In the , Rockville was among the most socio-economically disadvantaged suburbs of Toowoomba with residents having a median individual income of $388, compared with $448 for the Toowoomba statistical district, and a median family income of $921 compared to $1,116. The suburb had a
SEIFA score of 908, placing it below all other suburbs in the district except
Harlaxton. In the , Rockville had a population of 3,237 people. In the , Rockville had a population of 3,204 people. == Education ==