Radon levels in Anchorage, Alaska
EPA Zone 3Anchorage lies in Anchorage Municipality, classified EPA Radon Zone 3. The national ZIP-level model does not cover Alaska, so we show the zone only - treat it as a rough indicator and test.
Predicted (model estimate). The pCi/L figures on this page are long-term area averages from a peer-reviewed national model built on millions of real radon tests (2001-2021). They describe the typical home in this area - not your home, which can be several times higher or lower. The EPA radon zone is a separate, 1993 county-level classification. How the numbers work.
What this means for Anchorage
Zone 3 - low potential (< 2 pCi/L). Without a model prediction, rely on a test: see how to test.
ZIP codes in Anchorage
ZIPs that overlap the city, largest share of its land first. Predicted basement and upstairs means are model estimates; ZIPs the model does not cover show a dash.
| ZIP | Share of city | Basement | Upstairs | Grade |
|---|---|---|---|---|
| 99567 | 40% | — | — | no model |
| 99587 | 21% | — | — | no model |
| 99577 | 17% | — | — | no model |
| 99540 | 8% | — | — | no model |
| 99507 | 3% | — | — | no model |
| 99516 | 3% | — | — | no model |
| 99505 | 3% | — | — | no model |
| 99504 | 2% | — | — | no model |
| 99506 | 1% | — | — | no model |
| 99502 | 1% | — | — | no model |
| 99515 | 1% | — | — | no model |
| 99501 | <1% | — | — | no model |
| 99508 | <1% | — | — | no model |
| 99517 | <1% | — | — | no model |
| 99518 | <1% | — | — | no model |
| 99513 | <1% | — | — | no model |
| 99530 | <1% | — | — | no model |
Testing help in Alaska
We link only state program pages we could verify, and Alaska's did not respond when we checked, so start from the EPA state radon contacts page. If a test comes back at 4 pCi/L or higher, mitigation typically costs $800-$2,500 installed; use EPA find-a-professional and read the mitigation guide.
Anchorage radon questions
- Is radon high in Anchorage, Alaska?
- Anchorage is in Anchorage Municipality, EPA Radon Zone 3: Zone 3 - low potential (< 2 pCi/L). The national ZIP-level model covers the conterminous US only, so there is no prediction for Alaska and the zone is the only area-level indicator we can show. The EPA recommends testing every home regardless of zone.
- Should I test for radon in Anchorage?
- Yes. Without model data for Alaska, a test is the only way to know your level. Use a short-term kit on the lowest lived-in floor; if it reads 2 pCi/L or higher, confirm with a long-term test before deciding on mitigation.
← All Alaska counties and cities · Anchorage Municipality · How to test · Methodology