Research Services

Over the past 39 years, Election Data Services has monitored developments in redistricting and election administration, and has conducted studies on voting equipment and congressional reapportionment. The firm has also been contracted by federal, state, and local election organizations to conduct studies on voting issues.

Redistricting Related

Ideal District size chart, by state

Reapportionment of Congress

Election Returns, County Level data back to 1980 

Election Administration Related


Prince William County

Virginia Precinct Level Result Maps


Virginia Statewide General Election 2017
Voter Turnout


Virginia Statewide General Election 2017
Gubernatorial and Lt. Governor Election