Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/NM/SAN-MATEO

San Mateo ZIP codes, New Mexico

No ZIP code is named for San Mateo, NM; addresses there use a neighbouring town's name. The ZIP code covering it is 87020. Its area code is 505.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
602
Area code
505

NANPA lists no telephone rate centre for San Mateo itself, so these are the area codes of the nearest one, Grants (0.0 miles). A town on an area-code boundary can differ from its neighbour.

San Mateo in numbers

About 602 people live in San Mateo, in 166 households. The median household income is $77,745 a year, 21% above the New Mexico median of $64,059 (US: $80,734). The median age is 25.6; 24.5% of adults 25 and over hold a bachelor's degree or higher (31.0% across New Mexico).

Population602San Mateo602
Households166San Mateo166
Median age25.6San Mateo25.6New Mexico39.4US 38.9
Median household income$77,745San Mateo$77,745New Mexico$64,059US $80,734
Bachelor's degree or higher24.5%San Mateo24.5%New Mexico31.0%US 35.7%
Population density217 / sq miSan Mateo217 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place San Mateo CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering San Mateo

These ZIP codes cover part of San Mateo but are addressed as somewhere else.

ZIP codes overlapping San Mateo
ZIP City Type Population Median income Median home
87020 Grants , NM Standard 11,966 $62,746 $154,400

Map of San Mateo ZIP codes

87020

The ZIP codes of San Mateo, 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 San Mateo

The nearest larger towns are Grants (8,951 people, 16 mi), Milan (2,327 people, 17 mi) and McCartys Village (723 people, 19 mi).

Towns near San Mateo
TownPopulationDistance
Grants 8,951 16.5 mi

More nearby: every ZIP code in Cibola County · New Mexico ZIP codes

Cite this page

zipcodes.pro. “San Mateo, NM ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nm/san-mateo

Underlying data is public domain or openly licensed — sources, vintages and licences.