ZIP Codes of Quay County, NM

Population & People
Population & People
Total Population
8,503
Household Income
Household Income
Median Income
$39,197
Housing
Housing
Total Housing Units
5,449
Business & Economy
Business & Economy
Total Businesses
209
Employment
Employment
Employment Rate
51.11%
Education
Education
Bachelor's Degree+
19.39%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 8 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:8 ZIP Codes (8 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:575
Timezone:Mountain (GMT -07:00)
Local Time:11:54:31 PM
Population:8,503 [See All]
FIPS:35037
Land Area:3,547 sq mi
Water Area:7 sq mi
Coordinates:35.1639, -103.6092
Quick Link:
https://www.zip-codes.com/county/nm-quay.asp
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Sharp income gradient
Wealthiest ZIP earns 26.2× the poorest — $65,417 vs $2,499.
Among New Mexico's 5 oldest counties
Median age 49.9.

Standout ZIPs in this County


Most Populous
Tucumcari · 6,818 people
80.2% of county total
Highest Income
Mcalister · $65,417 median
1.7× county average
Largest Land Area
Tucumcari · 1,141.1 sq mi
Spans the most ground
Fastest Growth
Tucumcari · 0.4% (10-yr)
6,789 → 6,818 residents
Most Educated
Tucumcari · 19.9% bachelor's+
988 of 4,959 adults 25+

Things worth knowing about Quay County


8,503 residents live across 8 ZIPs covering 3,547 sq mi, served by 8 distinct USPS-recognized cities.

Population moved from 8,789 to 8,503 from 2014 to 2024 — a -3.3% change. 5 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 88427 (Mcalister, $65,417 median) and poorest ZIP 88121 (House, $2,499) are 12.5 miles apart — a 26.2× income gap across local geography.

Median home values vary 4.1× across this county — from $76,500 in 88401 (Tucumcari) to $315,400 in 88411 (Bard).

Density varies 26× across the county — from 0 people/sq mi in 88411 (Bard) to 6 in 88401 (Tucumcari).

Educational attainment ranges from 13.4% bachelor's+ in 88434 (San Jon) to 30.6% in 88121 (House) — the breadth of educational profiles across the area.

Within New Mexico, this is the #27 most populous of 34 counties and ranks #32 for median household income .

Weighted by population, the typical household earns about $46,973 across the county — reflecting what a typical resident sees, not a simple ZIP average.

19.4% of adults age 25+ hold a bachelor's degree or higher (1,206 of 6,219 reporting).

8 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Quay County


Two counties in one

Median household income spans 26.2× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.

Wealthiest ZIP
Mcalister
Median income: $65,417
Population: 139
Bachelor's+: 29.8%
vs
Poorest ZIP (pop >= 500)
House
Median income: $2,499
Population: 165
Bachelor's+: 30.6%
For every $1 of household income in 88121, the typical household in 88427 earns $26.18.

Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
3,547
square miles
Avg density
2.4
people per sq mi
Population
8,503
across 8 ZIPs
Tucumcari
1,141.1 sq mi
6,818 residents
Nara Visa
649.0 sq mi
250 residents
Logan
611.9 sq mi
837 residents

Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Tucumcari

All ZIP Codes in Quay County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
88401TucumcariStandard6,818$49,3451,141.10.4%
88426LoganStandard837$40,000611.9-31.4%
88430Nara VisaStandard250$32,115649.0262.3%
88434San JonStandard218$38,750234.6-45.8%
88121HouseStandard165$2,499297.416.2%
88427McalisterStandard139$65,417279.851.1%
88411BardStandard76$46,250332.82.7%
88433QuayStandard0.0

Adjacent & Nearby Counties