The Political Graveyard: Polk County, Nebraska
- Database provides brief biographies of politicians who were born or lived in the county, a cemetery list, and political history.
- http://politicalgraveyard.com/geo/NE/PO.html

Polk County - NEGenWeb
- Highlights online genealogy databases, cemetery records, lookups, and other resources.
- http://polk.wathenadesigns.com/

Polk County Rural Public Power District
- Serves consumers in Polk and parts of Merrick, York, Nance, and Butler Counties. Includes details of programs, the company's history, management list, and billing and payment information.
- http://www.pcrppd.com/