ZIP 12090 falls in Rensselaer County, New York, where we hold 21,629 parcels measured as septic county-wide and 26,950 on sewer. We do not have a per-ZIP parcel count for this county, so this is the county total, not a count specific to ZIP 12090.
ZCTA 12090 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) |
|---|---|---|---|---|
| Rensselaer County, New York | 100% | 2 | 21,629 | 26,950 |
| Washington County, New York | 0% | 143 | — | — |
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 hold 21,629 parcels measured as septic for Rensselaer County, New York as a whole, not broken out by ZIP.
ZIP 12090 spans 2 counties: Rensselaer County, New York, Washington County, New York.