| Zip Code | City | Population ↓ |
|---|---|---|
| 65203 | Columbia | 61,539 |
| 65201 | Columbia | 50,011 |
| 65202 | Columbia | 47,327 |
| 65010 | Ashland | 7,205 |
| 65255 | Hallsville | 5,216 |
| 65039 | Hartsburg | 3,076 |
| 65284 | Sturgeon | 2,316 |
| 65256 | Harrisburg | 2,011 |
| 65279 | Rocheport | 1,940 |
| 65215 | Columbia | 225 |
| 65216 | Columbia | 202 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 11 ZCTAs in Boone County, Missouri (US Census).