ZIP 88040 falls in Hidalgo County, New Mexico, where we hold 851 parcels measured as septic county-wide and 1,092 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 88040.
ZCTA 88040 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) |
|---|---|---|---|---|
| Hidalgo County, New Mexico | 86% | — | 851 | 1,092 |
| Grant County, New Mexico | 14% | — | 6,653 | 4,892 |
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 851 parcels measured as septic for Hidalgo County, New Mexico as a whole, not broken out by ZIP.
ZIP 88040 spans 2 counties: Hidalgo County, New Mexico, Grant County, New Mexico.