County twins · 69.5% profile similarity
Contra Costa County, CAvs.Nassau County, NY
Contra Costa County reports the higher provisional acceptance: 91.3% versus 70.7% in Nassau County.
Population1,165,0121,389,591
Median household income$127,229$146,202
Bachelor's degree or higher45.2%49.7%
Poverty8.4%5.4%
Foreign-born26.6%23.3%
No vehicle5.2%6.8%
Administrative contrast
Where the election systems separate
Registered-voter turnout68.3%↔65.8%
Mail-ballot rejection rate0.90%↔2.24%
Polling places per 10,000 voters2.8%↔5.2%
Provisional-ballot acceptance rate91.3%↔70.7%
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
Contra Costa County
- Transmitted
- 738,013
- Returned
- 468,867
- Rejected
- 4,226
Mail-ballot path
Nassau County
- Transmitted
- 106,268
- Returned
- 88,312
- Rejected
- 1,977