| Zip Code | City | Population ↓ |
|---|---|---|
| 43123 | Grove City | 66,365 |
| 43081 | Westerville | 64,746 |
| 43026 | Hilliard | 64,633 |
| 43068 | Reynoldsburg | 58,916 |
| 43230 | Columbus | 58,079 |
| 43228 | Columbus | 57,406 |
| 43229 | Columbus | 55,168 |
| 43232 | Columbus | 46,881 |
| 43207 | Columbus | 46,010 |
| 43235 | Columbus | 45,462 |
| 43016 | Dublin | 44,092 |
| 43204 | Columbus | 43,990 |
| 43224 | Columbus | 43,391 |
| 43017 | Dublin | 41,837 |
| 43213 | Columbus | 36,724 |
| 43221 | Columbus | 35,164 |
| 43201 | Columbus | 34,651 |
| 43219 | Columbus | 32,136 |
| 43004 | Blacklick | 31,002 |
| 43119 | Galloway | 29,409 |
| 43220 | Columbus | 29,355 |
| 43209 | Columbus | 28,600 |
| 43054 | New Albany | 28,552 |
| 43223 | Columbus | 27,211 |
| 43085 | Columbus | 26,653 |
| 43214 | Columbus | 26,200 |
| 43227 | Columbus | 25,031 |
| 43231 | Columbus | 23,110 |
| 43206 | Columbus | 22,667 |
| 43212 | Columbus | 22,619 |
| 43211 | Columbus | 21,976 |
| 43202 | Columbus | 20,778 |
| 43215 | Columbus | 15,754 |
| 43125 | Groveport | 14,212 |
| 43205 | Columbus | 12,600 |
| 43210 | Columbus | 11,584 |
| 43203 | Columbus | 8,762 |
| 43222 | Columbus | 4,151 |
| 43217 | Columbus | 2,031 |
| 43002 | Amlin | 776 |
| 43126 | Harrisburg | 404 |
| 43109 | Brice | 147 |
| 43218 | Columbus | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 43 ZCTAs in Franklin County, Ohio (US Census).