A rural Corn Belt county where Republican margins have widened each cycle since 2008
Warren County's population has declined steadily as agriculture consolidates, leaving a smaller, older, and more reliably Republican electorate. In 2024 the GOP presidential margin reached 25 points, up sharply from the single-digit gaps of two decades ago.
Contextual statewide polling for Illinois. County pages stay rooted in county returns, but live statewide polling helps frame the current cycle.