| Zip Code | City | Population ↓ |
|---|---|---|
| 66614 | Topeka | 33,080 |
| 66604 | Topeka | 22,933 |
| 66605 | Topeka | 21,779 |
| 66610 | Topeka | 10,835 |
| 66611 | Topeka | 10,441 |
| 66618 | Topeka | 9,828 |
| 66606 | Topeka | 9,656 |
| 66607 | Topeka | 9,414 |
| 66617 | Topeka | 8,876 |
| 66609 | Topeka | 6,878 |
| 66616 | Topeka | 5,463 |
| 66608 | Topeka | 4,964 |
| 66409 | Berryton | 3,355 |
| 66615 | Topeka | 3,201 |
| 66619 | Topeka | 3,081 |
| 66402 | Auburn | 3,080 |
| 66542 | Tecumseh | 2,972 |
| 66539 | Silver Lake | 2,555 |
| 66533 | Rossville | 1,756 |
| 66612 | Topeka | 1,673 |
| 66603 | Topeka | 1,338 |
| 66546 | Wakarusa | 1,113 |
| 66621 | Topeka | 656 |
| 66622 | Topeka | 98 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 24 ZCTAs in Shawnee County, Kansas (US Census).