Civic Result MapsCounty election profile

Pennsylvania · county

Delaware County

FIPS 42045county:42045Proxy

Also indexed as: Delaware

A permanent, source-linked view of the county's 2016, 2020, and 2024 presidential history, turnout, election-administration context, and non-conclusive review signals.

Open state map Compare 2020–2024

Presidential results

2016–2024 county history

3 of 3 years available

Year	Democratic	Republican	Other	Total	Winner / margin	Confidence	Source
2016	177,402Hillary Clinton · 59.60%	110,667Donald Trump · 37.18%	9,565	297,634	Democratic +66,735 (22.42%)	Proxy	Official historical county presidential baseline rows from precinct bulk returns
2020	206,637Joe Biden · 62.90%	118,894Donald Trump · 36.19%	2,978	328,509	Democratic +87,743 (26.71%)	Proxy	Official historical county presidential baseline rows from precinct bulk returns
2024	201,324Kamala Harris · 61.35%	123,421Donald Trump · 37.61%	3,427	328,172	Democratic +77,903 (23.74%)	Exact	Official precinct presidential and Senate returns

“Other” includes all other loaded presidential candidates and write-ins. Margin is the absolute gap between the Democratic and Republican vote buckets, divided by all loaded presidential votes.

Participation

2024 turnout context

Exact

Ballots cast: 330,593
Registered voters: 424,238
Reported/calculated rate: 77.93%
Reporting grain: local

certifiedVoterRegistrationSummary

Official county turnout and registration summary

Administration context

Vote methods

Absentee UOCAVAExact

Voters: 1,602
Share: 0.48%

F1c ? reportedOpen source

In-person early votingUnavailable

Voters: —
Share: —

F1f ? Only 0 of 1 tagged source rows report this vote method.Open source

Mail votesExact

Voters: 87,963
Share: 26.61%

F1d ? reportedOpen source

Mail votes in vote-by-mail jurisdictionUnavailable

Voters: —
Share: —

F1g ? Only 0 of 1 tagged source rows report this vote method.Open source

Other participationUnavailable

Voters: —
Share: —

F1h ? Only 0 of 1 tagged source rows report this vote method.Open source

Physical polling placeExact

Voters: 237,595
Share: 71.87%

F1b ? reportedOpen source

Provisional ballotExact

Voters: 3,433
Share: 1.04%

F1e ? reportedOpen source

Administration context

Voting equipment

1 source-linked row

Equipment metadata is jurisdiction context only. It is not a vote or turnout row, does not prove or disprove an advisory signal, and does not guarantee every precinct or ballot mode used one identical setup.

Vendor	System	Type / use	Paper record	Tabulation	Confidence	Source
Hart InterCivic	Hart InterCivic Verity Touch Writer +	Optical Scan · county_context	hand_marked_paper	Optical Scan	Proxy	Source

Review context

Advisory indicators

1 matched indicator

These calculated indicators are prompts for checking source data, reporting grain, denominators, and local context. They are not evidence or findings of fraud, misconduct, or an incorrect election outcome.

vote share pattern · severity 2.72

Vote-share pattern

Vote-share correlation crossed threshold: Trump r=0.731, Harris r=0.104.

Calculation detail

Bigger local reporting-unit vote totals move with candidate vote share strongly enough to pass the native review threshold. This is an advisory review flag, not proof of tampering.

Traceability

Sources and provenance

5 referenced sources

Canonical geography

Delaware County · county:42045

Geometry registry artifact: pa-counties.geojson

Official historical county presidential baseline rows from precinct bulk returns

Pennsylvania Department of State

Official Pennsylvania Department of State precinct election-return files aggregated to county presidential baselines. Historical rows are contextual baselines only; the official bulk rows do not include a separate write-in reconciliation artifact, so totals can differ from secondary certified-summary tables.Open source

Official precinct presidential and Senate returns

Pennsylvania Department of State

Official Pennsylvania Department of State 2024 General Election Precinct Election Returns bulk file.Open source

Official county turnout and registration summary

Pennsylvania Department of State

Official county vote-history and registered-voter denominator workbook.Open source

equipment_context

Verified Voting Verifier PA 2024 equipment context

Verified Voting

Verified Voting Verifier data is jurisdiction-level election-administration context. Most rows are counties, but some states report state-level rows and some county rows can summarize mixed tabulation, accessible-device, absentee, poll-book, or other configurations. Treat it as source-linked context, not proof every precinct in a county used one identical setup, and not a turnout or vote-result source.Open source

Vote-method context

U.S. EAC Election Administration and Voting Survey

Source authority is recorded in the state package

See the state source package for provenance and caveats.Open source