ZIP code · Alto · New Mexico · United States

ZIP code 88312 — Alto

ZIP code 88312 serves Alto, New Mexico.

Postal code
88312
Single source Value from one source, not cross-checked.
City
Alto
County
Lincoln FIPS 35027
State
New Mexico
Country
United States
Coordinates
33.4314, -105.6776 — precision precise (locality)
View on OpenStreetMap
Population
3,178 (ZCTA, ACS 5-year)
Population density
45 / sq mi
Land area
71.2 sq mi (184.3 km²) (ZCTA, ACS 5-year)
Median household income
$95,479
Per-capita income
$60,449
Median age
62.4
Households
1,488
Housing units
3,219
Median home value
$339,200
Congressional district
NM-1 (119th Congress)
USDA hardiness zone
7a (0 to 5 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Denver (UTC−7 / UTC−6 DST)
Area code
575
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jun (avg high 82°F), coldest Jan (avg low 21°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F495158657382817975675648
Avg low °F212327334047515044352622
Precip in1.11.00.90.71.22.04.34.22.51.70.81.5

NOAA 1991–2020 climate normals from the nearest station: RUIDOSO (4.5 mi) · NOAA NCEI

Places in ZIP 88312

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page