Garrison is a small town in Nacogdoches County, Texas, United States. The population was 789 at the 2020 census.

Garrison may be named for an early settler, Captain Zadock Bonner "Zed" Garrison (April 20, 1829 – January 9, 1909). Captain Garrison served as a First Lieutenant in the First Regiment, Texas Mounted Volunteers during the Civil War.

According to the United States Census Bureau, the city has a total area of 1.2 square miles (3.1 km), all land.

Historical population

Census	Pop.	Note	%±
1890	252		—
1900	530		110.3%
1910	627		18.3%
1920	603		−3.8%
1930	527		−12.6%
1940	770		46.1%
1950	699		−9.2%
1960	951		36.1%
1970	1,082		13.8%
1980	1,059		−2.1%
1990	883		−16.6%
2000	844		−4.4%
2010	895		6.0%
2020	789		−11.8%
U.S. Decennial Census

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

Race	Number	Percentage
White (NH)	468	59.32%
Black or African American (NH)	195	24.71%
Asian (NH)	4	0.51%
Mixed/Multi-Racial (NH)	42	5.32%
Hispanic or Latino	80	10.14%
Total	789

As of the 2020 United States census, there were 789 people, 446 households, and 343 families residing in the city.

As of 2010 Garrison had a population of 895. The median age was 38. The racial makeup of the population was 67.4% white, 24.8% black or African American, 1.3% Asian, 4.7% from some other race and 1.8% from two or more races. 9.3% of the population was Hispanic or Latino of any race.

As of the census of 2000, there were 844 people, 312 households, and 218 families residing in the city. The population density was 727.4 inhabitants per square mile (280.9/km). There were 372 housing units at an average density of 320.6 per square mile (123.8/km). The racial makeup of the city was 67.54% White, 29.03% African American, 0.71% Native American, 0.24% Asian, 1.18% from other races, and 1.30% from two or more races. Hispanic or Latino of any race were 3.32% of the population.

There were 312 households, out of which 32.7% had children under the age of 18 living with them, 45.8% were married couples living together, 20.5% had a female householder with no husband present, and 30.1% were non-families. 26.0% of all households were made up of individuals, and 17.9% had someone living alone who was 65 years of age or older. The average household size was 2.57 and the average family size was 3.10.

In the city, the population was spread out, with 28.8% under the age of 18, 7.8% from 18 to 24, 22.9% from 25 to 44, 17.1% from 45 to 64, and 23.5% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 85.9 males. For every 100 females age 18 and over, there were 76.8 males.

The median income for a household in the city was $20,278, and the median income for a family was $27,639. Males had a median income of $28,654 versus $22,143 for females. The per capita income for the city was $12,222. About 19.1% of families and 20.6% of the population were below the poverty line, including 21.5% of those under age 18 and 20.3% of those age 65 or over.

Garrison is served by the Garrison Independent School District and is home to the Garrison Bulldogs.

• City website