13 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 46032 | Carmel | 51,181 |
| 46060 | Noblesville | 47,514 |
| 46037 | Fishers | 46,976 |
| 46074 | Westfield | 46,042 |
| 46038 | Fishers | 43,245 |
| 46033 | Carmel | 40,153 |
| 46062 | Noblesville | 39,348 |
| 46280 | Indianapolis | 7,657 |
| 46034 | Cicero | 7,263 |
| 46069 | Sheridan | 6,924 |
| 46030 | Arcadia | 3,278 |
| 46031 | Atlanta | 2,237 |
| 46290 | Indianapolis | 111 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 13 ZCTAs in Hamilton County, Indiana (US Census).