ZIP Codes of Kearny County, KS

Population & People
Population & People
Total Population
3,723
Household Income
Household Income
Median Income
$84,914
Housing
Housing
Total Housing Units
1,505
Business & Economy
Business & Economy
Total Businesses
83
Employment
Employment
Employment Rate
61.25%
Education
Education
Bachelor's Degree+
18.81%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 2 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:2 ZIP Codes (2 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:620
Timezone:Central (GMT -06:00)
Local Time:11:53:30 PM
Population:3,723 [See All]
FIPS:20093
Land Area:659 sq mi
Water Area:0 sq mi
Coordinates:38.0489, -101.2323
Quick Link:
https://www.zip-codes.com/county/ks-kearny.asp
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Among Kansas's 5 wealthiest counties
#5 statewide, average median income $84,914.

Standout ZIPs in this County


Most Populous
Lakin · 2,763 people
74.2% of county total
Highest Income
Lakin · $88,264 median
1.0× county average
Largest Land Area
Lakin · 546.8 sq mi
Spans the most ground
Fastest Growth
Lakin · 2.1% (10-yr)
2,706 → 2,763 residents
Most Educated
Lakin · 15.6% bachelor's+
280 of 1,793 adults 25+

Things worth knowing about Kearny County


3,723 residents live across 2 ZIPs covering 659 sq mi, served by 2 distinct USPS-recognized cities.

Population moved from 3,831 to 3,723 from 2014 to 2024 — a -2.8% change. 1 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 67860 (Lakin, $88,264 median) and poorest ZIP 67838 (Deerfield, $81,563) are 11.6 miles apart — a 1.1× income gap across local geography.

Median home values vary 1.1× across this county — from $194,400 in 67860 (Lakin) to $215,300 in 67838 (Deerfield).

Density varies across the county — from 5 people/sq mi in 67860 (Lakin) to 9 in 67838 (Deerfield).

Educational attainment ranges from 15.6% bachelor's+ in 67860 (Lakin) to 28.6% in 67838 (Deerfield) — the breadth of educational profiles across the area.

Within Kansas, this is the #74 most populous of 106 counties and ranks #5 for median household income .

Weighted by population, the typical household earns about $86,536 across the county — reflecting what a typical resident sees, not a simple ZIP average.

18.8% of adults age 25+ hold a bachelor's degree or higher (447 of 2,376 reporting).

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

Stories about Kearny 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
659
square miles
Avg density
5.7
people per sq mi
Population
3,723
across 2 ZIPs
Lakin
546.8 sq mi
2,763 residents
Deerfield
111.9 sq mi
960 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.

Lakin

All ZIP Codes in Kearny County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
67860LakinStandard2,763$88,264546.82.1%
67838DeerfieldStandard960$81,563111.9-14.7%

Adjacent & Nearby Counties