County ZIP codes · Kansas · FIPS 20125
Montgomery County, KS ZIP Codes
Montgomery County, Kansas has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 10 of the residential ones lie mainly in Montgomery County and 1 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $51,500 in 67337 (Coffeyville) to $68,083 in 66757 (Neodesha) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Montgomery 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 $54,950 and $63,103.
They carry 11 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 11 residential ZIP codes in Montgomery County
10 ZIP codes lie mainly in Montgomery County; 1 more reaches into it from a neighboring county and follows the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 67301 | Independence | 12,953 | 60 | $55k | $120k | 100% |
| 67337 | Coffeyville | 10,890 | 74 | $52k | $75k | 72% |
| 67335 | Cherryvale | 3,246 | 26 | $56k | $106k | 58% |
| 67333 | Caney | 2,478 | 46 | $63k | $161k | 100% |
| 67344 | Elk City | 754 | 5 | $60k | $95k | 55% |
| 67347 | Havana | 521 | 8 | $91k | $161k | 61% |
| 67351 | Liberty | 325 | 7 | $89k | $130k | 80% |
| 67340 | Dearing | 209 | 260 | $50k | $71k | 100% |
| 67364 | Tyro | 192 | 427 | – | $132k | 100% |
| 67363 | Sycamore | no residents | 0 | – | – | 100% |
Partly in Montgomery County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 66757 | Neodesha | 3,326 | 29 | $68k | $140k | 24% |
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?
6 ZIP codes of Montgomery County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Montgomery | Elsewhere |
|---|---|---|
| 67337 | 72% | Labette County 28% |
| 66757 | 24% | Wilson County 76% |
| 67335 | 58% | Labette County 40%; Wilson County 2% |
| 67344 | 55% | Chautauqua County 33%; Elk County 13% |
| 67347 | 61% | Chautauqua County 39% |
| 67351 | 80% | Labette County 20% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Montgomery County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Montgomery County's ZIP codes use 2 prefixes: 667 and 673.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.