ZIP Codes of Blaine County, OK

Population & People
Population & People
Total Population
8,321
Household Income
Household Income
Median Income
$68,017
Housing
Housing
Total Housing Units
4,439
Business & Economy
Business & Economy
Total Businesses
226
Employment
Employment
Employment Rate
48.49%
Education
Education
Bachelor's Degree+
16.99%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 8 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:8 ZIP Codes (8 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:405 / 572 / 580
Timezone:Central (GMT -06:00)
Local Time:2:13:23 PM
Population:8,321 [See All]
FIPS:40011
Land Area:1,021 sq mi
Water Area:14 sq mi
Coordinates:35.9356, -98.4212
Quick Link:
https://www.zip-codes.com/county/ok-blaine.asp
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Notable population decline
Lost 15.1% of residents since 2014.
Wide geographic spread
ZIPs range from 258.2 sq mi down to 1.54 — a 167× sprawl ratio.

Standout ZIPs in this County


Most Populous
Watonga · 3,260 people
39.2% of county total
Highest Income
Greenfield · $81,250 median
1.2× county average
Largest Land Area
Watonga · 258.2 sq mi
Spans the most ground
Fastest Growth
Okeene · 29.7% (10-yr)
1,397 → 1,812 residents
Most Educated
Okeene · 17.7% bachelor's+
181 of 1,022 adults 25+

Things worth knowing about Blaine County


8,321 residents live across 8 ZIPs covering 1,021 sq mi, served by 8 distinct USPS-recognized cities.

Population moved from 9,797 to 8,301 from 2014 to 2024 — a -15.3% change. 1 ZIPs gained residents, 6 lost.

The county's wealthiest ZIP 73043 (Greenfield, $81,250 median) and poorest ZIP 73772 (Watonga, $58,591) are 10.7 miles apart — a 1.4× income gap across local geography.

Median home values vary 1.5× across this county — from $90,000 in 73043 (Greenfield) to $135,400 in 73763 (Okeene).

Density varies across the county — from 2 people/sq mi in 73744 (Hitchcock) to 13 in 73772 (Watonga).

Educational attainment ranges from 12.0% bachelor's+ in 73772 (Watonga) to 28.8% in 73755 (Longdale) — the breadth of educational profiles across the area.

Within Oklahoma, this is the #62 most populous of 78 counties and ranks #18 for median household income .

Weighted by population, the typical household earns about $63,176 across the county — reflecting what a typical resident sees, not a simple ZIP average.

17.0% of adults age 25+ hold a bachelor's degree or higher (950 of 5,593 reporting).

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

Stories about Blaine 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
1,021
square miles
Avg density
8.2
people per sq mi
Population
8,321
across 8 ZIPs
Watonga
258.2 sq mi
3,260 residents
Geary
249.0 sq mi
1,349 residents
Okeene
172.1 sq mi
1,812 residents

Population decline

Blaine County lost 15.1% of residents between 2014 and 2024. ZIPs that shed the largest share:

Watonga
-24.9%
4,341 → 3,260 residents
Longdale
-22.1%
908 → 707 residents
Geary
-21.4%
1,716 → 1,349 residents
Canton
-21.3%
1,022 → 804 residents

All ZIP Codes in Blaine County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
73772WatongaStandard3,260$58,591258.2-24.9%
73763OkeeneStandard1,812$61,868172.129.7%
73040GearyStandard1,349$61,328249.0-21.4%
73724CantonStandard804$70,833118.5-21.3%
73755LongdaleStandard707$78,75098.5-22.1%
73744HitchcockStandard227$63,500101.8-2.2%
73043GreenfieldStandard142$81,25021.1-21.5%
73770SouthardStandard201.5

Adjacent & Nearby Counties