ZIP 29581 falls in Horry County, South Carolina, where we hold 689 parcels measured as septic county-wide and 157,043 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 29581.
ZCTA 29581 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) |
|---|---|---|---|---|
| Horry County, South Carolina | 74% | — | 689 | 157,043 |
| Dillon County, South Carolina | 16% | — | — | — |
| Marion County, South Carolina | 11% | — | — | — |
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 689 parcels measured as septic for Horry County, South Carolina as a whole, not broken out by ZIP.
ZIP 29581 spans 3 counties: Horry County, South Carolina, Dillon County, South Carolina, Marion County, South Carolina.