Handbook of Texas Online
- Current and historical information about Hill County.
- http://www.tsha.utexas.edu/handbook/online/articles/HH/hch15.html

The Political Graveyard: Hill County, Texas
- Provides information on politicians who lived or died in Hill County, as well as cemeteries and memorial sites.
- http://www.politicalgraveyard.com/geo/TX/HI.html

USGenweb Project - Hill County, Texas
- Provides county information including history of the Courthouse, Genealogy database, and links to historical resources.
- http://www.rootsweb.com/~txhill/

Amphibians and Reptiles in Hill County
- Texas Cooperative Wildlife Collection list of species found in the county.
- http://wfscnet.tamu.edu/tcwc/checklist/HILL109.HTM

Hill County Appraisal District
- Interactive site which allows searches of property tax records.
- http://www.hillcad.org/