Montana · county
FIPS 30057county:30057ExactAlso indexed as: Madison
A permanent, source-linked view of the county's 2016, 2020, and 2024 presidential history, turnout, election-administration context, and non-conclusive review signals.
Presidential results
| Year | Democratic | Republican | Other | Total | Winner / margin | Confidence | Source |
|---|---|---|---|---|---|---|---|
| 2016 | 1,180Hillary Clinton · 24.88% | 3,297Donald Trump · 69.51% | 266 | 4,743 | Republican +2,117 (44.63%) | Exact | Normalized official 2016 and 2020 county presidential baseline CSV |
| 2020 | 1,771Joe Biden · 29.09% | 4,191Donald Trump · 68.85% | 125 | 6,087 | Republican +2,420 (39.76%) | Exact | Normalized official 2016 and 2020 county presidential baseline CSV |
| 2024 | 1,689Kamala Harris · 26.14% | 4,615Donald Trump · 71.43% | 157 | 6,461 | Republican +2,926 (45.29%) | Exact | Official 2024 general election precinct-by-precinct results workbook |
“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
EAC-reported registered-voter denominator
EAC fallback turnout rowsAdministration context
No county-tagged vote-method rows are available.
Administration context
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 |
|---|---|---|---|---|---|---|
| ES&S | ES&S ExpressVote + | Optical Scan · county_context | hand_marked_paper | Optical Scan | Proxy | Source |
Review context
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.
Average President-vs-down-ballot difference crossed threshold: DEM -3.40%, REP 1.27%.
The average gap between presidential votes and same-party down-ballot votes is large enough to review. Split-ticket voting can explain some gap; this flag identifies areas needing supporting records.
Vote-share correlation crossed threshold: Trump r=0.547, Harris r=-0.261.
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
Geometry registry artifact: mt-counties.geojson
Montana Secretary of State
County-level historical baseline rows resolve to Census county FIPS tags. Dem/Rep candidate totals are official workbook totals; other_votes exclude separate write-in canvass votes because the official export does not allocate them into county rows.Open sourceMontana Secretary of State
Candidate-level precinct rows for President and U.S. Senate in one official workbook. Presidential write-ins are not included in this workbook, so the native metrics expose a 27-vote statewide certified gap against the canvass total.Open sourceU.S. Election Assistance Commission
National EAC fallback turnout rows. Prefer state election office denominator artifacts when available; keep fallback caveats visible in the app.Open sourceVerified 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