USA Votes Data Lab Newsroom

County twins · 85.1% profile similarity

Mercer County, ILvs.Buffalo County, WI

Buffalo County reports the higher polling-place density: 29.6% versus 13.1% in Mercer County.

Population15,49513,393
Median household income$74,182$70,479
Bachelor's degree or higher20.9%22.1%
Poverty8.9%8.4%
Foreign-born1.1%1.7%
No vehicle2.9%3.3%

Administrative contrast

Where the election systems separate

Registered-voter turnout64.7%88.4%
Mail-ballot rejection rate1.49%0.28%
Polling places per 10,000 voters13.1%29.6%
Provisional-ballot acceptance rateNot reportedNot reported

Measures come from reporting 2024 EAVS jurisdictions. Missing fields remain missing. A difference describes administration and coverage; it does not establish cause or wrongdoing.

Mail-ballot path

Mercer County

Transmitted
1,490
Returned
1,340
Rejected
20

Mail-ballot path

Buffalo County

Transmitted
736
Returned
703
Rejected
2