ZIP 95645 falls in Yolo County, California, where we hold 6,247 septic-related documents. We have not classified septic-versus-sewer status for this county, and we do not have a per-ZIP parcel count -- see the county page for what we hold and where the records are kept.
ZCTA 95645 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) |
|---|---|---|---|---|
| Yolo County, California | 39% | 6,247 | — | — |
| Sutter County, California | 35% | — | — | — |
| Colusa County, California | 25% | 7 | — | — |
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 95645 spans 3 counties: Yolo County, California, Sutter County, California, Colusa County, California.