ZIP 71770 falls in Columbia County, Arkansas, where we hold 3,543 parcels measured as septic county-wide and 3,698 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 71770.
ZCTA 71770 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) |
|---|---|---|---|---|
| Columbia County, Arkansas | 74% | — | 3,543 | 3,698 |
| Nevada County, Arkansas | 26% | — | 2,390 | 1,305 |
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 3,543 parcels measured as septic for Columbia County, Arkansas as a whole, not broken out by ZIP.
ZIP 71770 spans 2 counties: Columbia County, Arkansas, Nevada County, Arkansas.