Iowa Voter Registration Totals by Month and State Senate District

Iowa voter registration data is provided monthly by state senate district, starting from June 2021. It includes counts of voters registered as Democrats, Republicans, other parties, or with no party affiliation, and classifies registrations as active or inactive. The State of Iowa maintains this dataset, which was last updated on March 7, 2026.

Use Cases

• Track monthly changes in party affiliation based on the voter registration totals.
• Analyze the distribution of active versus inactive voter registrations across districts.
• Model political party strength over time using the monthly time-series data.
• Compare voter registration patterns between different state senate districts.

Strengths

• Data is provided monthly, enabling time-series analysis from June 2021 onward.
• Includes breakdowns by four registration types: Democrat, Republican, other party, and no party.
• Distinguishes between active and inactive voter statuses as defined by state law.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

State of Iowa

Collection Method

Likely compiled from official county auditor records as per state statute §48A.37.

Time Range

From June 2021 onward.

Freshness

Last updated 2026-03-07 21:42:06.575787; freshness should be verified.

Geography

State of Iowa, aggregated by state senate district.