ZIP Codes of Clay County, KS

Population & People
Population & People
Total Population
7,988
Household Income
Household Income
Median Income
$65,108
Housing
Housing
Total Housing Units
3,846
Business & Economy
Business & Economy
Total Businesses
246
Employment
Employment
Employment Rate
57.32%
Education
Education
Bachelor's Degree+
25.68%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:785
Timezone:Central (GMT -06:00)
Local Time:11:53:28 PM
Population:7,988 [See All]
FIPS:20027
Land Area:689 sq mi
Water Area:5 sq mi
Coordinates:39.3227, -97.1609
Quick Link:
https://www.zip-codes.com/county/ks-clay.asp
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Kansas's #48 most populous county
7,988 residents across 5 ZIPs — #48 of 106 Kansas counties.

Standout ZIPs in this County


Most Populous
Clay Center · 5,607 people
70.2% of county total
Highest Income
Clay Center · $70,275 median
1.1× county average
Largest Land Area
Clay Center · 364.0 sq mi
Spans the most ground
Fastest Growth
Wakefield · 8.3% (10-yr)
1,399 → 1,515 residents
Most Educated
Clay Center · 27.7% bachelor's+
1,087 of 3,931 adults 25+

Things worth knowing about Clay County


7,988 residents live across 5 ZIPs covering 689 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 8,312 to 7,988 from 2014 to 2024 — a -3.9% change. 2 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 67432 (Clay Center, $70,275 median) and poorest ZIP 67468 (Morganville, $58,068) are 9.8 miles apart — a 1.2× income gap across local geography.

Median home values vary 3.0× across this county — from $74,300 in 67468 (Morganville) to $219,400 in 67458 (Longford).

Density varies across the county — from 3 people/sq mi in 67447 (Green) to 15 in 67432 (Clay Center).

Educational attainment ranges from 12.0% bachelor's+ in 67458 (Longford) to 34.7% in 67447 (Green) — the breadth of educational profiles across the area.

Within Kansas, this is the #48 most populous of 106 counties and ranks #60 for median household income .

Weighted by population, the typical household earns about $68,969 across the county — reflecting what a typical resident sees, not a simple ZIP average.

25.7% of adults age 25+ hold a bachelor's degree or higher (1,443 of 5,620 reporting).

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

Stories about Clay 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
689
square miles
Avg density
11.6
people per sq mi
Population
7,988
across 5 ZIPs
Clay Center
364.0 sq mi
5,607 residents
Wakefield
106.6 sq mi
1,515 residents
Longford
89.8 sq mi
394 residents

Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Clay Center

All ZIP Codes in Clay County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
67432Clay CenterStandard5,607$70,275364.0-5.9%
67487WakefieldStandard1,515$67,813106.68.3%
67458LongfordStandard394$64,09789.8-9.2%
67468MorganvilleStandard265$58,06849.315.7%
67447GreenStandard207$65,28879.3-29.4%

Adjacent & Nearby Counties