ZIP 80516 falls in Weld County, Colorado, where we hold 2,554 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 80516 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) |
|---|---|---|---|---|
| Weld County, Colorado | 77% | 2,554 | — | — |
| Boulder County, Colorado | 14% | — | — | — |
| Broomfield County, Colorado | 9% | 1 | — | — |
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 80516 spans 3 counties: Weld County, Colorado, Boulder County, Colorado, Broomfield County, Colorado.