ZIP 72638 falls in Carroll County, Arkansas, where we hold 6,909 parcels measured as septic county-wide and 4,973 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 72638.
ZCTA 72638 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) |
|---|---|---|---|---|
| Carroll County, Arkansas | 95% | — | 6,909 | 4,973 |
| Newton County, Arkansas | 5% | — | 1,585 | 151 |
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 6,909 parcels measured as septic for Carroll County, Arkansas as a whole, not broken out by ZIP.
ZIP 72638 spans 2 counties: Carroll County, Arkansas, Newton County, Arkansas.