Alamillo ZIP codes, New Mexico
No ZIP code is named for Alamillo, NM; addresses there use a neighbouring town's name. The ZIP code covering it is 87831.
- USPS city name
- 0 ZIP codes
- Overlapping the city
- 1 more
- Population
- 247
- County
- Socorro County
- State
- New Mexico
Alamillo in numbers
About 247 people live in Alamillo, in 102 households. The median age is 64.6; 0.0% of adults 25 and over hold a bachelor's degree or higher (31.0% across New Mexico).
| Population | 247 |
|---|---|
| Households | 102 |
| Median age | 64.6 |
| Bachelor's degree or higher | 0.0% |
| Population density | 206 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Alamillo CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes covering Alamillo
These ZIP codes cover part of Alamillo but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
87831 | San Acacia , NM | Standard | 423 | $12,397 | $160,900 |
Map of Alamillo ZIP codes
The ZIP codes of Alamillo, NM, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Alamillo
The nearest larger towns are Polvadera (1,033 people, 3.4 mi), Lemitar (316 people, 6.7 mi) and Socorro (8,481 people, 14 mi).
| Town | Population | Distance |
|---|---|---|
| Socorro | 8,481 | 13.6 mi |
| Rio Communities | 4,925 | 29.5 mi |
More nearby: every ZIP code in Socorro County · New Mexico ZIP codes
Cite this page
zipcodes.pro. “Alamillo, NM ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nm/alamillo
Underlying data is public domain or openly licensed — sources, vintages and licences.