| Zip Code | City | Population ↓ |
|---|---|---|
| 49009 | Kalamazoo | 47,139 |
| 49024 | Portage | 30,539 |
| 49006 | Kalamazoo | 26,730 |
| 49048 | Kalamazoo | 23,626 |
| 49001 | Kalamazoo | 20,087 |
| 49002 | Portage | 19,975 |
| 49004 | Kalamazoo | 17,870 |
| 49008 | Kalamazoo | 16,114 |
| 49097 | Vicksburg | 11,448 |
| 49007 | Kalamazoo | 10,565 |
| 49083 | Richland | 7,780 |
| 49053 | Galesburg | 7,559 |
| 49087 | Schoolcraft | 6,168 |
| 49088 | Scotts | 3,794 |
| 49012 | Augusta | 3,705 |
| 49034 | Climax | 2,128 |
| 49052 | Fulton | 994 |
| 49074 | Nazareth | 223 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 18 ZCTAs in Kalamazoo County, Michigan (US Census).