ZIP Codes of Kingfisher County, OK

Population & People
Population & People
Total Population
17,006
Household Income
Household Income
Median Income
$75,796
Housing
Housing
Total Housing Units
7,026
Business & Economy
Business & Economy
Total Businesses
542
Employment
Employment
Employment Rate
63.12%
Education
Education
Bachelor's Degree+
25.56%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 7 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:7 ZIP Codes (7 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:405 / 572
Timezone:Central (GMT -06:00)
Local Time:2:13:25 PM
Population:17,006 [See All]
FIPS:40073
Land Area:987 sq mi
Water Area:8 sq mi
Coordinates:35.8984, -97.9539
Quick Link:
https://www.zip-codes.com/county/ok-kingfisher.asp
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Striking education divide
Bachelor's share spans 9.3% to 39.3% — a 30-point gap.

Standout ZIPs in this County


Most Populous
Kingfisher · 7,123 people
41.9% of county total
Highest Income
Cashion · $103,872 median
1.4× county average
Largest Land Area
Kingfisher · 262.7 sq mi
Spans the most ground
Fastest Growth
Cashion · 59.8% (10-yr)
1,559 → 2,492 residents
Most Educated
Cashion · 33.2% bachelor's+
477 of 1,436 adults 25+

Things worth knowing about Kingfisher County


17,006 residents live across 7 ZIPs covering 987 sq mi, served by 7 distinct USPS-recognized cities.

Population moved from 16,340 to 17,006 from 2014 to 2024 — a +4.1% change. 5 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 73016 (Cashion, $103,872 median) and poorest ZIP 73734 (Dover, $54,643) are 15.6 miles apart — a 1.9× income gap across local geography.

Median home values vary 1.9× across this county — from $150,800 in 73734 (Dover) to $285,400 in 73016 (Cashion).

Density varies 15× across the county — from 2 people/sq mi in 73764 (Omega) to 35 in 73016 (Cashion).

Educational attainment ranges from 9.3% bachelor's+ in 73734 (Dover) to 39.3% in 73764 (Omega) — the breadth of educational profiles across the area.

Within Oklahoma, this is the #42 most populous of 78 counties and ranks #9 for median household income .

Weighted by population, the typical household earns about $77,444 across the county — reflecting what a typical resident sees, not a simple ZIP average.

25.6% of adults age 25+ hold a bachelor's degree or higher (2,828 of 11,065 reporting).

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

Stories about Kingfisher 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
987
square miles
Avg density
17.2
people per sq mi
Population
17,006
across 7 ZIPs
Kingfisher
262.7 sq mi
7,123 residents
Hennessey
232.8 sq mi
3,906 residents
Okarche
179.1 sq mi
2,286 residents

All ZIP Codes in Kingfisher County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
73750KingfisherStandard7,123$69,931262.70.6%
73742HennesseyStandard3,906$70,538232.8-11.7%
73016CashionStandard2,492$103,87272.259.8%
73762OkarcheStandard2,286$93,194179.119.6%
73734DoverStandard747$54,64395.3-23.3%
73756LoyalStandard292$62,59676.97.4%
73764OmegaStandard16067.736.8%

Adjacent & Nearby Counties