Valencia County area

Valencia County, New Mexico covers 1,067.8 square miles: 1,066.7 square miles of land and 1.093 square miles of water. Its county seat is Los Lunas. An estimated 82,013 people lived there in 2025.

Official Census measurements · GEOID 350612026 Gazetteer · retrieved September 27, 2026
Land area1,066.7 mi²
Water area1.093 mi²
Population (2025)82,013
People per mi²77

County outline

Generalized outline of Valencia County, New Mexico
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Valencia County is located

Valencia County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 99.9% of Valencia County’s measured area and water for 0.1%. Its combined area converts to 2,765.6 square kilometers or approximately 683,398 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land1,066.7172,762.784682,698.9
Water1.0932.831699.5
Total1,067.812,765.615683,398.4

How Valencia County compares

By original Census land area, Valencia County ranks #32 of 33 in New Mexico and #606 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.284 times the New Mexico county-equivalent median of 3,758 square miles. It accounts for 0.9% of the combined county land area in the state.

See the complete New Mexico ranking · What counts as a county equivalent?

Population and density of Valencia County

The Census Bureau estimates that 82,013 people lived in Valencia County on July 1, 2025. That ranks #723 of 3,222 county equivalents nationally and #6 of 33 in New Mexico. Since the April 1, 2020 estimates base of 76,335, the population has grown by 5,678 (+7.4%), compared with +0.4% for New Mexico as a whole.

With 1,066.7 square miles of land, that is 77 people per square mile (30 per km²), placing Valencia County #1,188 nationally for density and #4 in New Mexico. The median county equivalent has 47 people per square mile; the New Mexico median is 6.9. Put another way, there are about 8.3 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate76,49577,46178,23679,25480,89482,013
Change—+966+775+1,018+1,640+1,119

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Valencia County

5 incorporated places lie at least partly in Valencia County. Together they are home to 40,787 people (49.7%); the other 41,226 (50.3%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Los Lunas village, with 20,572 residents in the county. Among places with at least 1,000 residents in 2020, Los Lunas village grew fastest since then (+18.3%).

Incorporated placePopulation 2025Since 2020Land mi²
Los Lunas villageCounty seat20,572+18.3%20.5
Belen city7,589+3.4%19.2
Rio Communities city4,953+0.5%7.694
Bosque Farms village4,174+3.9%3.935
Peralta town3,499+4.4%4.446

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Valencia County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Valencia County is an outlying county of the Albuquerque, NM Metropolitan Statistical Area. Its 4 county equivalents have 925,279 residents on 9,283.8 square miles of land; Valencia County accounts for 11.5% of the land and 8.9% of the residents. By combined land it ranks #7 of 393 metropolitan areas, and #64 by population. It belongs to the Albuquerque-Santa Fe-Los Alamos, NM Combined Statistical Area.

County equivalentPopulation 2025Land mi²
Bernalillo County667,6011,161.7
Sandoval County159,5653,710.2
Valencia County82,0131,066.7
Torrance County16,1003,345.2

ZIP codes

9 ZIP Code Tabulation Areas have land in Valencia County; 5 of them have most of their land inside the county, and the others mainly cover neighboring areas.

870028700687023870268703187042870608706287068

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Valencia County

Valencia County shares a land border with 4 county equivalents. Each of them has more land than Valencia County. The largest neighbor is Socorro County (6,646.4 mi²) and the smallest is Bernalillo County (1,161.7 mi²). Together with its neighbors, Valencia County forms a block of 16,760 mi² of land, of which it holds 6.4%.

Map of Valencia County and the 4 county equivalents that border it Socorro County, New Mexico: 6,646.4 mi² landBernalillo County, New Mexico: 1,161.7 mi² landCibola County, New Mexico: 4,540 mi² landTorrance County, New Mexico: 3,345.2 mi² land
Valencia County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. ValenciaCompare
Socorro County6,646.46.2× largerCompare
Cibola County4,5404.3× largerCompare
Torrance County3,345.23.1× largerCompare
Bernalillo County1,161.71.1× largerCompare

How big is Valencia County compared with U.S. states?

Valencia County has more land than 1 of the 50 states. It is about 1 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.8 times as much land (1,948.6 mi²). New Mexico’s county land could hold about 114 areas the size of Valencia County.

Land area: Valencia County and the closest-sized states
Rhode Island1,033.9 mi²
Valencia County1,066.7 mi²
Delaware1,948.6 mi²

Another way to picture it: the same land area would fill a square about 32.7 miles (52.6 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Valencia County?

Valencia County has more land than 2,616 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Valencia County1,066.7 mi²
New Mexico median3,758 mi²
National median604.5 mi²

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Valencia County at #705 nationally by total area, 99 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 0.1%, compared with a national county-equivalent median of 1.2% — 1.1 percentage points lower. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Valencia County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#605Dolores County, Colorado1,067.2Compare
#606Valencia County, New Mexico1,066.7This county
#607Gonzales County, Texas1,066.7Compare

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.

Representative coordinates

The Census internal point is 34.716840, -106.806582. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 2,762,784,378 m²; AWATER: 2,830,008 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Valencia County?

Valencia County, New Mexico has 1,066.7 square miles (2,762.8 km²) of land and 1.093 square miles of water, for a total area of 1,067.8 square miles. It ranks #606 of 3,222 U.S. county equivalents by land area.

Is Valencia County the largest county in New Mexico?

No. Valencia County ranks #32 of 33 in New Mexico by land area. The largest is Catron County, with 6,924.2 square miles of land.

What counties border Valencia County?

Valencia County shares a land border with Socorro County, Bernalillo County, Cibola County, and Torrance County.

What is the population of Valencia County?

The Census Bureau estimates Valencia County had 82,013 residents on July 1, 2025, ranking #723 of 3,222 county equivalents. That is 77 people per square mile of land.

What is the county seat of Valencia County?

The county seat of Valencia County is Los Lunas.

What cities and towns are in Valencia County?

Valencia County has 5 incorporated places. The most populous are Los Lunas village, Belen city, Rio Communities city, Bosque Farms village, and Peralta town; 41,226 residents live outside any incorporated place.

Is Valencia County part of a metropolitan area?

Yes. It is an outlying county of the Albuquerque, NM Metropolitan Statistical Area, which has 4 county equivalents and 925,279 residents.

How many ZIP codes are in Valencia County?

9 ZIP Code Tabulation Areas have land in Valencia County, and 5 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Valencia County compare with U.S. states?

It has more land than 1 of the 50 states, including Rhode Island (1,033.9 square miles of land).

How many acres of land are in Valencia County?

The land measurement converts to approximately 682,699 acres. Including water, total area is approximately 683,398 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

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