County twins · 77.1% profile similarity
Sonoma County, CAvs.Kane County, IL
Kane County reports the higher polling-place density: 3.4% versus 1.2% in Sonoma County.
Population485,040517,255
Median household income$104,674$103,163
Bachelor's degree or higher38.5%38.1%
Poverty8.9%7.9%
Foreign-born16.8%17.2%
No vehicle4.8%4.7%
Administrative contrast
Where the election systems separate
Registered-voter turnout72.1%↔72.7%
Mail-ballot rejection rate0.70%↔0.66%
Polling places per 10,000 voters1.2%↔3.4%
Provisional-ballot acceptance rate99.4%↔88.6%
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
Sonoma County
- Transmitted
- 317,533
- Returned
- 235,848
- Rejected
- 1,659
Mail-ballot path
Kane County
- Transmitted
- 51,344
- Returned
- 45,382
- Rejected
- 299