Lake Brownwood is a census-designated place (CDP) located in Brown County in central Texas, United States.

[3] The Lake Brownwood CDP is located in western Brown County along the western arm of Lake Brownwood, a reservoir on Jim Ned Creek and Pecan Bayou.

The CDP is 13 miles (21 km) northwest of Brownwood, the county seat.

[3] As of the 2020 United States census, there were 1,462 people, 580 households, and 347 families residing in the CDP.

About 27.7% of all households were made up of individuals, and 11.3% had someone living alone who was 65 years of age or older.