County ZIP codes · Kansas · FIPS 20195
Trego County, KS ZIP Codes
Trego County, Kansas has 8 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 3 of the residential ones lie mainly in Trego County and 5 mainly in a neighboring county; 8 cross the county line.
- ACS2020-24
- Census2020
Where are the ZIP codes of Trego County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All 8 residential ZIP codes in Trego County
3 ZIP codes lie mainly in Trego County; 5 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 67672 | Wakeeney | 2,159 | 7 | $84k | $119k | 84% |
| 67656 | Ogallah | 220 | 2 | $74k | $209k | 88% |
| 67631 | Collyer | 93 | 1 | $82k | $88k | 86% |
Partly in Trego 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?
8 ZIP codes of Trego County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Trego | Elsewhere |
|---|---|---|
| 67637 | 49% | Ellis County50%; Graham County1% |
| 67672 | 84% | Graham County16% |
| 67572 | 47% | Ness County53% |
| 67657 | 1% | Rooks County50%; Graham County49% |
| 67656 | 88% | Graham County12% |
| 67584 | 25% | Ness County45%; Gove County21%; Lane County8% |
| 67521 | 22% | Ness County78% |
| 67631 | 86% | Graham County13%; Sheridan County1% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Trego County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Trego County's ZIP codes use 2 prefixes: 675 and 676.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.