Texas · Census place 4843240

Lockhart, Texas

Lockhart is a city in Caldwell County, Texas with an estimated 17,166 residents on July 1, 2024. It is the 175th largest of 804 incorporated places of 1,000+ people in the state.

Population 2024
17,166
#175 of 804 in Texas
Change since 2020
+19.5%
+2,802 people
Land area
16.2 sq mi
+ 0.03 sq mi water
Density
1,058 / sq mi
State median 1,561
Orange pin: Lockhart. Shaded: its county. Dark pin: Austin.

Lockhart population, 2020 to 2024

Lockhart added 2,802 residents from July 2020 to July 2024, a change of +19.5%. In the latest year it moved by +1,694. Among 384 Texas places of 5,000 or more, that growth ranks 74th; the median place changed by +4.5%. The median place of 5,000+ in Texas has 15,345 people, so Lockhart is 1.1 times that size.

14.4k202014.7k202115.0k202215.5k202317.2k2024
July 1 estimates. The April 2020 estimates base was 14,382. The axis starts above zero so yearly changes are visible.

Lockhart covers 16.22 square miles of land and 0.03 of water, for 1,058 people per square mile of land. The median Texas place of 5,000+ has 1,561, so Lockhart is less dense than the typical town.

What county Lockhart is in

All of Lockhart's residents live in Caldwell County, which had 52,430 residents in 2024. Lockhart holds 32.7% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Lockhart

1 ZIP Code Tabulation Area (ZCTA) overlaps Lockhart by at least 10% of the ZCTA's or the city's land: 78644. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Lockhart is

The Census internal point of Lockhart is at 29.877800, -97.682600. Austin, the capital, is 27.6 miles N in a straight line. The nearest larger place is Kyle, TX (65,833 people), 14.5 miles away. The nearest city of 100,000 or more is New Braunfels, TX, 28.7 miles away.

Internal point

Decimal
29.877800, -97.682600
DMS
29°52'40.08"N 97°40'57.36"W
UTM
14N 627221.3E 3305973.4N
Geohash
9v69cpjdy
Plus code
76X4V8H8+4X

Daylight in Lockhart

At 29.88° N, Lockhart gets about 14 h 04 min of daylight around the June solstice and 10 h 13 min around the December solstice, a swing of 3 h 51 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Lockhart

The eight nearest incorporated places of 1,000+ in Texas, measured between internal points. The closest is Uhland, 8.8 miles away, with 1,885 people.

Questions people ask

What is the population of Lockhart, TX?

17,166 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 2,802 (19.5%) from 14,364 in July 2020.

What county is Lockhart in?

Caldwell County. All of its residents live in that county.

What ZIP codes cover Lockhart?

1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 78644.

How far is Lockhart from Austin?

27.6 miles (44.4 km) in a straight line, heading N from Lockhart.

What is the nearest larger city to Lockhart?

Kyle, TX, with 65,833 residents, 14.5 miles away between internal points.

Sources and data as of

Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.

  1. 01Census Vintage 2024 subcounty population estimates
  2. 02Census 2024 Gazetteer, places
  3. 03Census 2020 ZCTA to place relationship file
  4. 04Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.