EAVS × EAVS
Does polling-place density move with turnout?
Across eligible county groups, the simple correlation is -0.09. That number describes co-movement only; state law, vote centers, early voting, mail voting and geography sit outside it.
county groups meet the 10,000-registration threshold and 90% polling-place coverage rule.
Four combinations hidden by one correlation
More locations, higher turnout
495counties
Fewer locations, higher turnout
560counties
More locations, lower turnout
560counties
Fewer locations, lower turnout
495counties
“More” and “fewer” use the eligible-set median of 7.95 polling places per 10,000 voters. “Higher” and “lower” use the 68.7% turnout median. The unit is a county aggregate, not an individual voter.