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

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.
Name	Population	Land area	Density	Median income	Seat	FIPS
Aleutians East Borough	3,479	6,985 sq mi	0.50 per sq mi	$65,365	Sand Point	02013
Aleutians West Census Area	5,240	4,387 sq mi	1.2 per sq mi	$135,500	Not available	02016
Anchorage Municipality	287,155	1,707 sq mi	168 per sq mi	$103,284	Anchorage	02020
Bethel Census Area	18,391	40,655 sq mi	0.45 per sq mi	$73,996	Not available	02050
Bristol Bay Borough	847	481.4 sq mi	1.8 per sq mi	$95,625	Naknek	02060
Chugach Census Area	6,553	9,574 sq mi	0.68 per sq mi	$90,509	Not available	02063
Copper River Census Area	2,666	24,647 sq mi	0.11 per sq mi	$79,250	Not available	02066
Denali Borough	1,616	12,640 sq mi	0.13 per sq mi	$80,781	Healy	02068
Dillingham Census Area	4,483	18,353 sq mi	0.24 per sq mi	$78,533	Not available	02070
Fairbanks North Star Borough	93,972	7,335 sq mi	12.8 per sq mi	$88,267	Fairbanks	02090
Haines Borough	2,068	2,335 sq mi	0.89 per sq mi	$86,927	Haines	02100
Hoonah-Angoon Census Area	2,271	6,560 sq mi	0.35 per sq mi	$61,406	Not available	02105
Juneau City and Borough	31,609	2,703 sq mi	11.7 per sq mi	$101,661	Juneau	02110
Kenai Peninsula Borough	61,951	16,018 sq mi	3.9 per sq mi	$80,538	Soldotna	02122
Ketchikan Gateway Borough	13,549	4,857 sq mi	2.8 per sq mi	$92,885	Ketchikan	02130
Kodiak Island Borough	12,387	6,689 sq mi	1.9 per sq mi	$86,250	Kodiak	02150
Kusilvak Census Area	7,932	17,151 sq mi	0.46 per sq mi	$51,471	Not available	02158
Lake and Peninsula Borough	1,357	23,897 sq mi	0.06 per sq mi	$65,625	King Salmon	02164
Matanuska-Susitna Borough	118,666	24,707 sq mi	4.8 per sq mi	$94,031	Palmer	02170
Nome Census Area	9,830	22,970 sq mi	0.43 per sq mi	$78,681	Not available	02180
North Slope Borough	10,582	88,793 sq mi	0.12 per sq mi	$95,694	Utqiagvik	02185
Northwest Arctic Borough	7,095	35,672 sq mi	0.20 per sq mi	$84,018	Kotzebue	02188
Petersburg Borough	3,394	2,901 sq mi	1.2 per sq mi	$75,125	Petersburg	02195
Prince of Wales-Hyder Census Area	5,777	5,268 sq mi	1.1 per sq mi	$61,156	Not available	02198
Sitka City and Borough	8,319	2,870 sq mi	2.9 per sq mi	$101,727	Sitka	02220
Skagway Municipality	1,104	442.9 sq mi	2.5 per sq mi	$81,136	Skagway	02230
Southeast Fairbanks Census Area	7,270	24,839 sq mi	0.29 per sq mi	$73,882	Not available	02240
Wrangell City and Borough	2,007	2,556 sq mi	0.79 per sq mi	$63,750	Wrangell	02275
Yakutat City and Borough	672	7,628 sq mi	0.09 per sq mi	$85,000	Yakutat	02282
Yukon-Koyukuk Census Area	5,028	145,767 sq mi	0.03 per sq mi	$55,741	Not available	02290

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

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