ZIP 99503 falls in Bethel County, Alaska. We have not measured septic data for this county yet. The county page below has what we do know: where records are kept and whether the portal is public.
ZCTA 99503 is not entirely inside one county. Land-area share is from the 2020 Census ZCTA-to-county relationship file.
| County | Land in this ZIP | Documents held | On septic (county) | On sewer (county) |
|---|---|---|---|---|
| Bethel County, Alaska | 84% | — | — | — |
| Anchorage County, Alaska | 16% | 2,235 | — | — |
2 businesses on record with an address in this ZIP: pumping, installation, design, inspection and repair. Not an endorsement, and we take no fee.
| Company | City | Phone | Rating |
|---|---|---|---|
| A+ Home Services | Anchorage | (907) 345-1890 | 4.0 (4) |
| Core and Main | Anchorage | (907) 563-3315 | 3.0 (2) |
Land-area overlap is from the 2020 Census Bureau ZCTA5-to-county relationship file, not an estimate of ours. Parcel and document counts are rows we hold, not a survey of every property in the ZIP. Last verified 2026-09-01.
We have not measured septic-versus-sewer status for this county yet.
ZIP 99503 spans 2 counties: Bethel County, Alaska, Anchorage County, Alaska.