16 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 48838 | Greenville | 18,212 |
| 49329 | Howard City | 9,156 |
| 48811 | Carson City | 7,440 |
| 48888 | Stanton | 5,813 |
| 48884 | Sheridan | 5,091 |
| 48850 | Lakeview | 4,659 |
| 48829 | Edmore | 3,652 |
| 48891 | Vestaburg | 2,915 |
| 48818 | Crystal | 2,554 |
| 49339 | Pierson | 2,188 |
| 48834 | Fenwick | 2,139 |
| 49347 | Trufant | 1,570 |
| 48886 | Six Lakes | 1,565 |
| 49322 | Coral | 1,245 |
| 48885 | Sidney | 1,129 |
| 48852 | Mcbrides | 145 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 16 ZCTAs in Montcalm County, Michigan (US Census).