Midland County area

Midland County, Texas covers 902 square miles: 900.4 square miles of land and 1.642 square miles of water. Its county seat is Midland. An estimated 187,855 people lived there in 2025.

Official Census measurements · GEOID 483292026 Gazetteer · retrieved September 27, 2026
Land area900.4 mi²
Water area1.642 mi²
Population (2025)187,855
People per mi²209

County outline

Generalized outline of Midland County, Texas
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 Midland County is located

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

Area breakdown

Land accounts for 99.8% of Midland County’s measured area and water for 0.2%. Its combined area converts to 2,336.2 square kilometers or approximately 577,280 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land900.3582,331.917576,229.1
Water1.6424.2531,050.9
Total9022,336.169577,280

How Midland County compares

By original Census land area, Midland County ranks #143 of 254 in Texas and #850 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.991 times the Texas county-equivalent median of 908.7 square miles. It accounts for 0.3% of the combined county land area in the state.

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

Population and density of Midland County

The Census Bureau estimates that 187,855 people lived in Midland County on July 1, 2025. That ranks #376 of 3,222 county equivalents nationally and #30 of 254 in Texas. Since the April 1, 2020 estimates base of 170,341, the population has grown by 17,514 (+10.3%), compared with +8.8% for Texas as a whole.

With 900.4 square miles of land, that is 209 people per square mile (81 per km²), placing Midland County #625 nationally for density and #32 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 3.1 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate170,722168,667172,955178,641184,075187,855
Change—−2,055+4,288+5,686+5,434+3,780

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 Midland County

2 incorporated places lie at least partly in Midland County. Together they are home to 151,882 people (80.9%); the other 35,973 (19.1%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Midland city, with 147,565 residents in the county (the city extends into 1 other county). Among places with at least 1,000 residents in 2020, Odessa city grew fastest since then (+13.7%).

Incorporated placePopulation 2025Since 2020Land mi²
Midland cityCounty seat · Also in 1 other county147,565+11.1%76.2
Odessa cityAlso in 1 other county4,317+13.7%52.5

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

Metropolitan area

Midland County is a central county of the Midland, TX Metropolitan Statistical Area. Its 2 county equivalents have 193,139 residents on 1,815.3 square miles of land; Midland County accounts for 49.6% of the land and 97.3% of the residents. By combined land it ranks #173 of 393 metropolitan areas, and #243 by population. It belongs to the Midland-Odessa-Andrews, TX Combined Statistical Area.

County equivalentPopulation 2025Land mi²
Midland County187,855900.4
Martin County5,284915

ZIP codes

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

797017970379705797067970779755797657976679782

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 Midland County

Midland County shares a land border with 5 county equivalents. It has more land than 2 of them. The largest neighbor is Andrews County (1,500.7 mi²) and the smallest is Ector County (897.9 mi²). Together with its neighbors, Midland County forms a block of 6,355.4 mi² of land, of which it holds 14.2%.

Map of Midland County and the 5 county equivalents that border it Glasscock County, Texas: 900.2 mi² landUpton County, Texas: 1,241.3 mi² landEctor County, Texas: 897.9 mi² landMartin County, Texas: 915 mi² landAndrews County, Texas: 1,500.7 mi² land
Midland 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. MidlandCompare
Andrews County1,500.71.7× largerCompare
Upton County1,241.31.4× largerCompare
Martin County915about the sameCompare
Glasscock County900.2about the sameCompare
Ector County897.9about the sameCompare

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

Midland County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.1 times as much. Texas’s county land could hold about 290 areas the size of Midland County.

Land area: Midland County and the closest-sized states
Midland County900.4 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 30 miles (48.3 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 Midland County?

Midland County has more land than 2,372 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Midland County900.4 mi²
Texas median908.7 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 Midland County at #961 nationally by total area, 111 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 0.2%, compared with a national county-equivalent median of 1.2% — 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 Midland County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#849Cottle County, Texas900.6Compare
#850Midland County, Texas900.4This county
#851Dawson County, Texas900.3Compare

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 31.814269, -102.002454. 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: 2,331,915,299 m²; AWATER: 4,252,951 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 Midland County?

Midland County, Texas has 900.4 square miles (2,331.9 km²) of land and 1.642 square miles of water, for a total area of 902 square miles. It ranks #850 of 3,222 U.S. county equivalents by land area.

Is Midland County the largest county in Texas?

No. Midland County ranks #143 of 254 in Texas by land area. The largest is Brewster County, with 6,183.8 square miles of land.

What counties border Midland County?

Midland County shares a land border with Glasscock County, Upton County, Ector County, Martin County, and Andrews County.

What is the population of Midland County?

The Census Bureau estimates Midland County had 187,855 residents on July 1, 2025, ranking #376 of 3,222 county equivalents. That is 209 people per square mile of land.

What is the county seat of Midland County?

The county seat of Midland County is Midland.

What cities and towns are in Midland County?

Midland County has 2 incorporated places. The most populous are Midland city and Odessa city; 35,973 residents live outside any incorporated place.

Is Midland County part of a metropolitan area?

Yes. It is a central county of the Midland, TX Metropolitan Statistical Area, which has 2 county equivalents and 193,139 residents.

How many ZIP codes are in Midland County?

9 ZIP Code Tabulation Areas have land in Midland 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 Midland County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 1.1 times as much land.

How many acres of land are in Midland County?

The land measurement converts to approximately 576,229 acres. Including water, total area is approximately 577,280 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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