County outline
Where Inyo County is located
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
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 10,197.261 | 26,410.785 | 6,526,247 |
| Water | 29.838 | 77.28 | 19,096.3 |
| Total | 10,227.099 | 26,488.065 | 6,545,343.4 |
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.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 18,989 | 18,854 | 18,642 | 18,420 | 18,302 | 18,158 |
| 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%.
| Bordering county equivalent | Land mi² | Size vs. Inyo | Compare |
|---|---|---|---|
| San Bernardino County | 20,068.4 | 2× larger | Compare |
| Nye CountyNevada | 18,181.9 | 1.8× larger | Compare |
| Kern County | 8,134.7 | 1.3× smaller | Compare |
| Clark CountyNevada | 7,891.7 | 1.3× smaller | Compare |
| Fresno County | 5,958.6 | 1.7× smaller | Compare |
| Tulare County | 4,823.9 | 2.1× smaller | Compare |
| Esmeralda CountyNevada | 3,581.9 | 2.8× smaller | Compare |
| Mono County | 3,048.9 | 3.3× smaller | Compare |
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.
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.
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 rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #21 | Sweetwater County, Wyoming | 10,427 | Compare |
| #22 | Inyo County, California | 10,197.3 | This county |
| #23 | Harney County, Oregon | 10,134.5 | 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 36.610864, -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.
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.