, Michigan has 24 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 21 residential and 3 for PO boxes or a single organization. 12 of the residential ones lie mainly in Calhoun County and 9 mainly in a neighboring county; 14 cross the county line. Median household income ranges from $42,690 in 49037 (Battle Creek) to $94,750 in 49033 (Ceresco) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Calhoun County?
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 $59,722 and $73,929.
They carry 18 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 21 residential ZIP codes in Calhoun County
12 ZIP codes lie mainly in Calhoun County; 9 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 49015 | Battle Creek | 27,765 | 1,021 | $69k | $184k | 100% |
| 49014 | Battle Creek | 21,980 | 303 | $69k | $181k | 100% |
| 49017 | Battle Creek | 21,295 | 375 | $61k | $153k | 77% |
| 49037 | Battle Creek | 20,550 | 1,064 | $43k | $100k | 100% |
| 49068 | Marshall | 14,729 | 113 | $81k | $215k | 100% |
| 49224 | Albion | 13,447 | 135 | $53k | $137k | 69% |
| 49245 | Homer | 4,547 | 49 | $62k | $153k | 96% |
| 49051 | East Leroy | 2,787 | 99 | $75k | $260k | 100% |
| 49011 | Athens | 2,236 | 74 | $60k | $159k | 89% |
| 49092 | Tekonsha | 1,908 | 33 | $64k | $156k | 72% |
| 49033 | Ceresco | 1,719 | 52 | $95k | $327k | 100% |
| 49029 | Burlington | 1,415 | 38 | $75k | $207k | 100% |
Partly in Calhoun County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 49076 | Olivet | 4,294 | 75 | $74k | $201k | 46% |
| 49284 | Springport | 2,493 | 47 | $58k | $153k | 30% |
| 49052 | Fulton | 1,234 | 39 | $64k | $203k | 23% |
| 49094 | Union City | 3,778 | 67 | $65k | $144k | 22% |
| 49034 | Climax | 1,938 | 52 | $74k | $214k | 21% |
| 49021 | Bellevue | 6,319 | 67 | $83k | $184k | 15% |
| 49237 | Concord | 3,097 | 76 | $67k | $186k | 6% |
| 49252 | Litchfield | 2,556 | 60 | $56k | $145k | 5% |
| 49012 | Augusta | 3,219 | 76 | $73k | $254k | 2% |
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?
14 ZIP codes of Calhoun County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Calhoun | Elsewhere |
|---|---|---|
| 49017 | 77% | Barry County 23% |
| 49224 | 69% | Jackson County 31% |
| 49021 | 15% | Eaton County 46%; Barry County 39% |
| 49245 | 96% | Branch County 2%; Jackson County 2% |
| 49076 | 46% | Eaton County 54% |
| 49094 | 22% | Branch County 78% |
| 49012 | 2% | Kalamazoo County 98% |
| 49237 | 6% | Jackson County 94% |
| 49252 | 5% | Hillsdale County 81%; Branch County 8%; Jackson County 7% |
| 49284 | 30% | Jackson County 63%; Eaton County 7% |
| 49011 | 89% | Branch County 9%; St. Joseph County 2% |
| 49034 | 21% | Kalamazoo County 79% |
| 49092 | 72% | Branch County 28% |
| 49052 | 23% | Kalamazoo County 77% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Calhoun County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Calhoun County's ZIP codes use 2 prefixes: 490 and 492.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.