Alaska County Map
Labeled county boundary map and complete directory of all 30 boroughs and census areas in Alaska (AK, State FIPS 02). View 5-digit FIPS codes, county seats, land area in square miles, and official county government websites below.
Showing all 30 boroughs and census areas in Alaska. Use the search box below to filter by county name, 5-digit FIPS code, or county seat.
Alaska County Statistics & Summary
Total Boroughs and Census Areas
30
Largest by Land Area
Yukon-Koyukuk Census Area
Smallest by Land Area
Skagway Municipality
Alaska is divided into organized boroughs and unorganized-borough census areas, which serve as county equivalents for U.S. Census Bureau statistics.
All 30 Boroughs and Census Areas in Alaska (FIPS, County Seat & Official Website)
| Borough or Census Area Name | 5-Digit FIPS | Seat / Administrative Center | Land Area (sq mi) | Coordinates | Official Website |
|---|---|---|---|---|---|
| Aleutians East Borough | 02013 | Sand Point | 6,985.2 | 55.245°, -161.998° | Official Site |
| Aleutians West Census Area | 02016 | — | 4,387.3 | 51.949°, 179.621° | — |
| Anchorage Municipality | 02020 | — | 1,706.8 | 61.174°, -149.284° | Official Site |
| Bethel Census Area | 02050 | — | 40,654.9 | 60.929°, -160.153° | — |
| Bristol Bay Borough | 02060 | Naknek | 481.4 | 58.730°, -156.994° | Official Site |
| Chugach Census Area | 02063 | — | 9,574.5 | 60.489°, -146.203° | — |
| Copper River Census Area | 02066 | — | 24,646.1 | 62.035°, -143.922° | — |
| Denali Borough | 02068 | Healy | 12,641.2 | 63.682°, -150.027° | Official Site |
| Dillingham Census Area | 02070 | — | 18,355.9 | 59.540°, -158.273° | — |
| Fairbanks North Star Borough | 02090 | Fairbanks | 7,334.7 | 64.671°, -146.496° | Official Site |
| Haines Borough | 02100 | Haines | 2,339.1 | 59.098°, -135.576° | Official Site |
| Hoonah-Angoon Census Area | 02105 | — | 6,560 | 58.405°, -135.885° | — |
| Juneau City and Borough | 02110 | — | 2,703 | 58.373°, -134.178° | Official Site |
| Kenai Peninsula Borough | 02122 | Soldotna | 16,017.1 | 60.367°, -152.322° | Official Site |
| Ketchikan Gateway Borough | 02130 | Ketchikan | 4,857.1 | 55.349°, -131.127° | Official Site |
| Kodiak Island Borough | 02150 | Kodiak | 6,689.9 | 57.704°, -153.918° | Official Site |
| Kusilvak Census Area | 02158 | — | 17,151.5 | 62.283°, -163.190° | — |
| Lake and Peninsula Borough | 02164 | King Salmon | 23,896.5 | 58.101°, -156.354° | Official Site |
| Matanuska-Susitna Borough | 02170 | Palmer | 24,703 | 62.266°, -149.504° | Official Site |
| Nome Census Area | 02180 | — | 22,969.9 | 64.784°, -164.189° | — |
| North Slope Borough | 02185 | Utqiagvik | 88,797.6 | 69.449°, -153.473° | Official Site |
| Northwest Arctic Borough | 02188 | Kotzebue | 35,672.3 | 67.005°, -160.022° | Official Site |
| Petersburg Borough | 02195 | Petersburg | 2,901.6 | 57.246°, -132.789° | Official Site |
| Prince of Wales-Hyder Census Area | 02198 | — | 5,268.2 | 55.683°, -133.162° | — |
| Sitka City and Borough | 02220 | — | 2,870.3 | 57.193°, -135.367° | Official Site |
| Skagway Municipality | 02230 | — | 442.9 | 59.650°, -135.255° | Official Site |
| Southeast Fairbanks Census Area | 02240 | — | 24,839.3 | 63.865°, -143.219° | — |
| Wrangell City and Borough | 02275 | — | 2,556.3 | 56.181°, -132.027° | Official Site |
| Yakutat City and Borough | 02282 | — | 7,638.2 | 60.017°, -140.417° | Official Site |
| Yukon-Koyukuk Census Area | 02290 | — | 145,767.5 | 65.386°, -151.705° | — |
How Alaska Boroughs and Census Areas and 5-Digit FIPS Codes Work
In U.S. Census Bureau TIGER/Line geography, Alaska (AK) is assigned the 2-digit state Federal Information Processing Series (FIPS) code 02 and covers 571,409 square miles of land area across 30 boroughs and census areas in the Alaska Time (AKT); parts of the Aleutian Islands are in Hawaii–Aleutian Time zone (with Juneau as the state capital). Every borough or census area in the directory above carries a unique 5-digit GEOID formed by combining state prefix 02 with a 3-digit county code (ranging alphabetically from Aleutians East Borough at 02013 to Yukon-Koyukuk Census Area at 02290).
Because U.S. Postal Service 5-digit ZIP Codes follow mail carrier delivery routes rather than local government borders, many postal addresses in Alaska carry a neighboring city’s mailing name or sit inside a multi-county ZIP Code Tabulation Area (ZCTA). Property tax assessments, deed recording, circuit and county court venue, voter registration precincts, sheriff jurisdiction, and county sales tax rates in Alaska are determined by the legal borough or census area boundary shown on the map above rather than the postal city name on an envelope.
Land area figures in square miles and internal centroid coordinates (INTPTLAT, INTPTLON) come directly from the U.S. Census Bureau’s current TIGERweb State_County benchmark, while 13 administrative seats and 19 verified official government websites are cross-referenced from Wikidata (CC0). Need a clean outline worksheet without county labels, or want to verify which Alaska borough or census area a specific home or business address sits in? Open the Blank Map of Alaska, run a street-segment check on Address to County Lookup, check multi-county postal overlap on ZIP Code to County Lookup, or browse all 50 states on the National U.S. County Map.