16 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 48838 | Greenville | 17,925 |
| 49329 | Howard City | 9,030 |
| 48811 | Carson City | 7,416 |
| 48888 | Stanton | 5,905 |
| 48884 | Sheridan | 4,777 |
| 48850 | Lakeview | 4,526 |
| 48829 | Edmore | 3,461 |
| 48891 | Vestaburg | 2,923 |
| 48818 | Crystal | 2,541 |
| 49339 | Pierson | 2,327 |
| 48834 | Fenwick | 2,296 |
| 48886 | Six Lakes | 1,529 |
| 49347 | Trufant | 1,496 |
| 48885 | Sidney | 1,273 |
| 49322 | Coral | 1,222 |
| 48852 | Mcbrides | 170 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 16 ZCTAs in Montcalm County, Michigan (US Census).