The 2014 Rock Springs, Wyoming, population is 23,125. There are 1,196 people per square mile (population density).
The median age is 31.7. The US median is 37.2. 57.52% of people in Rock Springs, Wyoming, are married. 14.45% are divorced.
The average household size is 2.53 people. 39.20% of people are married, with children. 17.92% have children, but are single.
91.08% of people are white, 0.64% are black, 0.93% are asian, 0.38% are native american, and 1.16% claim 'Other'.
15.76% of the people in Rock Springs, Wyoming, claim hispanic ethnicity (meaning 84.24% are non-hispanic).