11 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 47933 | Crawfordsville | 28,319 |
| 47954 | Ladoga | 2,283 |
| 47940 | Darlington | 1,436 |
| 47990 | Waynetown | 1,428 |
| 47968 | New Ross | 1,351 |
| 47989 | Waveland | 1,182 |
| 47967 | New Richmond | 844 |
| 47955 | Linden | 777 |
| 47965 | New Market | 514 |
| 47994 | Wingate | 450 |
| 47916 | Alamo | 56 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 11 ZCTAs in Montgomery County, Indiana (US Census).