11 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 47933 | Crawfordsville | 28,357 |
| 47954 | Ladoga | 2,224 |
| 47940 | Darlington | 1,421 |
| 47990 | Waynetown | 1,374 |
| 47968 | New Ross | 1,356 |
| 47989 | Waveland | 1,274 |
| 47967 | New Richmond | 873 |
| 47955 | Linden | 854 |
| 47994 | Wingate | 674 |
| 47965 | New Market | 490 |
| 47916 | Alamo | 45 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 11 ZCTAs in Montgomery County, Indiana (US Census).