Civic Result MapsCounty election profile

Iowa · county

Sioux County

FIPS 19167county:19167Proxy

Also indexed as: Sioux

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

2016–2024 county history

3 of 3 years available
YearDemocraticRepublicanOtherTotalWinner / marginConfidenceSource
20162,300Hillary Clinton · 12.64%14,785Donald Trump · 81.26%1,10918,194Republican +12,485 (68.62%)ProxyHistorical county presidential baseline rows
20203,019Joe Biden · 15.85%15,680Donald Trump · 82.31%35219,051Republican +12,661 (66.46%)ProxyHistorical county presidential baseline rows
20242,626Kamala Harris · 13.82%16,053Donald Trump · 84.49%32219,001Republican +13,427 (70.66%)ExactOfficial 2024 county detail XML result reports

“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

Derived
Ballots cast
19,120
Registered voters
23,781
Reported/calculated rate
80.40%
Reporting grain
aggregate of precinct rows

officialCountyReport

Official 2024 county detail XML result reports

Administration context

Vote methods

No county-tagged vote-method rows are available.

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.

VendorSystemType / usePaper recordTabulationConfidenceSource
UnisynUnisyn OpenElect FVT +Optical Scan · county_contexthand_marked_paperOptical ScanProxySource

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 3.19

Vote-share pattern

Vote-share correlation crossed threshold: Trump r=-0.054, Harris r=0.786.

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

3 referenced sources
Canonical geography

Sioux County · county:19167

Geometry registry artifact: ia-counties.geojson

Historical county presidential baseline rows

Historical county presidential baseline rows

Wikipedia county presidential tables with state election office source footnotes

Secondary normalized historical baseline used for context only. Individual rows carry the per-year page URL; use these rows as historical context, not as 2024 certified data or a replacement for official Iowa Secretary of State results.Open source
Official 2024 county detail XML result reports

Official 2024 county detail XML result reports

Iowa Secretary of State

Official county-level Clarity report ZIPs. Each detail.xml contains precinct-level President, U.S. House, and turnout rows for that county.Open source
equipment_context

Verified Voting Verifier IA 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