State of New Hampshire - Plainfield
- Part of the state's official site. Town's mailing address, population, county, and districts for election purposes. Includes related links.
- http://www.nh.gov/municipal/plainfie.html

Plainfield NH Resource Guide
- Offers community calendar, directories for businesses, churches, and organizations; municipal phone numbers, health and social services, and area links.
- http://homepage.fcgnetworks.net/plfdlib/

Plainfield, NH
- Official site has links to town resource guide, census data, maps, weather, and local ISPs.
- http://www.plainfield.nh.us/