| ZIP Codes: | 10 ZIP Codes (7 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Code: | 620 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:13 PM |
| Population: | 31,568 [See All] |
| FIPS: | 20125 |
| Land Area: | 821 sq mi |
| Water Area: | 10 sq mi |
| Coordinates: | 37.1563, -95.7453 |
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31,568 residents live across 10 ZIPs covering 821 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 35,100 to 31,568 from 2014 to 2024 — a -10.1% change. 0 ZIPs gained residents, 10 lost.
The county's wealthiest ZIP 67347 (Havana, $91,250 median) and poorest ZIP 67340 (Dearing, $50,313) are 14.6 miles apart — a 1.8× income gap across local geography.
Median home values vary 2.3× across this county — from $70,800 in 67340 (Dearing) to $161,200 in 67333 (Caney).
Density varies 109× across the county — from 4 people/sq mi in 67344 (Elk City) to 476 in 67364 (Tyro).
Educational attainment ranges from 16.8% bachelor's+ in 67333 (Caney) to 33.4% in 67347 (Havana) — the breadth of educational profiles across the area.
Within Kansas, this is the #18 most populous of 106 counties and ranks #63 for median household income .
Weighted by population, the typical household earns about $55,580 across the county — reflecting what a typical resident sees, not a simple ZIP average.
21.9% of adults age 25+ hold a bachelor's degree or higher (4,643 of 21,180 reporting).
7 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
Montgomery County lost 10.1% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 67301 | Independence | Standard | 12,953 | $54,950 | 212.2 | -0.6% |
| 67337 | Coffeyville | Standard | 10,890 | $51,500 | 148.3 | -16.9% |
| 67335 | Cherryvale | Standard | 3,246 | $56,295 | 127.4 | -0.1% |
| 67333 | Caney | Standard | 2,478 | $63,103 | 52.1 | -20.9% |
| 67344 | Elk City | Standard | 754 | $60,000 | 172.6 | -1.6% |
| 67347 | Havana | Standard | 521 | $91,250 | 61.4 | -5.8% |
| 67351 | Liberty | Standard | 325 | $88,889 | 45.8 | -37.4% |
| 67340 | Dearing | PO Box | 209 | $50,313 | 0.4 | -38.9% |
| 67364 | Tyro | PO Box | 192 | — | 0.4 | -47.5% |
| 67363 | Sycamore | PO Box | 0 | — | 0.2 | -100.0% |