| ZIP Codes: | 7 ZIP Codes (7 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 620 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:12 PM |
| Population: | 5,368 [See All] |
| FIPS: | 20077 |
| Land Area: | 756 sq mi |
| Water Area: | 1 sq mi |
| Coordinates: | 37.1874, -98.0259 |
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5,368 residents live across 7 ZIPs covering 756 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 5,904 to 5,368 from 2014 to 2024 — a -9.1% change. 1 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 67036 (Danville, $88,194 median) and poorest ZIP 67009 (Attica, $44,375) are 20.7 miles apart — a 2.0× income gap across local geography.
Median home values vary 3.6× across this county — from $26,700 in 67018 (Bluff City) to $96,200 in 67058 (Harper).
Density varies 16× across the county — from 1 people/sq mi in 67018 (Bluff City) to 12 in 67003 (Anthony).
Educational attainment ranges from 16.1% bachelor's+ in 67058 (Harper) to 48.2% in 67036 (Danville) — the breadth of educational profiles across the area.
Within Kansas, this is the #63 most populous of 106 counties and ranks #82 for median household income .
Weighted by population, the typical household earns about $55,035 across the county — reflecting what a typical resident sees, not a simple ZIP average.
22.8% of adults age 25+ hold a bachelor's degree or higher (809 of 3,552 reporting).
7 Standard delivery, 0 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.
Harper County lost 9.1% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 67003 | Anthony | Standard | 2,477 | $50,217 | 202.5 | -10.1% |
| 67058 | Harper | Standard | 1,777 | $62,121 | 206.3 | -10.3% |
| 67009 | Attica | Standard | 796 | $44,375 | 130.7 | -13.3% |
| 67036 | Danville | Standard | 236 | $88,194 | 43.9 | 198.7% |
| 67018 | Bluff City | Standard | 65 | — | 83.9 | -47.6% |
| 67049 | Freeport | Standard | 12 | — | 39.8 | -69.2% |
| 67150 | Waldron | Standard | 5 | — | 48.7 | -44.4% |