Iowa Campaign Contributions Since 2003

Iowa campaign finance data contains contributions and in-kind donations to candidate committees, PACs, and other political entities. The dataset covers reports filed electronically and some paper reports, with records available from 2003 onward. Data is submitted by the reporting committees themselves.

Use Cases

• Analyze contribution patterns to state-wide candidate committees versus local ballot issue committees over time
• Track donations from Federal/Out-of-State Political Committees to Iowa state political committees
• Examine in-kind donation reporting across County Central Committees and Party Committees

Strengths

• Data coverage begins in 2003, providing over a decade of historical records
• Includes contributions to a wide range of political entities such as state PACs, county central committees, and state parties
• Sourced directly from reports submitted by the responsible committees

Limitations

• Data quality is dependent on the accuracy of electronic reports filed by committees, which may contain errors
• Some reports are filed on paper and may not be fully captured, leading to potential gaps
• The dataset is split into multiple assets due to Excel row limits, complicating a full download

Provenance

Source

State of Iowa

Collection Method

Reports submitted electronically and on paper by candidate committees, political committees, and other organizations

Time Range

From 2003 onward

Freshness

Last updated March 2026.

Geography

Iowa, United States