ZIP Codes of Grant County, KS

Population & People
Population & People
Total Population
7,293
Household Income
Household Income
Median Income
$66,923
Housing
Housing
Total Housing Units
2,982
Business & Economy
Business & Economy
Total Businesses
207
Employment
Employment
Employment Rate
64.91%
Education
Education
Bachelor's Degree+
25.17%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 1 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:1 ZIP Codes (1 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:620
Timezone:Central (GMT -06:00)
Local Time:11:53:30 PM
Population:7,293 [See All]
FIPS:20067
Land Area:611 sq mi
Water Area:0 sq mi
Coordinates:37.6412, -101.3084
Quick Link:
https://www.zip-codes.com/county/ks-grant.asp
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Kansas's #51 most populous county
7,293 residents across 1 ZIPs — #51 of 106 Kansas counties.

Standout ZIPs in this County


Most Populous
Ulysses · 7,293 people
100.0% of county total
Highest Income
Ulysses · $66,923 median
1.0× county average
Largest Land Area
Ulysses · 610.9 sq mi
Spans the most ground
Fastest Growth
Ulysses · -8.6% (10-yr)
7,975 → 7,293 residents
Most Educated
Ulysses · 25.2% bachelor's+
1,157 of 4,597 adults 25+

Things worth knowing about Grant County


7,293 residents live across 1 ZIPs covering 611 sq mi, served by 1 distinct USPS-recognized cities.

Population moved from 7,975 to 7,293 from 2014 to 2024 — a -8.6% change. 0 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 67880 (Ulysses, $66,923 median) and poorest ZIP 67880 (Ulysses, $66,923) are 0.0 miles apart — a 1.0× income gap across local geography.

Within Kansas, this is the #51 most populous of 106 counties and ranks #52 for median household income .

Weighted by population, the typical household earns about $66,923 across the county — reflecting what a typical resident sees, not a simple ZIP average.

25.2% of adults age 25+ hold a bachelor's degree or higher (1,157 of 4,597 reporting).

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

Stories about Grant 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
611
square miles
Avg density
11.9
people per sq mi
Population
7,293
across 1 ZIPs
Ulysses
610.9 sq mi
7,293 residents

Population decline

Grant County lost 8.6% of residents between 2014 and 2024.

All ZIP Codes in Grant County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
67880UlyssesStandard7,293$66,923610.9-8.6%

Adjacent & Nearby Counties