| County Problems (1970 / 1980/ 1990) | |||||
| A period or dot (.) means the county code was not found for that year. | |||||
| ALASKA: In 1970 there were no counties. Tabulations were prepared for 10 boroughs and 29 divisions. | |||||
| Name | St | 1970 FIPS | 1980 FIPS | 1990 FIPS | Alternate Name |
| Aleutian Islands Census Area | AK | 2010 | 2010 | . | Aleutian Islands Division (1970) |
| Aleutians East Borough | AK | . | . | 2013 | |
| Aleutians West Census Area | AK | . | . | 2016 | |
| Anchorage Borough | AK | 2020 | 2020 | 2020 | Anchorage Division (1970) |
| Angoon Division | AK | 2030 | . | . | |
| Barrow-North Slope Division | AK | 2040 | . | . | |
| Bethel Census Area | AK | 2050 | 2050 | 2050 | Bethel Division (1970) |
| Bristol Bay Borough | AK | 2060 | 2060 | 2060 | |
| Dillingham Census Area | AK | 2070 | 2070 | 2070 | |
| Cordova-McCarthy Division | AK | 2080 | . | . | |
| Fairbanks North Star Borough | AK | 2090 | 2090 | 2090 | Fairbanks Division (1970) |
| Haines Borough | AK | 2100 | 2100 | 2100 | Haines Division (1970) |
| Juneau Borough | AK | 2110 | 2110 | 2110 | Juneau Division (1970) |
| Kenai-Cook Inlet Division | AK | 2120 | . | . | |
| Kenai Peninsula Borough | AK | . | 2122 | 2122 | |
| Ketchikan Gateway Borough | AK | 2130 | 2130 | 2130 | Ketchikan Division (1970) |
| Kobuk Division | AK | 2140 | 2140 | . | |
| Kodiak Island Borough | AK | 2150 | 2150 | 2150 | Kodiak Division (1970) |
| Kuskokwim Division | AK | 2160 | . | . | |
| Lake and Peninsula Borough | AK | . | . | 2164 | |
| Matanuska-Susitna Borough | AK | 2170 | 2170 | 2170 | Matanuska-Susitna Division (1970) |
| Nome Census Area | AK | 2180 | 2180 | 2180 | Nome Division (1970) |
| North Slope Borough | AK | . | 2185 | 2185 | |
| Northwest Arctic Borough | AK | . | . | 2188 | |
| Outer Ketchikan Division | AK | 2190 | . | . | |
| Prince of Wales Division | AK | 2200 | . | . | |
| Pr. of Wales-Outer Ketchikan C | AK | . | 2201 | 2201 | |
| Seward Division | AK | 2210 | . | . | |
| Sitka Borough | AK | 2220 | 2220 | 2220 | Sitka Division (1970) |
| Skagway-Yakutat Division | AK | 2230 | . | . | |
| Skagway-Yakutat-Angoon Census | AK | . | 2231 | 2231 | |
| Southeast Fairbanks Census Are | AK | 2240 | 2240 | 2240 | Southeast Fairbanks Division (1970) |
| Upper Yukon Division | AK | 2250 | . | . | |
| Valdez-Chitina-Whittier Divisi | AK | 2260 | . | . | |
| Valdez-Cordova Census Area | AK | . | 2261 | 2261 | |
| Wade Hampton Census Area | AK | 2270 | 2270 | 2270 | Wade Hampton Division (1970) |
| Wrangell-Petersburg Census Are | AK | 2280 | 2280 | 2280 | Wrangell-Petersburg Division (1970) |
| Yukon-Koyukuk Census Area | AK | 2290 | 2290 | 2290 | Yukon-Koyukuk Division (1970) |