Richwood is a city in Brazoria County, Texas, United States.

[5] It is bordered to the southwest by Oyster Creek, which separates it from the cities of Lake Jackson and Clute.

[4] As of the 2020 United States census, there were 4,781 people, 1,438 households, and 889 families residing in the city.

22.8% of all households were made up of individuals, and 2.5% had someone living alone who was 65 years of age or older.

The city is served by the Brazosport Independent School District (BISD).