2012 - 2020 Presidential and Senatoral Election Data

State- and county-level election results from the 2012, 2016, and 2020 US presidential elections.

Data is largely sourced from state secretary of state electoral results websites.

Geographical Data

2012 Election Results

2016 Election Results

2020 Election Results

Senate Data

Demographics

Representation

Data Sources

Polygons

https://www.census.gov/geographies/mapping-files/time-series/geo/cartographic-boundary.html

Electoral Votes

https://www.archives.gov/electoral-college/allocation

Alaska

https://www.elections.alaska.gov/doc/info/ElectionResults.php

Alabama

https://www.sos.alabama.gov/alabama-votes/voter/election-information

Arkansas

https://www.sos.arkansas.gov/elections/research/election-results

https://results.enr.clarityelections.com/AR/106124/web.274956/#/detail/100

Arizona

https://azsos.gov/elections/voter-registration-historical-election-data/historical-election-results-information

California

https://www.sos.ca.gov/elections/prior-elections/statewide-election-results

Colorado

https://www.sos.state.co.us/pubs/elections/resultsData.html

Connecticut

https://portal.ct.gov/sots/election-services/election-results/election-results

Delaware

https://elections.delaware.gov/electionresults/election_archive.shtml

Florida

https://results.elections.myflorida.com/

Georgia

https://sos.ga.gov/index.php/Elections/current_and_past_elections_results

Hawaii

https://elections.hawaii.gov/election-results/

Iowa

https://sos.iowa.gov/elections/results/

Idaho

https://sos.idaho.gov/elections-division/election-results/

Illinois

https://www.elections.il.gov/ElectionOperations/DownloadVoteTotals.aspx

Indiana

https://www.in.gov/sos/elections/2400.htm

Kansas

https://sos.ks.gov/elections/elections-statistics.html

https://en.wikipedia.org/wiki/2016_United_States_presidential_election_in_Kansas

https://en.wikipedia.org/wiki/2012_United_States_presidential_election_in_Kansas)

Kentucky

https://elect.ky.gov/results/Pages/default.aspx

Louisiana

https://voterportal.sos.la.gov/static/

Massachusetts

https://electionstats.state.ma.us/

Maryland

https://elections.maryland.gov/county_status_page_root.html

Maine

https://www.maine.gov/sos/cec/elec/results/index.html

Michigan

https://mielections.us/election/results/2020GEN_CENR.html

Minnesota

https://www.sos.state.mn.us/elections-voting/election-results

Missouri

https://www.sos.mo.gov/elections/s_default

Mississippi

https://www.sos.ms.gov/Elections-Voting/Pages/Election-Results-By-Year.aspx

Montana

https://sosmt.gov/elections/results/

https://electionresults.mt.gov/resultsSW.aspx?type=FED&map=CTY

North Carolina

https://er.ncsbe.gov/

North Dakota

https://results.sos.nd.gov/Default.aspx?map=Cty

Nebraska

https://electionresults.nebraska.gov/

New Hampshire

https://sos.nh.gov/elections/elections/election-results/

New Jersey

https://www.state.nj.us/state/elections/election-information-results.shtml

New Mexico

https://www.sos.state.nm.us/

Nevada

https://www.nvsos.gov/sos/elections/election-information/previous-elections/election-results

New York

https://www.elections.ny.gov/2020ElectionResults.html

Ohio

https://www.ohiosos.gov/elections/election-results-and-data/

Oklahoma

https://oklahoma.gov/elections/election-info/election-results.html

Oregon

https://sos.oregon.gov/elections/Pages/electionhistory-stats.aspx

Pennsylvania

https://www.electionreturns.pa.gov/ReportCenter/Reports

Rhode Island

https://www.ri.gov/election/results/

South Carolina

https://www.scvotes.gov/election-results

https://www.enr-scvotes.org/SC/106502/Web02-state.264691/#/?undefined

South Dakota

https://sdsos.gov/elections-voting/election-resources/election-history/default.aspx

Tennessee

https://sos.tn.gov/elections/results

Texas

https://www.sos.state.tx.us/elections/historical/elections-results-archive.shtml

Utah

https://voteinfo.utah.gov/historical-election-results/

Virginia

https://www.elections.virginia.gov/resultsreports/election-results/

https://historical.elections.virginia.gov/

Vermont

https://electionresults.vermont.gov/Index.html#/state

https://electionarchive.vermont.gov/elections/view/68979/

Washington

https://results.vote.wa.gov/results/20201103/

https://results.vote.wa.gov/results/20181106/

https://results.vote.wa.gov/results/20161108/

https://results.vote.wa.gov/results/20121106/

Wisconsin

https://elections.wi.gov/elections-voting/results-all

West Virginia

https://sos.wv.gov/elections/Pages/HistElecResults.aspx

https://results.enr.clarityelections.com/WV/106210/web.264614/

Wyoming

https://sos.wyo.gov/Elections/ElectionResults.aspx