County ProfileKS
Sumner County
Population: 22,382 · 11 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
22,382
People
Median age
41.3
Housing
Total households
8,970
Income
Median household income
$63,951
Housing
Total housing units
10,414
Employment
Employment rate
55.9%
Education
Bachelor’s degree or higher
25.9%
Healthcare
Insured population
91.3%
County details
Local time 02:14:03(CT)| Name | Sumner |
|---|---|
| Total ZIP codes | 11total |
| ZIP codes (by type) | 11 Standard |
| Area code | 620 |
| Timezone | Central Time (CT) |
| Coordinates | 37.2366617, -97.4933519 |
| Land area | 1,181.7 sq miles(3,060.5 km²) |
Map of Sumner county, Kansas with ZIP codes
Cities and Communities in Sumner County
Compare the largest cities in Sumner County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Wellington | 7,715 | $50,333 | 1ZIPs |
| Belle Plaine | 1,467 | $63,214 | 1ZIPs |
| Conway Springs | 1,086 | $73,320 | 1ZIPs |
| Oxford | 1,048 | $59,167 | 1ZIPs |
| Caldwell | 1,025 | $44,286 | 1ZIPs |
| Argonia | 456 | $79,531 | 1ZIPs |
| South Haven | 324 | $78,750 | 1ZIPs |
| Geuda Springs | 158 | $51,528 | 1ZIPs |
| Milton | 155 | $40,000 | 1ZIPs |
| Mayfield | 75 | $52,750 | 1ZIPs |
| Milan | 56 | — | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Sumner County
Review the most populated postal areas across Sumner County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 67152 | Wellington | $52,275 | 9,019 |
| 67013 | Belle Plaine | $69,831 | 2,843 |
| 67031 | Conway Springs | $88,000 | 2,047 |
| 67119 | Oxford | $61,641 | 1,444 |
| 67022 | Caldwell | $60,000 | 1,413 |
| 67004 | Argonia | $77,500 | 733 |
| 67140 | South Haven | $47,236 | 724 |
| 67106 | Milton | $100,345 | 454 |
| 67051 | Geuda Springs | $77,663 | 428 |
| 67103 | Mayfield | $53,750 | 274 |
| 67105 | Milan | $70,625 | 168 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS