USA Votes Data Lab Newsroom

County twins · 76.8% profile similarity

Johnson County, KSvs.Chester County, PA

Chester County reports the higher polling-place density: 6.6% versus 4.1% in Johnson County.

Population620,631547,840
Median household income$109,208$127,208
Bachelor's degree or higher57.6%57.1%
Poverty5.4%6.0%
Foreign-born9.2%10.1%
No vehicle3.5%4.3%

Administrative contrast

Where the election systems separate

Registered-voter turnout72.8%82.7%
Mail-ballot rejection rate0.59%0.83%
Polling places per 10,000 voters4.1%6.6%
Provisional-ballot acceptance rate68.9%73.3%

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

Johnson County

Transmitted
52,919
Returned
48,129
Rejected
282

Mail-ballot path

Chester County

Transmitted
119,506
Returned
109,056
Rejected
902