Garfield County area

Garfield County, Oklahoma covers 1,060.1 square miles: 1,058.5 square miles of land and 1.574 square miles of water. Its county seat is Enid. An estimated 61,779 people lived there in 2025.

Official Census measurements · GEOID 400472026 Gazetteer · retrieved September 27, 2026
Land area1,058.5 mi²
Water area1.574 mi²
Population (2025)61,779
People per mi²58

County outline

Generalized outline of Garfield County, Oklahoma
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Garfield County is located

Garfield County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 99.9% of Garfield County’s measured area and water for 0.1%. Its combined area converts to 2,745.6 square kilometers or approximately 678,452 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land1,058.5072,741.521677,444.5
Water1.5744.0771,007.4
Total1,060.0812,745.597678,451.8

How Garfield County compares

By original Census land area, Garfield County ranks #16 of 77 in Oklahoma and #613 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 1.319 times the Oklahoma county-equivalent median of 802.7 square miles. It accounts for 1.5% of the combined county land area in the state.

See the complete Oklahoma ranking · What counts as a county equivalent?

Population and density of Garfield County

The Census Bureau estimates that 61,779 people lived in Garfield County on July 1, 2025. That ranks #890 of 3,222 county equivalents nationally and #12 of 77 in Oklahoma. Since the April 1, 2020 estimates base of 62,847, the population has declined by 1,068 (−1.7%), compared with +4.1% for Oklahoma as a whole.

With 1,058.5 square miles of land, that is 58 people per square mile (23 per km²), placing Garfield County #1,410 nationally for density and #20 in Oklahoma. The median county equivalent has 47 people per square mile; the Oklahoma median is 28. Put another way, there are about 11 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate62,69961,98661,97062,06062,04461,779
Change—−713−16+90−16−265

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Garfield County

14 incorporated places lie at least partly in Garfield County. Together they are home to 55,748 people (90.2%); the other 6,031 (9.8%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Enid city, with 50,297 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Enid cityCounty seat50,297−1.9%73.9
Waukomis town1,324−1.8%2.974
North Enid town999−1.6%2.342
Garber city732−2.5%0.506
Lahoma town527−2.4%0.21
Covington town466−1.3%0.503
Drummond town457+0.4%0.274
Kremlin town2480%0.254
Breckenridge town212−1.4%15.2
Hunter town143−1.4%0.235
Fairmont town129−1.5%0.238
Carrier town91−2.2%1.228
Hillsdale town70−1.4%0.347
Douglas town53+1.9%0.254

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Garfield County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Garfield County is a central county of the Enid, OK Metropolitan Statistical Area. Garfield County is the area’s only county equivalent, so the metro area has the same 1,058.5 square miles of land. By combined land it ranks #272 of 393 metropolitan areas, and #391 by population.

ZIP codes

22 ZIP Code Tabulation Areas have land in Garfield County; 16 of them have most of their land inside the county, and the others mainly cover neighboring areas.

73056730737370173703737057371873720737277373073733737357373673738737397374373753737547375773761737737463074640

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Garfield County

Garfield County shares a land border with 7 county equivalents. It has more land than every one of them. The largest neighbor is Grant County (1,000.7 mi²) and the smallest is Noble County (731.7 mi²). Together with its neighbors, Garfield County forms a block of 7,174 mi² of land, of which it holds 14.8%.

Map of Garfield County and the 7 county equivalents that border it Grant County, Oklahoma: 1,000.7 mi² landNoble County, Oklahoma: 731.7 mi² landKingfisher County, Oklahoma: 898.1 mi² landMajor County, Oklahoma: 955 mi² landLogan County, Oklahoma: 743.7 mi² landAlfalfa County, Oklahoma: 866.6 mi² landKay County, Oklahoma: 919.6 mi² land
Garfield County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. GarfieldCompare
Grant County1,000.71.1× smallerCompare
Major County9551.1× smallerCompare
Kay County919.61.2× smallerCompare
Kingfisher County898.11.2× smallerCompare
Alfalfa County866.61.2× smallerCompare
Logan County743.71.4× smallerCompare
Noble County731.71.4× smallerCompare

How big is Garfield County compared with U.S. states?

Garfield County has more land than 1 of the 50 states. It is about 1 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.8 times as much land (1,948.6 mi²). Oklahoma’s county land could hold about 65 areas the size of Garfield County.

Land area: Garfield County and the closest-sized states
Rhode Island1,033.9 mi²
Garfield County1,058.5 mi²
Delaware1,948.6 mi²

Another way to picture it: the same land area would fill a square about 32.5 miles (52.4 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Garfield County?

Garfield County has more land than 2,609 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Garfield County1,058.5 mi²
Oklahoma median802.7 mi²
National median604.5 mi²

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Garfield County at #710 nationally by total area, 97 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 0.1%, compared with a national county-equivalent median of 1.2% — 1 percentage points lower. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Garfield County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#612Chautauqua County, New York1,060.4Compare
#613Garfield County, Oklahoma1,058.5This county
#614Gillespie County, Texas1,058.2Compare

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.

Representative coordinates

The Census internal point is 36.378131, -97.788729. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 2,741,521,327 m²; AWATER: 4,075,930 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Garfield County?

Garfield County, Oklahoma has 1,058.5 square miles (2,741.5 km²) of land and 1.574 square miles of water, for a total area of 1,060.1 square miles. It ranks #613 of 3,222 U.S. county equivalents by land area.

Is Garfield County the largest county in Oklahoma?

No. Garfield County ranks #16 of 77 in Oklahoma by land area. The largest is Osage County, with 2,246.7 square miles of land.

What counties border Garfield County?

Garfield County shares a land border with Grant County, Noble County, Kingfisher County, Major County, Logan County, Alfalfa County, and Kay County.

What is the population of Garfield County?

The Census Bureau estimates Garfield County had 61,779 residents on July 1, 2025, ranking #890 of 3,222 county equivalents. That is 58 people per square mile of land.

What is the county seat of Garfield County?

The county seat of Garfield County is Enid.

What cities and towns are in Garfield County?

Garfield County has 14 incorporated places. The most populous five are Enid city, Waukomis town, North Enid town, Garber city, and Lahoma town; 6,031 residents live outside any incorporated place.

Is Garfield County part of a metropolitan area?

Yes. It is a central county of the Enid, OK Metropolitan Statistical Area.

How many ZIP codes are in Garfield County?

22 ZIP Code Tabulation Areas have land in Garfield County, and 16 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Garfield County compare with U.S. states?

It has more land than 1 of the 50 states, including Rhode Island (1,033.9 square miles of land).

How many acres of land are in Garfield County?

The land measurement converts to approximately 677,444 acres. Including water, total area is approximately 678,452 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

Download the complete CSV or JSON dataset