Hardin is a city in Liberty County, Texas, United States. Its population was 768 at the 2020 census.

According to the United States Census Bureau, the city has a total area of 2.3 sq mi (6.0 km), all land.

Historical population

Census	Pop.	Note	%±
1980	779		—
1990	563		−27.7%
2000	755		34.1%
2010	819		8.5%
2020	768		−6.2%
U.S. Decennial Census 1850–1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010

Hardin racial composition as of 2020
(NH = Non-Hispanic)

Race	Number	Percentage
White (NH)	640	83.33%
Black or African American (NH)	14	1.82%
Native American or Alaska Native (NH)	1	0.13%
Asian (NH)	2	0.26%
Some Other Race (NH)	2	0.26%
Mixed/Multi-Racial (NH)	21	2.73%
Hispanic or Latino	88	11.46%
Total	768

As of the 2020 United States census, there were 768 people, 302 households, and 183 families residing in the city.

As of the census of 2000, 819 people, 291 households, and 219 families wereresiding in the city. The population density was 329.4 peoplesq mi (127.3/km). The 305 housing units had an average density of 133.1/sq mi (51.4/km). The racial makeup of the city was 98.54% White, 0.53% African American, 0.13% Asian, 0.66% from other races, and 0.13% from two or more races. Hispanics or Latinos of any race were 4.11% of the population.

Of the 291 households, 34.4% had children under 18 living with them, 62.9% were married couples living together, 8.9% had a female householder with no husband present, and 24.7% were not families. About 22.7% of all households were made up of individuals, and 12.4% had someone living alone who was 65 or older. The average household size was 2.59, and the average family size was 3.03.

In the city, the age distribution as 26.0% under 18, 9.1% from 18 to 24, 26.0% from 25 to 44, 24.6% from 45 to 64, and 14.3% who were 65 or older. The median age was 38 years. For every 100 females, there were 99.2 males. For every 100 females age 18 and over, there were 95.5 males.

The median income for a household in the city was $41,016, and for a family was $47,500. Males had a median income of $36,964 versus $19,583 for females. The per capita income for the city was $18,445. About 6.9% of families and 8.7% of the population were below the poverty line, including 10.2% of those under age 18 and 11.0% of those age 65 or over.

The city is served by the Hardin Independent School District. Residents of Hardin ISD are zoned to Lee College.

• Official website