Who serves in the Iowa Senate?

Current members. Traceable sources.

This is a dated current-member snapshot. Membership follows the active term identified by the official chamber directory. A candidate list or vote lead does not establish a serving member. This view does not refresh automatically.

Current official Iowa serving directories checked November 5, 2026 (America/Chicago). The combined and separate chamber lists agree on all 99 serving House members and 49 serving senators. Six records explicitly placed in Former Members are excluded. The source labels the 91st General Assembly January 13, 2025–January 10, 2027; these assembly dates are retained as session context, not substituted for constitutional term provisions.

House District 38 is vacant following Jon Dunwell’s October 5, 2026 immediate resignation, confirmed by the Governor and the official former-member record. Senate District 11 is vacant after Julian Garrett’s June 8, 2026 death, confirmed by his official history and service-ending record. Iowa Code section 69.2 makes resignation or death a vacancy event. The current directories identify no serving replacement for either district; neither is assigned a party or successor.

Current directories include documented serving replacements such as Catelin Drey in Senate District 1 and Renee Hardman in Senate District 16; former members for those districts are not kept as serving. The 2026 Election Laws publication reproduces Constitution Article III section 3, beginning regular House terms January 1 following election, and section 5, providing four-year Senate terms. A November election lead or winner is not treated as proof of current service.

State legislative geography uses the current enacted November 4, 2021 plan effective for elections beginning in 2022, distributed by the Iowa Legislative Services Agency and linked from the official current maps page. State House and Senate districts are separate from congressional districts.

The thematic map uses Census 2024 1:500,000 cartographic boundaries only after all 150 district IDs and every interior display point match the corresponding official enacted legal-plan polygon. All source cartographic rings and components are retained. Legal GIS queries request district identifiers/names only; political and demographic attributes are not used.

These are representation records. No statewide ACS value, district demographic estimate, ZIP finding or ZCTA claim is inferred.

Affiliations come from current official serving-directory rows, not GIS or election candidates. House District 38 and Senate District 11 remain vacant and unassigned. Former members’ historical affiliations are not carried into vacancies. This snapshot does not refresh automatically.

Legal authority: Iowa state House and Senate plans enacted November 4, 2021, effective from the 2022 elections, distributed by the official Legislative Services Agency GIS. Display: Census 2024 1:500,000 cartographic state legislative districts. All 150 IDs and interior labels match their legal polygons; all source cartographic rings are retained. Small-scale display, not address-level district determination.

Official roster sources

• Iowa General Assembly current legislator list — serving and former sections ↗
• Current House directory ↗
• Current Senate directory ↗
• Governor official October 5, 2026 announcement — Jon Dunwell immediate resignation ↗
• Official Julian Garrett history — death June 8, 2026 ↗
• 2026 Iowa Code chapter 69 — vacancy on resignation or death ↗
• 2026 Election Laws of Iowa — Constitution Article III terms and qualifications ↗

District boundary sources

• Iowa General Assembly current district maps — enacted November 4, 2021 plan ↗
• Official Legislative Services Agency district GIS metadata ↗
• Official enacted 2021 House legal-plan polygons, district fields only ↗
• Official enacted 2021 Senate legal-plan polygons, district fields only ↗
• Census 2024 House cartographic districts, 1:500,000 ↗
• Census 2024 Senate cartographic districts, 1:500,000 ↗

These maps describe representation. The 2024 ACS State Demographics authority remains statewide; no district, ZIP, or ZCTA demographic findings are inferred.

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