County Board Member - District 12
March 17, 2026 · St. Clair County, Illinois · County · primary
How do we calculate vote impact?
Vote impact = representation (how much weight one vote carries here, the smaller the district's population, the higher the representation) + decisiveness (how likely this race is to be close, based on past results and number of candidates).
Representation: Average · 41 out of 100
This district is mid-sized for its type, so each vote carries average weight. About 253,694 people live here.
score = 100 × ln(largest population ÷ this district's) ÷ ln(largest ÷ smallest), rounded to 2 decimals = 100 × ln(5,182,090 ÷ 253,694) ÷ ln(5,182,090 ÷ 3,605) = 41.49, comparing counties in IL (grades: 66+ high, 33+ average, otherwise low)
Decisiveness: Unknown
No past results for this contest yet.
Average representation + unknown decisiveness → Average vote impact.
Some data is missing, so this rating is based on partial information and capped at "High".
County Supervisor is responsible for:
- Serving on the county's governing board
- Passing the county budget and local rules
- Overseeing county services such as roads, health programs, and elections
- Deciding land use in areas outside city limits
Affected Areas: Environment and Public Health, Government Efficiency, Healthcare Affordability, Government Spending Reduction, Public Safety and Crime Control, Housing Affordability, Social Programs and Welfare, Public Infrastructure
Candidates
Candidate information for this race isn't available yet.
Election sources
Source: stclaircountyil.gov