Inyo County area

Inyo County, California covers 10,227.1 square miles: 10,197.3 square miles of land and 29.8 square miles of water. Its county seat is Independence. An estimated 18,158 people lived there in 2025.

Official Census measurements · GEOID 060272026 Gazetteer · retrieved September 27, 2026
Land area10,197.3 mi²
Water area29.8 mi²
Population (2025)18,158
People per mi²1.8

County outline

Generalized outline of Inyo County, California
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 Inyo County is located

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

Area breakdown

Land accounts for 99.7% of Inyo County’s measured area and water for 0.3%. Its combined area converts to 26,488.1 square kilometers or approximately 6,545,343 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land10,197.26126,410.7856,526,247
Water29.83877.2819,096.3
Total10,227.09926,488.0656,545,343.4

How Inyo County compares

By original Census land area, Inyo County ranks #2 of 58 in California and #22 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 6.64 times the California county-equivalent median of 1,535.7 square miles. It accounts for 6.5% of the combined county land area in the state.

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

Population and density of Inyo County

The Census Bureau estimates that 18,158 people lived in Inyo County on July 1, 2025. That ranks #1,987 of 3,222 county equivalents nationally and #52 of 58 in California. Since the April 1, 2020 estimates base of 19,020, the population has declined by 862 (−4.5%), compared with −0.5% for California as a whole.

With 10,197.3 square miles of land, that is 1.8 people per square mile (0.69 per km²), placing Inyo County #3,085 nationally for density and #57 in California. The median county equivalent has 47 people per square mile; the California median is 112. Put another way, there are about 359 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate18,98918,85418,64218,42018,30218,158
Change—−135−212−222−118−144

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 Inyo County

1 incorporated place lies at least partly in Inyo County. Together they are home to 3,696 people (20.4%); the other 14,462 (79.6%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Bishop city, with 3,696 residents in the county.

Metropolitan area

Inyo County is a central county of the Bishop, CA Micropolitan Statistical Area. Inyo County is the area’s only county equivalent, so the micro area has the same 10,197.3 square miles of land. By combined land it ranks #5 of 542 micropolitan areas, and #528 by population.

ZIP codes

14 ZIP Code Tabulation Areas have land in Inyo County; 9 of them have most of their land inside the county, and the others mainly cover neighboring areas.

8901989060890619232892384923899351393514935229352693527935309354593549

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 Inyo County

Inyo County shares a land border with 8 county equivalents, including 3 in Nevada. It has more land than 6 of them. The largest neighbor is San Bernardino County (20,068.4 mi²) and the smallest is Mono County (3,048.9 mi²). Together with its neighbors, Inyo County forms a block of 81,887.2 mi² of land, of which it holds 12.5%.

Map of Inyo County and the 8 county equivalents that border it San Bernardino County, California: 20,068.4 mi² landNye County, Nevada: 18,181.9 mi² landTulare County, California: 4,823.9 mi² landFresno County, California: 5,958.6 mi² landMono County, California: 3,048.9 mi² landEsmeralda County, Nevada: 3,581.9 mi² landKern County, California: 8,134.7 mi² landClark County, Nevada: 7,891.7 mi² land
Inyo 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. InyoCompare
San Bernardino County20,068.42× largerCompare
Nye CountyNevada18,181.91.8× largerCompare
Kern County8,134.71.3× smallerCompare
Clark CountyNevada7,891.71.3× smallerCompare
Fresno County5,958.61.7× smallerCompare
Tulare County4,823.92.1× smallerCompare
Esmeralda CountyNevada3,581.92.8× smallerCompare
Mono County3,048.93.3× smallerCompare

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

Inyo County has more land than 9 of the 50 states. It is about 1.1 times the land area of Maryland (9,711 mi²), while West Virginia, the next larger state, has 2.4 times as much land (24,041.4 mi²). California’s county land could hold about 15 areas the size of Inyo County.

Land area: Inyo County and the closest-sized states
Maryland9,711 mi²
Inyo County10,197.3 mi²
West Virginia24,041.4 mi²

Another way to picture it: the same land area would fill a square about 101 miles (162.5 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 Inyo County?

Inyo County has more land than 3,200 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Inyo County10,197.3 mi²
California median1,535.7 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 Inyo County at #28 nationally by total area, 6 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 0.3%, compared with a national county-equivalent median of 1.2% — 0.9 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 Inyo County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#21Sweetwater County, Wyoming10,427Compare
#22Inyo County, California10,197.3This county
#23Harney County, Oregon10,134.5Compare

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 36.610864, -117.307009. 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: 26,410,783,214 m²; AWATER: 77,280,931 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 Inyo County?

Inyo County, California has 10,197.3 square miles (26,410.8 km²) of land and 29.8 square miles of water, for a total area of 10,227.1 square miles. It ranks #22 of 3,222 U.S. county equivalents by land area.

Is Inyo County the largest county in California?

No. Inyo County ranks #2 of 58 in California by land area. The largest is San Bernardino County, with 20,068.4 square miles of land.

What counties border Inyo County?

Inyo County shares a land border with San Bernardino County, Nye County, Nevada, Tulare County, Fresno County, Mono County, Esmeralda County, Nevada, Kern County, and Clark County, Nevada.

What is the population of Inyo County?

The Census Bureau estimates Inyo County had 18,158 residents on July 1, 2025, ranking #1,987 of 3,222 county equivalents. That is 1.8 people per square mile of land.

What is the county seat of Inyo County?

The county seat of Inyo County is Independence.

Is Inyo County part of a metropolitan area?

Yes. It is a central county of the Bishop, CA Micropolitan Statistical Area.

How many ZIP codes are in Inyo County?

14 ZIP Code Tabulation Areas have land in Inyo County, and 9 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

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

It has more land than 9 of the 50 states, including Maryland (9,711 square miles of land).

How many acres of land are in Inyo County?

The land measurement converts to approximately 6,526,247 acres. Including water, total area is approximately 6,545,343 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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