Mark Osmack
Democratic · MO
Mark Osmack is a Democratic candidate for the St. Louis County Council in District 3. He is a U.S. Army veteran who has previously run for federal office.
Where Mark Osmack stands, based on their records
Supports
Environment and Public Health (3 records), Social Programs and Welfare (1 record), Public Infrastructure (1 record)
Track record
Track record — Environment and Public Health
Environment and Public Health · 3 support
Spoke in favor of South Dakota Plumbing Commission rule changes adopting the 2024 Uniform Plumbing Code.
October 7, 2025Supports Environment and Public Health
Source: mylrc.sdlegislature.gov · researched July 23, 2026
Signed a coalition letter supporting Missouri HB 995 to require filtration and maintenance plans for lead-contaminated drinking water in schools.
April 14, 2025Supports Environment and Public Health
Source: wqa.org · researched July 23, 2026
Signed a water-industry coalition letter supporting Wisconsin legislation intended to reduce lead exposure through certified drinking-water treatment systems.
April 15, 2024Supports Environment and Public Health
Source: wqa.org · researched July 23, 2026
Track record — Social Programs and Welfare
Social Programs and Welfare · 1 support
Testified in favor of Missouri SB 1539, which would provide paid medical orders for National Guard members who become living organ donors.
March 3, 2026Supports Social Programs and Welfare
Source: senate.mo.gov · researched July 23, 2026
Track record — Public Infrastructure
Public Infrastructure · 1 support
Represented IAPMO at the Iowa Capitol in advocacy for plumbing codes, safe water, conservation, and responses to lead and PFAS contamination.
March 27, 2025Supports Public Infrastructure
Source: iapmo.org · researched July 23, 2026
Track record — General
General · 1 record
Served as an Army first lieutenant leading a combat patrol in Afghanistan.
January 15, 2011
Source: time.com · researched July 23, 2026
Past race Mark Osmack ran in:
- County Council - District 3 · August 4, 2026 · St. Louis County, Missouri
Profile last researched July 17, 2026.