Sun Valley is located in Lamar County, TX. The population is 127, making Sun Valley the 8th largest city in Lamar County.
There are 0 public schools in Sun Valley with an average Homefacts rating of NA. The total crime rate for Sun Valley is low , and there are 0 registered sex offenders residing in the city. Unemployment in Sun Valley is very high and the median home sales price is $0. Detailed and up-to-date Sun Valley property reports are available for any property address.