ZIP 71921 falls in Clark County, Arkansas, where we hold 3,566 parcels measured as septic county-wide and 4,149 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 71921.
ZCTA 71921 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) |
|---|---|---|---|---|
| Clark County, Arkansas | 69% | — | 3,566 | 4,149 |
| Pike County, Arkansas | 23% | — | 3,023 | 1,797 |
| Hot Spring County, Arkansas | 8% | — | 7,810 | 3,866 |
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 3,566 parcels measured as septic for Clark County, Arkansas as a whole, not broken out by ZIP.
ZIP 71921 spans 3 counties: Clark County, Arkansas, Pike County, Arkansas, Hot Spring County, Arkansas.