County Maps US

Alaska County Map

Alaska has 30 boroughs and census areas. That is 13 boroughs, 11 census areas, 4 cities and boroughs, and 2 municipalities, together home to 737,270 people.

Neighbouring areas are given different colours so their shared borders read clearly. These colours carry no data.

Boundaries from the 2025 Census cartographic boundary file, generalised so that no point moves by more than half a pixel at this width. Select any area to open its page.
Boroughs and Census Areas
30
36th most of the 51 states and DC
Population
737,270
48th largest
Land area
571,390
square miles
Density
1.3
people per square mile, computed

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025. Retrieved 30 August 2026.

Download this map

Free to use and redistribute. The boundaries are public-domain Census Bureau data; attribution to County Maps US is appreciated but not required.

Satellite view

Aerial imagery of Alaska with the state boundary drawn on top. County lines are not drawn here: at this scale they would bury the picture, and the map above already carries them.

Aerial view of Alaska from the USGS National Map, with its boundary outlined
Part of this area sits beyond the edge of the Web Mercator projection and is outside the frame. It cannot be shown in one rectangle. Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 759 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

The extremes of Alaska

Most populous

Anchorage Municipality

287,155

Least populous

Yakutat City and Borough

672

Largest by land area

Yukon-Koyukuk Census Area

145,767 sq mi

Smallest by land area

Skagway Municipality

442.9 sq mi

Most densely populated

Anchorage Municipality

168 per sq mi

Highest median household income

Aleutians West Census Area

$135,500

Which is the largest borough in Alaska? The answer depends on whether you mean area or population.

The boroughs and census areas, by shape

Every one, drawn to its own scale so the small ones stay recognisable. Shape alone is not a size comparison; the table below carries the areas.

What the map does not say

The boroughs and census areas of Alaska are nowhere near the same size. Yukon-Koyukuk Census Area covers 145,767 sq mi of land, 329.1 times the 442.9 sq mi of Skagway Municipality. People are spread even less evenly: Anchorage Municipality packs 168 per sq mi while Yukon-Koyukuk Census Area holds 0.03 per sq mi.

They were not drawn in one sitting either. Sitka City and Borough dates to 1799, and the boundaries were still being redrawn when Copper River Census Area was organised in 2019, 220 years later. Founding years come from Wikidata and are worth checking against the county's own history before citing.

Water is part of the picture too: 68.9% of Aleutians West Census Area is water, the most in the state, which is why its land area and total area disagree. And 2 of the 30 boroughs and census areas here share their names with counties in other states, so searching by name alone can land in the wrong place; the A to Z index lists every duplicate.

All 30 boroughs and census areas of Alaska

Sortable on any column. This table doubles as the text alternative to the map above: every area is a link, in alphabetical order, whether or not the map renders.

The 30 boroughs and census areas of Alaska, with population, land area, density, median household income, county seat and FIPS code.
NamePopulationLand areaDensityMedian incomeSeatFIPS
Aleutians East Borough3,4796,985 sq mi0.50 per sq mi$65,365Sand Point02013
Aleutians West Census Area5,2404,387 sq mi1.2 per sq mi$135,500Not available02016
Anchorage Municipality287,1551,707 sq mi168 per sq mi$103,284Anchorage02020
Bethel Census Area18,39140,655 sq mi0.45 per sq mi$73,996Not available02050
Bristol Bay Borough847481.4 sq mi1.8 per sq mi$95,625Naknek02060
Chugach Census Area6,5539,574 sq mi0.68 per sq mi$90,509Not available02063
Copper River Census Area2,66624,647 sq mi0.11 per sq mi$79,250Not available02066
Denali Borough1,61612,640 sq mi0.13 per sq mi$80,781Healy02068
Dillingham Census Area4,48318,353 sq mi0.24 per sq mi$78,533Not available02070
Fairbanks North Star Borough93,9727,335 sq mi12.8 per sq mi$88,267Fairbanks02090
Haines Borough2,0682,335 sq mi0.89 per sq mi$86,927Haines02100
Hoonah-Angoon Census Area2,2716,560 sq mi0.35 per sq mi$61,406Not available02105
Juneau City and Borough31,6092,703 sq mi11.7 per sq mi$101,661Juneau02110
Kenai Peninsula Borough61,95116,018 sq mi3.9 per sq mi$80,538Soldotna02122
Ketchikan Gateway Borough13,5494,857 sq mi2.8 per sq mi$92,885Ketchikan02130
Kodiak Island Borough12,3876,689 sq mi1.9 per sq mi$86,250Kodiak02150
Kusilvak Census Area7,93217,151 sq mi0.46 per sq mi$51,471Not available02158
Lake and Peninsula Borough1,35723,897 sq mi0.06 per sq mi$65,625King Salmon02164
Matanuska-Susitna Borough118,66624,707 sq mi4.8 per sq mi$94,031Palmer02170
Nome Census Area9,83022,970 sq mi0.43 per sq mi$78,681Not available02180
North Slope Borough10,58288,793 sq mi0.12 per sq mi$95,694Utqiagvik02185
Northwest Arctic Borough7,09535,672 sq mi0.20 per sq mi$84,018Kotzebue02188
Petersburg Borough3,3942,901 sq mi1.2 per sq mi$75,125Petersburg02195
Prince of Wales-Hyder Census Area5,7775,268 sq mi1.1 per sq mi$61,156Not available02198
Sitka City and Borough8,3192,870 sq mi2.9 per sq mi$101,727Sitka02220
Skagway Municipality1,104442.9 sq mi2.5 per sq mi$81,136Skagway02230
Southeast Fairbanks Census Area7,27024,839 sq mi0.29 per sq mi$73,882Not available02240
Wrangell City and Borough2,0072,556 sq mi0.79 per sq mi$63,750Wrangell02275
Yakutat City and Borough6727,628 sq mi0.09 per sq mi$85,000Yakutat02282
Yukon-Koyukuk Census Area5,028145,767 sq mi0.03 per sq mi$55,741Not available02290

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

The ten most populous

  1. Anchorage Municipality287,155
  2. Matanuska-Susitna Borough118,666
  3. Fairbanks North Star Borough93,972
  4. Kenai Peninsula Borough61,951
  5. Juneau City and Borough31,609
  6. Bethel Census Area18,391
  7. Ketchikan Gateway Borough13,549
  8. Kodiak Island Borough12,387
  9. North Slope Borough10,582
  10. Nome Census Area9,830

Data on this page last rebuilt 30 August 2026. How these figures are produced.