We have 920 parcels measured as septic in ZIP 85602 itself (Cochise County, Arizona), out of 3,400 parcels in our records for this ZIP, of which 2,399 are recorded as on sewer.
ZCTA 85602 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) |
|---|---|---|---|---|
| Cochise County, Arizona | 69% | 28 | 9,130 | 35,082 |
| Pima County, Arizona | 31% | 348,481 | — | — |
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 measured 920 parcels as septic in ZIP 85602 itself, out of 3,400 parcels in our records for this ZIP.
ZIP 85602 spans 2 counties: Cochise County, Arizona, Pima County, Arizona.