Amphibians and Reptiles in Rockwall County: Texas Cooperative Wildlife Collection list of species found in the county.
Handbook of Texas Online: Current and historical information about Rockwall County.
NAC - National Association of Counties: Rockwall, Texas: Provides county information including population, elected officials, census bureau facts, and capital impact data. Includes Tiger Line data map.
Rockwall County Highway Maps: Provides maps from Texas Department of Transportation.
Rockwall County Taxroll Search: Interactive site which allows searches of property tax records.