County outline
Where Garfield County is located
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
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 1,058.507 | 2,741.521 | 677,444.5 |
| Water | 1.574 | 4.077 | 1,007.4 |
| Total | 1,060.081 | 2,745.597 | 678,451.8 |
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.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 62,699 | 61,986 | 61,970 | 62,060 | 62,044 | 61,779 |
| 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 place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Enid cityCounty seat | 50,297 | −1.9% | 73.9 |
| Waukomis town | 1,324 | −1.8% | 2.974 |
| North Enid town | 999 | −1.6% | 2.342 |
| Garber city | 732 | −2.5% | 0.506 |
| Lahoma town | 527 | −2.4% | 0.21 |
| Covington town | 466 | −1.3% | 0.503 |
| Drummond town | 457 | +0.4% | 0.274 |
| Kremlin town | 248 | 0% | 0.254 |
| Breckenridge town | 212 | −1.4% | 15.2 |
| Hunter town | 143 | −1.4% | 0.235 |
| Fairmont town | 129 | −1.5% | 0.238 |
| Carrier town | 91 | −2.2% | 1.228 |
| Hillsdale town | 70 | −1.4% | 0.347 |
| Douglas town | 53 | +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%.
| Bordering county equivalent | Land mi² | Size vs. Garfield | Compare |
|---|---|---|---|
| Grant County | 1,000.7 | 1.1× smaller | Compare |
| Major County | 955 | 1.1× smaller | Compare |
| Kay County | 919.6 | 1.2× smaller | Compare |
| Kingfisher County | 898.1 | 1.2× smaller | Compare |
| Alfalfa County | 866.6 | 1.2× smaller | Compare |
| Logan County | 743.7 | 1.4× smaller | Compare |
| Noble County | 731.7 | 1.4× smaller | Compare |
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.
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.
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 rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #612 | Chautauqua County, New York | 1,060.4 | Compare |
| #613 | Garfield County, Oklahoma | 1,058.5 | This county |
| #614 | Gillespie County, Texas | 1,058.2 | Compare |
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.
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.