Explore Jefferson County
- Guide to local businesses, news, events, lodging, entertainment, points of interest, and people.
- http://www.explorejeffersoncounty.com/

Jefferson County Fair Park
- Official site. Located in Jefferson, Wisconsin. Includes events, facility rental information, directions to the park, and details on the annual County Fair.
- http://www.jeffersoncountyfairpark.com/

Jefferson County
- Official site. County profile, news and events, government information and services.
- http://www.co.jefferson.wi.us/

Explore Wisconsin: Jefferson County
- Area tourism information and business directory.
- http://www.explorewisconsin.com/countypages/jefferson.html

Jefferson County Democrats
- News, upcoming events, Democrat links.
- http://www.jeffdems.org/

Jefferson County Online Visitor's Guide
- Online tourism portal serving the county. Includes restaurants, bars and clubs, recreation and lodging destinations, arts and entertainment, events, community resources, news and media, shopping and services.
- http://www.jctourism.com/