Handbook of Texas Online
- Current and historical information about Polk County.
- http://www.tsha.utexas.edu/handbook/online/articles/PP/hcp6.html

The Political Graveyard: Polk County, Tex.
- Information about politicians that lived or died in the county.
- http://www.politicalgraveyard.com/geo/TX/PL.html

Polk County
- Lists contact information for county and district court offices and includes a map and demographic information.
- http://www.co.polk.tx.us/

Amphibians and Reptiles in Polk County
- Texas Cooperative Wildlife Collection list of species found in the county.
- http://wfscnet.tamu.edu/tcwc/checklist/POLK187.HTM

Alabama-Coushatta Indian Reservation
- In the midst of the Big Thicket forest near Lake Livingston Texas lies Texas' oldest Indian Reservation, home of the Alabama-Coushatta Tribe of Texas.
- http://www.alabama-coushatta.com/

Polk County Chamber of Commerce
- The Official Home Page of East Texas's Polk County, Texas and the Lake Livingston, Texas area.
- http://www.livingston.net/chamber/