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

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zipcodes.pro — STATE/NM/COUNTY/HARDING

Harding County, NM ZIP codes

Harding County, NM has 4 ZIP codes, in 4 towns: 88426, 87743, 87730 and 87733. 2 more cross into it from a neighbouring county: 88415 and 88410.

The county seat is Mosquero.

ZIP codes
4
Partly in it
2 more
Towns
4
County seat
Mosquero
County FIPS
35021
Population
741
Median household income
$48,553
Land area
2,125 sq mi

Harding County ZIP codes by town

Mosquero (county seat)
87733

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Harding County

These ZIP codes lie mostly in a neighbouring county but each cover a twentieth or more of Harding County.

Map of Harding County ZIP codes

87730877338774388426

The ZIP codes of Harding County, 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.

Harding County in numbers

About 741 people live in Harding County, in 286 households, the 33rd most populous of New Mexico's 33 counties. The median household income is $48,553 a year, 24% below the New Mexico median of $64,059 (US: $80,734). The median owner-occupied home is valued at $70,000 (72% below the New Mexico median), and median gross rent is $1,038 a month. The median age is 42.5; 33.3% of adults 25 and over hold a bachelor's degree or higher (31.0% across New Mexico); the average commute takes 21 minutes.

Population741Harding741
Households286Harding286
Median age42.5Harding42.5New Mexico39.4US 38.9
Median household income$48,553Harding$48,553New Mexico$64,059US $80,734
Median home value$70,000Harding$70,000New Mexico$248,100US $332,700
Median gross rent$1,038Harding$1,038New Mexico$1,067US $1,413
Bachelor's degree or higher33.3%Harding33.3%New Mexico31.0%US 35.7%
Mean commute20.6 minHarding20.6 minNew Mexico23.5 minUS 26.4 min
Population density0 / sq miHarding0 / sq mi

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

Largest towns in Harding County

Largest towns in Harding County
TownZIP codesPopulation
Logan 1 740
Roy 1 302
Mills 1 60
Mosquero 1 25

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Harding County.

Not sure you are in Harding County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Harding County, with figures

ZIP codes in Harding County
ZIP City Type Population Median income Median home
87730 Mills , NM Standard 60 $49,375 $56,300
87733 Mosquero , NM Standard 70 — —
87743 Roy , NM Standard 475 $44,766 $53,300
88426 Logan , NM Standard 837 $40,000 $122,600

Cite this page

zipcodes.pro. “Harding County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/nm/county/harding

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