Missouri › St Louis County › County Assessor
4 candidates are tracked for County Assessor on the November 3, 2026 ballot: Doug Clemens, Tommie Pierson Jr., David Messner and Austin Brown. Candidate information follows official St Louis County election filings; verify with the official election office linked below.
Open seat: Jake Zimmerman is vacating the office to run for county executive. Two Democrats meet August 4 (a third, Joe Camerer, withdrew and does not print, per the certified report's annotation); David Messner is unopposed on the Republican side and Austin Brown is the Green nominee.
A state representative from St. Ann, term-limited out of the Missouri House, per STLPR. He wants an ombudsman post inside the assessor's office to give residents a direct contact and to work down a backlog of more than 21,000 pending property tax appeals, per STLPR.
2026 priorities
- An ombudsman role for direct resident access, per STLPR
- Working down the property tax appeal backlog, per STLPR
- Detail-oriented accountability from his committee work, per STLPR
Source: candidate campaign site, roster verified 2026-08-29.
Campaign site →
A former state representative from the Spanish Lake area with an applied math degree from Washington University and an MBA from UMSL, who also teaches and preaches at a St. Charles church, per STLPR. He campaigns on making the office's math understandable and challengeable, per STLPR.
2026 priorities
- Public understanding of how assessments are calculated, per STLPR
- Transparency and accountability in the office, per STLPR
- Applying his math background to mass appraisal, per STLPR
Source: candidate campaign site, roster verified 2026-08-29.
Campaign site →
David Messner is on the county's certified candidate list for the County Assessor, per the county election authority.
Austin Brown is on the county's certified candidate list for the County Assessor, per the county election authority.
