Bexar County area

Population and density of Bexar County

The Census Bureau estimates that 2,160,088 people lived in Bexar County on July 1, 2025. That ranks #16 of 3,222 county equivalents nationally and #4 of 254 in Texas. Since the April 1, 2020 estimates base of 2,009,323, the population has grown by 150,765 (+7.5%), compared with +8.8% for Texas as a whole.

With 1,240.5 square miles of land, that is 1,741 people per square mile (672 per km²), placing Bexar County #95 nationally for density and #4 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 0.368 acres of land per resident.

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 Bexar County

28 incorporated places lie at least partly in Bexar County. Together they are home to 1,721,619 people (79.7%); the other 438,469 (20.3%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is San Antonio city, with 1,548,411 residents in the county (the city extends into 2 other counties). Among places with at least 1,000 residents in 2020, Elmendorf city grew fastest since then (+67.2%).

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

Metropolitan area

Bexar County is a central county of the San Antonio-New Braunfels, TX Metropolitan Statistical Area. Its 8 county equivalents have 2,813,140 residents on 7,313.3 square miles of land; Bexar County accounts for 17% of the land and 76.8% of the residents. By combined land it ranks #24 of 393 metropolitan areas, and #24 by population. It belongs to the San Antonio-New Braunfels-Kerrville, TX Combined Statistical Area.

ZIP codes

78 ZIP Code Tabulation Areas have land in Bexar County; 70 of them have most of their land inside the county, and the others mainly cover neighboring areas.

780027800678015780237803978052780697807378101781087810978112781247814878150781527815478201782027820378204782057820778208782097821078211782127821378214782157821678217782187821978220782217822278223782247822578226782277822878229782307823178232782337823478235782367823778238782397824078242782437824478245782477824878249782507825178252782537825478255782567825778258782597826078261782637826478266

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 Bexar County

Bexar County shares a land border with 7 county equivalents. It has more land than 6 of them. The largest neighbor is Medina County (1,325.4 mi²) and the smallest is Comal County (559.5 mi²). Together with its neighbors, Bexar County forms a block of 7,313.3 mi² of land, of which it holds 17%.

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

Bexar County has more land than 1 of the 50 states. It is about 1.2 times the land area of Rhode Island (1,033.9 mi²), while Delaware, the next larger state, has 1.6 times as much land (1,948.6 mi²). Texas’s county land could hold about 211 areas the size of Bexar County.

Another way to picture it: the same land area would fill a square about 35.2 miles (56.7 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 Bexar County?

Bexar County has more land than 2,731 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 Bexar County at #557 nationally by total area, 66 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 1.2%, compared with a national county-equivalent median of 1.2%. The two percentages are within 0.1 percentage points of each other. 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 Bexar County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

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.