|San Augustine County, Texas|
The San Augustine County Courthouse
Location in the U.S. state of Texas
Texas's location in the U.S.
|Named for||Augustine of Hippo|
|Largest city||San Augustine|
|• Total||592 sq mi (1,533 km2)|
|• Land||531 sq mi (1,375 km2)|
|• Water||62 sq mi (161 km2), 10%|
|• ( 2010)||8,865|
|• Density||17/sq mi (7/km2)|
|Time zone||Central: UTC−6/ −5|
San Augustine County was formed in 1837. It was supposedly named after the Saint, Augustine of Hippo.  However, it seems plausible that the county was named for the town of San Augustine, which had been established five years earlier and whose name was based upon an 18th-century Spanish presidio (fortress).
- Shelby County (north)
- Sabine County (east)
- Jasper County (south)
- Angelina County (southwest)
- Nacogdoches County (west)
|U.S. Decennial Census
1850–2010  2010–2014 
As of the census  of 2000, there were 8,946 people, 3,575 households, and 2,520 families residing in the county. The population density was 17 people per square mile (7/km²). There were 5,356 housing units at an average density of 10 per square mile (4/km²). The racial makeup of the county was 69.26% White, 27.95% Black or African American, 0.20% Native American, 0.20% Asian, 1.64% from other races, and 0.75% from two or more races. 3.58% of the population were Hispanic or Latino of any race.
There were 3,575 households out of which 26.80% had children under the age of 18 living with them, 53.50% were married couples living together, 13.50% had a female householder with no husband present, and 29.50% were non-families. 27.00% of all households were made up of individuals and 14.90% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 2.93.
In the county, the population was spread out with 23.70% under the age of 18, 6.80% from 18 to 24, 23.00% from 25 to 44, 25.10% from 45 to 64, and 21.40% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 92.10 males. For every 100 females age 18 and over, there were 85.90 males.
The median income for a household in the county was $27,025, and the median income for a family was $32,772. Males had a median income of $28,395 versus $18,925 for females. The per capita income for the county was $15,548. About 15.60% of families and 21.20% of the population were below the poverty line, including 30.70% of those under age 18 and 20.10% of those age 65 or over.
Like many areas of the South, while Republicans generally win federal and state elections, Democrats tend to perform better in down-ballot races for local offices. Identification with the Democratic Party is strong in San Augustine County. In 2012, roughly 24 percent of eligible voters participated in the Democratic primary, while less than 6 percent participated in the Republican primary, despite there being a competitive presidential primary on the Republican ballot. 
- San Augustine (county seat)
- Black Ankle
- White Rock
- White City
- Anthony Harbor
- National Register of Historic Places listings in San Augustine County, Texas
- Recorded Texas Historic Landmarks in San Augustine County
- "State & County QuickFacts". United States Census Bureau. Retrieved December 24, 2013.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- Handbook of Texas Online - SAN AUGUSTINE COUNTY
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved May 10, 2015.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Retrieved May 10, 2015.
- "Texas Almanac: Population History of Counties from 1850–2010" (PDF). Texas Almanac. Retrieved May 10, 2015.
- "American FactFinder". United States Census Bureau. Retrieved 2011-05-14.
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved 2018-07-30.
- "Election Results". www.sos.state.tx.us. Retrieved 2018-07-30.
|Wikimedia Commons has media related to San Augustine County, Texas.|
- San Augustine County government's website
- San Augustine County from the Handbook of Texas Online
- San Augustine County Collection at the Autry National Center
- The American Cyclopædia. 1879. .