Kendall County area

Population and density of Kendall County

The Census Bureau estimates that 53,289 people lived in Kendall County on July 1, 2025. That ranks #986 of 3,222 county equivalents nationally and #73 of 254 in Texas. Since the April 1, 2020 estimates base of 44,301, the population has grown by 8,988 (+20.3%), compared with +8.8% for Texas as a whole.

With 662.5 square miles of land, that is 80 people per square mile (31 per km²), placing Kendall County #1,152 nationally for density and #57 in Texas. The median county equivalent has 47 people per square mile; the Texas median is 22. Put another way, there are about 8 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 Kendall County

2 incorporated places lie at least partly in Kendall County. Together they are home to 26,814 people (50.3%); the other 26,475 (49.7%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Boerne city, with 24,047 residents in the county. By land, Fair Oaks Ranch city is the largest at 12.3 mi² across all its counties. Among places with at least 1,000 residents in 2020, Boerne city grew fastest since then (+34.6%).

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

Metropolitan area

Kendall County is an outlying 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; Kendall County accounts for 9.1% of the land and 1.9% 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

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

780047800678013780157802778070780747860678624

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 Kendall County

Kendall County shares a land border with 6 county equivalents. It has more land than 1 of them. The largest neighbor is Bexar County (1,240.5 mi²) and the smallest is Comal County (559.5 mi²). Together with its neighbors, Kendall County forms a block of 6,124.2 mi² of land, of which it holds 10.8%.

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

Kendall County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.6 times as much. Texas’s county land could hold about 394 areas the size of Kendall County.

Another way to picture it: the same land area would fill a square about 25.7 miles (41.4 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 Kendall County?

Kendall County has more land than 1,806 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 Kendall County at #1,531 nationally by total area, 115 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 Kendall 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.