County outline
Where Midland County is located
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
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 900.358 | 2,331.917 | 576,229.1 |
| Water | 1.642 | 4.253 | 1,050.9 |
| Total | 902 | 2,336.169 | 577,280 |
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.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 170,722 | 168,667 | 172,955 | 178,641 | 184,075 | 187,855 |
| 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 place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Midland cityCounty seat · Also in 1 other county | 147,565 | +11.1% | 76.2 |
| Odessa cityAlso in 1 other county | 4,317 | +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 equivalent | Population 2025 | Land mi² |
|---|---|---|
| Midland County | 187,855 | 900.4 |
| Martin County | 5,284 | 915 |
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%.
| Bordering county equivalent | Land mi² | Size vs. Midland | Compare |
|---|---|---|---|
| Andrews County | 1,500.7 | 1.7× larger | Compare |
| Upton County | 1,241.3 | 1.4× larger | Compare |
| Martin County | 915 | about the same | Compare |
| Glasscock County | 900.2 | about the same | Compare |
| Ector County | 897.9 | about the same | Compare |
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.
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.
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 rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #849 | Cottle County, Texas | 900.6 | Compare |
| #850 | Midland County, Texas | 900.4 | This county |
| #851 | Dawson County, Texas | 900.3 | Compare |
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.
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.