Washakie County area

Washakie County, Wyoming covers 2,242.7 square miles: 2,238.7 square miles of land and 4.022 square miles of water. Its county seat is Worland. An estimated 7,597 people lived there in 2025.

Official Census measurements · GEOID 560432026 Gazetteer · retrieved September 27, 2026
Land area2,238.7 mi²
Water area4.022 mi²
Population (2025)7,597
People per mi²3.4

County outline

Generalized outline of Washakie County, Wyoming
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 Washakie County is located

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

Area breakdown

Land accounts for 99.8% of Washakie County’s measured area and water for 0.2%. Its combined area converts to 5,808.6 square kilometers or approximately 1,435,329 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land2,238.6795,798.1521,432,754.6
Water4.02210.4172,574.1
Total2,242.7015,808.5691,435,328.6

How Washakie County compares

By original Census land area, Washakie County ranks #19 of 23 in Wyoming and #250 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.56 times the Wyoming county-equivalent median of 3,996.8 square miles. It accounts for 2.3% of the combined county land area in the state.

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

Population and density of Washakie County

The Census Bureau estimates that 7,597 people lived in Washakie County on July 1, 2025. That ranks #2,676 of 3,222 county equivalents nationally and #20 of 23 in Wyoming. Since the April 1, 2020 estimates base of 7,681, the population has declined by 84 (−1.1%), compared with +2.1% for Wyoming as a whole.

With 2,238.7 square miles of land, that is 3.4 people per square mile (1.3 per km²), placing Washakie County #2,951 nationally for density and #15 in Wyoming. The median county equivalent has 47 people per square mile; the Wyoming median is 4.1. Put another way, there are about 189 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate7,6597,7237,7387,7317,6377,597
Change—+64+15−7−94−40

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 Washakie County

2 incorporated places lie at least partly in Washakie County. Together they are home to 4,990 people (65.7%); the other 2,607 (34.3%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Worland city, with 4,730 residents in the county.

Incorporated placePopulation 2025Since 2020Land mi²
Worland cityCounty seat4,730−1.2%4.588
Ten Sleep town260+3.2%0.188

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

Metropolitan area

Washakie County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.

ZIP codes

2 ZIP Code Tabulation Areas have land in Washakie County, and each lies mostly inside the county.

8240182442

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Washakie County

Washakie County shares a land border with 6 county equivalents. It has more land than 1 of them. The largest neighbor is Fremont County (9,183.6 mi²) and the smallest is Hot Springs County (2,004.4 mi²). Together with its neighbors, Washakie County forms a block of 32,997.4 mi² of land, of which it holds 6.8%.

Map of Washakie County and the 6 county equivalents that border it Hot Springs County, Wyoming: 2,004.4 mi² landBig Horn County, Wyoming: 3,137 mi² landJohnson County, Wyoming: 4,154.2 mi² landNatrona County, Wyoming: 5,340.5 mi² landPark County, Wyoming: 6,939 mi² landFremont County, Wyoming: 9,183.6 mi² land
Washakie 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. WashakieCompare
Fremont County9,183.64.1× largerCompare
Park County6,9393.1× largerCompare
Natrona County5,340.52.4× largerCompare
Johnson County4,154.21.9× largerCompare
Big Horn County3,1371.4× largerCompare
Hot Springs County2,004.41.1× smallerCompare

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

Washakie County has more land than 2 of the 50 states. It is about 1.1 times the land area of Delaware (1,948.6 mi²), while Connecticut, the next larger state, has 2.2 times as much land (4,842.5 mi²). Wyoming’s county land could hold about 43 areas the size of Washakie County.

Land area: Washakie County and the closest-sized states
Delaware1,948.6 mi²
Washakie County2,238.7 mi²
Connecticut4,842.5 mi²

Another way to picture it: the same land area would fill a square about 47.3 miles (76.1 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 Washakie County?

Washakie County has more land than 2,972 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Washakie County2,238.7 mi²
Wyoming median3,996.8 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 Washakie County at #277 nationally by total area, 27 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 0.2%, 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 Washakie County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#249Montrose County, Colorado2,240.9Compare
#250Washakie County, Wyoming2,238.7This county
#251Butte County, Idaho2,236.5Compare

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 43.878831, -107.669052. 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: 5,798,152,485 m²; AWATER: 10,415,891 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 Washakie County?

Washakie County, Wyoming has 2,238.7 square miles (5,798.2 km²) of land and 4.022 square miles of water, for a total area of 2,242.7 square miles. It ranks #250 of 3,222 U.S. county equivalents by land area.

Is Washakie County the largest county in Wyoming?

No. Washakie County ranks #19 of 23 in Wyoming by land area. The largest is Sweetwater County, with 10,427 square miles of land.

What counties border Washakie County?

Washakie County shares a land border with Hot Springs County, Big Horn County, Johnson County, Natrona County, Park County, and Fremont County.

What is the population of Washakie County?

The Census Bureau estimates Washakie County had 7,597 residents on July 1, 2025, ranking #2,676 of 3,222 county equivalents. That is 3.4 people per square mile of land.

What is the county seat of Washakie County?

The county seat of Washakie County is Worland.

What cities and towns are in Washakie County?

Washakie County has 2 incorporated places. The most populous are Worland city and Ten Sleep town; 2,607 residents live outside any incorporated place.

Is Washakie County part of a metropolitan area?

No. Washakie County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.

How many ZIP codes are in Washakie County?

2 ZIP Code Tabulation Areas have land in Washakie County, and 2 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

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

It has more land than 2 of the 50 states, including Delaware (1,948.6 square miles of land).

How many acres of land are in Washakie County?

The land measurement converts to approximately 1,432,755 acres. Including water, total area is approximately 1,435,329 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

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