One of Illinois's most Republican counties by presidential margin
Adams County, anchored by Quincy on the Mississippi River, has shifted steadily rightward over two decades — its 2024 presidential margin of R+47.4 places it among the state's most lopsided counties despite a mid-sized urban core.
Contextual statewide polling for Illinois. County pages stay rooted in county returns, but live statewide polling helps frame the current cycle.