Travis County area

Population and density of Travis County

The Census Bureau estimates that 1,389,670 people lived in Travis County on July 1, 2025. That ranks #31 of 3,222 county equivalents nationally and #5 of 254 in Texas. Since the April 1, 2020 estimates base of 1,290,157, the population has grown by 99,513 (+7.7%), compared with +8.8% for Texas as a whole.

With 994.4 square miles of land, that is 1,398 people per square mile (540 per km²), placing Travis County #128 nationally for density and #6 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 0.458 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 Travis County

22 incorporated places lie at least partly in Travis County. Together they are home to 1,098,285 people (79%); the other 291,385 (21%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Austin city, with 929,657 residents in the county (the city extends into 3 other counties). Among places with at least 1,000 residents in 2020, Manor city grew fastest since then (+68.7%).

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

Metropolitan area

Travis County is a central county of the Austin-Round Rock-San Marcos, TX Metropolitan Statistical Area. Its 5 county equivalents have 2,620,945 residents on 4,219.9 square miles of land; Travis County accounts for 23.6% of the land and 53% of the residents. By combined land it ranks #67 of 393 metropolitan areas, and #25 by population.

ZIP codes

63 ZIP Code Tabulation Areas have land in Travis County; 47 of them have most of their land inside the county, and the others mainly cover neighboring areas.

765747861078612786137861578616786177862078621786347864078641786457865278653786547866078663786647866978701787027870378704787057871278719787217872278723787247872578726787277872878729787307873178732787337873478735787367873778738787397874178742787447874578746787477874878749787507875178752787537875478756787577875878759

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 Travis County

Travis County shares a land border with 6 county equivalents. It has more land than 4 of them. The largest neighbor is Williamson County (1,115.9 mi²) and the smallest is Caldwell County (544.5 mi²). Together with its neighbors, Travis County forms a block of 5,924 mi² of land, of which it holds 16.8%.

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

Travis 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 times as much. Texas’s county land could hold about 263 areas the size of Travis County.

Another way to picture it: the same land area would fill a square about 31.5 miles (50.7 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 Travis County?

Travis County has more land than 2,532 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 Travis County at #745 nationally by total area, 55 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 3%, compared with a national county-equivalent median of 1.2% — 1.8 percentage points higher. 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 Travis 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.