All results pulled from official state records or state party websites.
Caucus results from some territories pulled from the party's official Facebook pages. 

FEB 3
IA https://results.thecaucuses.org/
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FEB 11
NH https://sos.nh.gov/elections/elections/election-results/2020/2020-presidential-primary/democratic/
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FEB 22
NV https://www.thegreenpapers.com/P20/NV-D ****(Reporting site no longer online.)
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FEB 29
SC https://www.enr-scvotes.org/SC/100517/Web02-state.242137/#/
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MAR 3
AL https://www.sos.alabama.gov/alabama-votes/voter/election-information/2020
AS https://www.nbcnews.com/politics/2020-primary-elections/american-samoa-results
AR https://results.enr.clarityelections.com/AR/101561/web.245375/#/summary
CA https://elections.cdn.sos.ca.gov/sov/2020-primary/sov/complete-sov.pdf
CO https://www.sos.state.co.us/pubs/elections/Results/2020/2020StateAbstractCertificateAndResults.pdf
ME https://www.maine.gov/sos/cec/elec/results/results20.html#pres20
MA https://electionstats.state.ma.us/elections/search/year_from:2020/year_to:2020/office_id:1/stage:Primaries
MN https://www.sos.state.mn.us/elections-voting/election-results/2020/2020-presidential-primary-results/
NC https://er.ncsbe.gov/?election_dt=03/03/2020&county_id=0&office=FED&contest=2861
OK https://www.ok.gov/elections/Election_Info/2020_March_PPP_and_Special_Elections.html
TN https://sos-tn-gov-files.tnsosfiles.com/2020 PPP Democratic State Totals.pdf
TX https://results.texas-election.com/races
UT https://voteinfo.utah.gov/wp-content/uploads/sites/42/2020/04/2020-Presidential-Primary-Election-State-Canvass.pdf
VT https://sos.vermont.gov/media/dsxnfxk4/2020presprimaryofficialcanvass.pdf
VA https://results.elections.virginia.gov/vaelections/2020 March Democratic Presidential Primary/Site/Presidential.html
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MAR 10
ID https://www.livevoterturnout.com/Idaho/LiveResults/1/en/Index_111.html
MI https://mielections.us/election/results/2020PPR_CENR.html
MS https://www.sos.ms.gov/Elections-Voting/Pages/2020-Democratic-Primary.aspx
MO https://enr.sos.mo.gov/
ND https://demnpl.com/sanders-wins-north-dakota-in-high-turnout-election/
WA https://results.vote.wa.gov/results/20200310/
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MAR 14
MP https://www.saipantribune.com/index.php/sanders-wins-democratic-partys-cnmi-caucus/?fbclid=IwAR1zVaZJJ9aLwq8iB3L74_hr1XaGz4ToTIkDFHzGtUxdalTu-77IWwnygT8
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MAR 17
AZ https://azsos.gov/sites/default/files/PPE Canvass Signed 3.30.2020.pdf
FL https://results.elections.myflorida.com/Index.asp?ElectionDate=3/17/2020&DATAMODE=
IL https://elections.il.gov/ElectionOperations/ElectionVoteTotals.aspx
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MAR 23
DA https://www.democratsabroad.org/2020_gpp_results
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APR 11
AK https://static1.squarespace.com/static/54bee0c9e4b0441ce96c4681/t/5e9285f45e4b116e0989bde9/1586660853240/April+11+2020+Alaska+Results+PRP++.pdf
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APR 13
WI https://elections.wi.gov/sites/elections.wi.gov/files/Canvass Results Summary_spring election all contests_4_7_2020.pdf
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APR 17
WY https://www.wyodems.org/2020caucusresults
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APR 28
OH https://www.sos.state.oh.us/elections/election-results-and-data/2020/
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MAY 2
KS https://kansasdems.org/2020primaryresults
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MAY 12
NE https://sos.nebraska.gov/sites/sos.nebraska.gov/files/doc/elections/2020/2020 Primary Canvass Book.pdf
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MAY 19
OR https://sos.oregon.gov/elections/Documents/results/may-primary-2020.pdf
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MAY 23
HI https://hawaiidemocrats.org/wp-content/uploads/2020/05/HawaiiDemocraticPartySOVFinalRevF.pdf
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JUN 2
IN https://enr.indianavoters.in.gov/site/index.html
MD https://elections.maryland.gov/elections/2020/results/Primary/gen_results_2020_3_001-.html
MT https://electionresults.mt.gov/resultsSW.aspx?type=FED&map=CTY
NM https://electionresults.sos.state.nm.us/resultsSW.aspx?type=FED&map=CTY
PA https://www.electionreturns.pa.gov/
RI https://www.ri.gov/election/results/2020/presidential_preference_primary/
SD https://sdsos.gov/elections-voting/assets/2020PrimaryStateCanvassReportandCertificate.pdf
DC https://electionresults.dcboe.org/election_results/2020-Primary-Election
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JUN 6
GU https://www.facebook.com/guamdemocrats/photos/a.317254865048631/2993913067382784
VI https://www.facebook.com/democratsvi/photos/a.908135735904728/3472228096162133
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JUN 9
GA https://results.enr.clarityelections.com/GA/103613/web.255599/#/summary
WV https://results.enr.clarityelections.com/WV/103231/web.254232/#/summary
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JUN 23
KY https://results.enr.clarityelections.com/KY/103779/web.255599/#/summary
NY https://nyenr.elections.ny.gov/
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JUL 7
DE https://elections.delaware.gov/results/html/index.shtml?electionId=PP2020
NJ https://www.state.nj.us/state/elections/assets/pdf/election-results/2020/2020-official-primary-results-president.pdf
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JUL 11
LA https://voterportal.sos.la.gov/static/2020-07-11/resultsRace/Statewide
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JUL 12
PR http://democrata2020.ceepur.org/ESCRUTINIO_GENERAL_89/index.html#es/default_list/PRESIDENTE_Distritos_Senatoriales.xml
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AUG 11
CT https://portal.ct.gov/SOTS/Election-Services/Election-Results/Election-Results