County outline
Where Kusilvak Census Area is located
Area breakdown
Land accounts for 87.2% of Kusilvak Census Area’s measured area and water for 12.8%. Its combined area converts to 50,915.6 square kilometers or approximately 12,581,514 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 17,151.478 | 44,422.124 | 10,976,945.9 |
| Water | 2,507.137 | 6,493.455 | 1,604,567.7 |
| Total | 19,658.615 | 50,915.579 | 12,581,513.6 |
How Kusilvak Census Area compares
By original Census land area, Kusilvak Census Area ranks #11 of 30 in Alaska and #15 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 2.291 times the Alaska county-equivalent median of 7,486.4 square miles. It accounts for 3% of the combined county land area in the state.
See the complete Alaska ranking · What counts as a county equivalent?
Population and density of Kusilvak Census Area
The Census Bureau estimates that 7,932 people lived in Kusilvak Census Area on July 1, 2025. That ranks #2,652 of 3,222 county equivalents nationally and #12 of 30 in Alaska. Since the April 1, 2020 estimates base of 8,364, the population has declined by 432 (−5.2%), compared with +0.5% for Alaska as a whole.
With 17,151.5 square miles of land, that is 0.46 people per square mile (0.18 per km²), placing Kusilvak Census Area #3,197 nationally for density and #18 in Alaska. The median county equivalent has 47 people per square mile; the Alaska median is 0.73. Put another way, there are about 1,384 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 8,367 | 8,376 | 8,191 | 7,997 | 7,956 | 7,932 |
| Change | — | +9 | −185 | −194 | −41 | −24 |
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 Kusilvak Census Area
12 incorporated places lie at least partly in Kusilvak Census Area. Together they are home to 7,712 people (97.2%); the other 220 (2.8%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Hooper Bay city, with 1,297 residents in the county. By land, St. Mary's city is the largest at 44.5 mi².
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Hooper Bay city | 1,297 | −5.5% | 7.284 |
| Chevak city | 898 | −5.4% | 1.092 |
| Emmonak city | 785 | −5% | 5.072 |
| Alakanuk city | 718 | −4.9% | 32 |
| Kotlik city | 624 | −5% | 2.994 |
| Pilot Station city | 587 | −5% | 1.603 |
| Mountain Village city | 585 | −5.3% | 4.2 |
| Scammon Bay city | 574 | −5% | 0.464 |
| St. Mary's city | 567 | −5.3% | 44.5 |
| Marshall city | 468 | −4.9% | 4.056 |
| Russian Mission city | 402 | −5% | 5.367 |
| Nunam Iqua city | 207 | −5% | 12.1 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Kusilvak Census Area. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Kusilvak Census Area 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
12 ZIP Code Tabulation Areas have land in Kusilvak Census Area, and each lies mostly inside the county.
995549956399581995859960499620996329965099657996589966299666
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 Kusilvak Census Area
Kusilvak Census Area shares a land border with 3 county equivalents. Each of them has more land than Kusilvak Census Area. The largest neighbor is Yukon-Koyukuk Census Area (145,767.5 mi²) and the smallest is Nome Census Area (22,969.9 mi²). Together with its neighbors, Kusilvak Census Area forms a block of 226,543.8 mi² of land, of which it holds 7.6%.
| Bordering county equivalent | Land mi² | Size vs. Kusilvak | Compare |
|---|---|---|---|
| Yukon-Koyukuk Census Area | 145,767.5 | 8.5× larger | Compare |
| Bethel Census Area | 40,654.9 | 2.4× larger | Compare |
| Nome Census Area | 22,969.9 | 1.3× larger | Compare |
How big is Kusilvak Census Area compared with U.S. states?
Kusilvak Census Area has more land than 9 of the 50 states. It is about 1.8 times the land area of Maryland (9,711 mi²), while West Virginia, the next larger state, has 1.4 times as much land (24,041.4 mi²). Alaska’s county land could hold about 33 areas the size of Kusilvak Census Area.
Another way to picture it: the same land area would fill a square about 131 miles (210.8 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 Kusilvak Census Area?
Kusilvak Census Area has more land than 3,207 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 Kusilvak Census Area at #13 nationally by total area, 2 places closer to the top than its land rank. The water assigned to this geography moves it ahead of some county equivalents with more land.
Its water share is 12.8%, compared with a national county-equivalent median of 1.2% — 11.6 percentage points higher. 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 Kusilvak Census Area in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #14 | Elko County, Nevada | 17,173.3 | Compare |
| #15 | Kusilvak Census Area, Alaska | 17,151.5 | This county |
| #16 | Kenai Peninsula Borough, Alaska | 16,017.1 | 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 62.283477, -163.190257. 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: 44,422,121,657 m²; AWATER: 6,493,454,105 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 Kusilvak Census Area?
Kusilvak Census Area, Alaska has 17,151.5 square miles (44,422.1 km²) of land and 2,507.1 square miles of water, for a total area of 19,658.6 square miles. It ranks #15 of 3,222 U.S. county equivalents by land area.
Is Kusilvak Census Area the largest county in Alaska?
No. Kusilvak Census Area ranks #11 of 30 in Alaska by land area. The largest is Yukon-Koyukuk Census Area, with 145,767.5 square miles of land.
What counties border Kusilvak Census Area?
Kusilvak Census Area shares a land border with Bethel Census Area, Yukon-Koyukuk Census Area, and Nome Census Area.
What is the population of Kusilvak Census Area?
The Census Bureau estimates Kusilvak Census Area had 7,932 residents on July 1, 2025, ranking #2,652 of 3,222 county equivalents. That is 0.46 people per square mile of land.
What cities and towns are in Kusilvak Census Area?
Kusilvak Census Area has 12 incorporated places. The most populous five are Hooper Bay city, Chevak city, Emmonak city, Alakanuk city, and Kotlik city; 220 residents live outside any incorporated place.
Is Kusilvak Census Area part of a metropolitan area?
No. Kusilvak Census Area is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Kusilvak Census Area?
12 ZIP Code Tabulation Areas have land in Kusilvak Census Area, and 12 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Kusilvak Census Area 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 Kusilvak Census Area?
The land measurement converts to approximately 10,976,946 acres. Including water, total area is approximately 12,581,514 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.