The first European settlement in the area began in 1717 with the establishment of Mission Nuestra Señora de los Dolores de los Ais by Spanish missionaries. The mission was abandoned and reestablished in 1721. It lasted until 1773 and is now preserved as Mission Dolores State Historic Site
According to the United States Census Bureau, the city has a total area of 4.8 square miles (12 km2), of which 4.7 square miles (12 km2) is land and 0.1 square miles (0.26 km2) (2.08%) is water.
Climate
The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, San Augustine has a humid subtropical climate, abbreviated "Cfa" on climate maps.[7]
Climate data for San Augustine, Texas (1991–2020 normals, extremes 1909–1917, 2000–present)
San Augustine city, Texas – Racial and ethnic composition Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.
As of the 2020 United States census, there were 1,920 people, 982 households, and 536 families residing in the city.
As of the census[3] of 2000, there were 2,475 people, 859 households, and 573 families living in the city. The population density was 525.2 inhabitants per square mile (202.8/km2). There were 1,076 housing units at an average density of 228.3 per square mile (88.1/km2). The racial makeup of the city was 37.82% White, 57.94% African American, 0.08% Native American, 0.69% Asian, 3.07% from other races, and 0.40% from two or more races. Hispanic or Latino of any race were 5.13% of the population.
There were 859 households, out of which 29.8% had children under the age of 18 living with them, 37.3% were married couples living together, 26.0% had a female householder with no husband present, and 33.2% were non-families. 30.5% of all households were made up of individuals, and 17.0% 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 3.23.
In the city, the population was spread out, with 26.9% under the age of 18, 8.1% from 18 to 24, 22.6% from 25 to 44, 19.7% from 45 to 64, and 22.7% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 80.4 males. For every 100 females age 18 and over, there were 67.6 males.
The median income for a household in the city was $25,489, and the median income for a family was $33,203. Males had a median income of $23,750 versus $17,628 for females. The per capita income for the city was $14,918. About 19.1% of families and 24.7% of the population were below the poverty line, including 35.0% of those under age 18 and 30.7% of those age 65 or over.