ZIP 61810 falls in Vermilion County, Illinois, where we hold 20 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 61810 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) |
|---|---|---|---|---|
| Vermilion County, Illinois | 58% | 20 | — | — |
| Edgar County, Illinois | 22% | 2 | — | — |
| Champaign County, Illinois | 20% | 129 | — | — |
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 61810 spans 3 counties: Vermilion County, Illinois, Edgar County, Illinois, Champaign County, Illinois.