County ZIP codes · Kansas · FIPS 20177
Shawnee County, KS ZIP Codes
Shawnee County, Kansas has 42 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 28 residential and 14 for PO boxes or a single organization. 24 of the residential ones lie mainly in Shawnee County and 4 mainly in a neighboring county; 13 cross the county line. Median household income ranges from $26,067 in 66612 to $132,821 in 66610 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Shawnee County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $51,893 and $86,607.
They carry 11 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 28 residential ZIP codes in Shawnee County
24 ZIP codes lie mainly in Shawnee County; 4 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 66614 | Topeka | 32,538 | 1,352 | $71k | $194k | 84% |
| 66604 | Topeka | 23,006 | 3,404 | $61k | $139k | 100% |
| 66605 | Topeka | 20,891 | 2,089 | $59k | $171k | 100% |
| 66618 | Topeka | 10,179 | 140 | $110k | $254k | 100% |
| 66607 | Topeka | 9,965 | 1,427 | $30k | $46k | 100% |
| 66610 | Topeka | 9,849 | 223 | $133k | $341k | 92% |
| 66606 | Topeka | 9,842 | 1,708 | $57k | $131k | 100% |
| 66611 | Topeka | 9,828 | 2,973 | $56k | $157k | 100% |
| 66617 | Topeka | 8,903 | 206 | $87k | $233k | 83% |
| 66609 | Topeka | 7,572 | 604 | $68k | $109k | 100% |
| 66616 | Topeka | 6,212 | 1,016 | $52k | $83k | 100% |
| 66608 | Topeka | 4,216 | 970 | $49k | $88k | 100% |
| 66619 | Topeka | 3,217 | 380 | $52k | $90k | 100% |
| 66409 | Berryton | 3,133 | 45 | $105k | $318k | 74% |
| 66402 | Auburn | 3,100 | 69 | $88k | $261k | 97% |
| 66539 | Silver Lake | 3,092 | 75 | $88k | $231k | 96% |
| 66542 | Tecumseh | 3,019 | 93 | $108k | $235k | 100% |
| 66615 | Topeka | 2,943 | 66 | $108k | $291k | 78% |
| 66603 | Topeka | 1,830 | 2,047 | $45k | $108k | 100% |
| 66612 | Topeka | 1,754 | 1,647 | $26k | – | 100% |
| 66533 | Rossville | 1,595 | 30 | $62k | $195k | 96% |
| 66546 | Wakarusa | 1,143 | 30 | $87k | $232k | 91% |
| 66621 | Topeka | 442 | 2,188 | – | – | 100% |
| 66622 | Topeka | 56 | 459 | – | – | 100% |
Partly in Shawnee County
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
13 ZIP codes of Shawnee County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Shawnee | Elsewhere |
|---|---|---|
| 66614 | 84% | Wabaunsee County 16% |
| 66610 | 92% | Wabaunsee County 8% |
| 66617 | 83% | Jefferson County 16%; Jackson County 1% |
| 66536 | 11% | Pottawatomie County 74%; Jackson County 8%; Wabaunsee County 7% |
| 66512 | 5% | Jefferson County 83%; Jackson County 12% |
| 66409 | 74% | Douglas County 24%; Osage County 2% |
| 66402 | 97% | Osage County 3% |
| 66539 | 96% | Jackson County 4% |
| 66615 | 78% | Wabaunsee County 22% |
| 66524 | 3% | Osage County 51%; Douglas County 44%; Franklin County 2% |
| 66533 | 96% | Jackson County 4% |
| 66546 | 91% | Osage County 9% |
| 66431 | 8% | Wabaunsee County 92% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Shawnee County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Shawnee County's ZIP codes use 3 prefixes: 664, 665 and 666.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 664 | Kansas City, MO (SCF 640) | 4 | 37 |
| 665 | Kansas City, MO (SCF 640) | 7 | 44 |
| 666 | Kansas City, MO (SCF 640) | 31 | 31 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.