Mercer County Sheriff's Office
- Headquartered in Princeton. Includes profiles, FAQ, history and news.
- http://www.wvmcs.org/

Mercer County Profile
- Provided by the West Virginia Development Office.
- http://www.wv.gov/county.aspx?regID=3&cID=17

Multi-Modal Transportation Plan
- Mercer County, West Virginia transportation study.
- http://www.wvdot.com/3_roadways/rp/

Mercer County Board of Realtors
- Searchable home listings for all of Mercer County and the surrounding area.
- http://www.usamls.net/mercercounty/

AirNav: Mercer County Airport
- Complete aeronautical information about Mercer County Airport (Bluefield, WV, USA), including location, runways, navaids, radio frequencies, FBOs and fuel prices.
- http://www.airnav.com/airport/KBLF

Bluefield/Mercer County Airport
- Includes manager's address, location, services and area attractions.
- http://www.wvdot.com/1_airports/1c3_bluefield.htm

Mercer County, WV Population by Decades
- Population table for the years 1900 to 2000.
- http://recenter.tamu.edu/data/popcd/pc54055.htm

Mercer County Health Profile
- County health statistics for the years 1989 to 1998.
- http://www.wvdhhr.org/bph/oehp/hsc/prof2000/cp28.htm

Village Profile Presents -- Princeton/Bluefield
- Community profile of the Princeton and Bluefield area presented by Village Profile.
- http://www.villageprofile.com/westvirginia/bluefield/main.html