ZIP Codes of Wilson County, KS

Population & People
Population & People
Total Population
8,133
Household Income
Household Income
Median Income
$59,678
Housing
Housing
Total Housing Units
4,310
Business & Economy
Business & Economy
Total Businesses
194
Employment
Employment
Employment Rate
57.29%
Education
Education
Bachelor's Degree+
21.95%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:620
Timezone:Central (GMT -06:00)
Local Time:2:12:16 PM
Population:8,133 [See All]
FIPS:20205
Land Area:527 sq mi
Water Area:4 sq mi
Coordinates:37.5702, -95.7127
Quick Link:
https://www.zip-codes.com/county/ks-wilson.asp
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Kansas's #47 most populous county
8,133 residents across 5 ZIPs — #47 of 106 Kansas counties.

Standout ZIPs in this County


Most Populous
Fredonia · 3,374 people
41.5% of county total
Highest Income
Buffalo · $70,833 median
1.2× county average
Largest Land Area
Fredonia · 271.0 sq mi
Spans the most ground
Fastest Growth
Neodesha · -1.2% (10-yr)
3,365 → 3,326 residents
Most Educated
Neodesha · 28.3% bachelor's+
633 of 2,236 adults 25+

Things worth knowing about Wilson County


8,133 residents live across 5 ZIPs covering 527 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 8,583 to 8,133 from 2014 to 2024 — a -5.2% change. 1 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 66717 (Buffalo, $70,833 median) and poorest ZIP 66714 (Benedict, $47,361) are 4.5 miles apart — a 1.5× income gap across local geography.

Median home values vary 3.1× across this county — from $46,000 in 66717 (Buffalo) to $140,300 in 66757 (Neodesha).

Density varies across the county — from 5 people/sq mi in 66714 (Benedict) to 30 in 66757 (Neodesha).

Educational attainment ranges from 3.6% bachelor's+ in 66714 (Benedict) to 28.3% in 66757 (Neodesha) — the breadth of educational profiles across the area.

Within Kansas, this is the #47 most populous of 106 counties and ranks #89 for median household income .

Weighted by population, the typical household earns about $63,668 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 (1,254 of 5,714 reporting).

5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Wilson County


Big & sparse

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.

Total area
527
square miles
Avg density
15.4
people per sq mi
Population
8,133
across 5 ZIPs
Fredonia
271.0 sq mi
3,374 residents
Neodesha
111.8 sq mi
3,326 residents
Altoona
63.9 sq mi
804 residents

Population decline

Wilson County lost 5.2% of residents between 2014 and 2024. ZIPs that shed the largest share:

Buffalo
-19.5%
580 → 467 residents

All ZIP Codes in Wilson County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
66736FredoniaStandard3,374$62,443271.0-8.8%
66757NeodeshaStandard3,326$68,083111.8-1.2%
66710AltoonaStandard804$49,67163.95.2%
66717BuffaloStandard467$70,83349.6-19.5%
66714BenedictStandard162$47,36130.7-6.9%

Adjacent & Nearby Counties