In 1913 Dumont was incorporated as the city of South Houston.
In 1980 South Houston had 11,782 inhabitants and 303 businesses.
In 1990 14,207 inhabitants lived in South Houston.
From the 1980 census to the 1990 census, Hispanics began to move into South Houston by an amount between 1,000 and 3,500 per square mile.
Most Hispanics in South Houston were of Mexican descent.
South Houston is within Texas's 29th congressional district; as of 2008 Gene Green is the representative.
The Lewis Food Town grocery store chain is based in South Houston.
South Houston is served by the Pasadena Independent School District.
The following elementary schools serve sections of South Houston:
South Houston, which serves grades 9 through 12, is a part of the Pasadena Independent School District.