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San Joaquin and Contra Costa Counties

9th Congressional District (2026)

760,064 Population
412,406 Voters
These maps go into effect starting with the 2026 election cycle, following the passage of Proposition 50. View 2022 9th Congressional District.
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San Joaquin and Contra Costa Counties

9th Congressional District (2026)

760,064 Population
412,406 Voters
These maps go into effect starting with the 2026 election cycle, following the passage of Proposition 50. View 2022 9th Congressional District.

Unlock full voter and turnout data for 9th Congressional District Voter counts, turnout history, and demographics—ready for your next briefing in minutes, not hours.

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Demographics Education & Work Income & Economic Housing
Median Household Income
$111,951
High
High Income ($100k+)
51.7%
Average
Low Income (<$35k)
4.3%
Very Low
Income Inequality
42.0%
Average

Household Income Distribution

<$ 10,000 ~X%
10,000 to $ 14,999 ~X%
15,000 to $ 19,999 ~X%
20,000 to $ 24,999 ~X%
25,000 to $ 29,999 ~X%
30,000 to $ 34,999 ~X%
35,000 to $ 39,999 ~X%
40,000 to $ 44,999 ~X%
45,000 to $ 49,999 ~X%
50,000 to $ 59,999 ~X%
60,000 to $ 74,999 ~X%
75,000 to $ 99,999 ~XX%
100,000 to $ 124,999 ~XX%
125,000 to $ 149,999 ~X%
150,000 to $ 199,999 ~XX%
200,000 + ~XX%
Lower Income (< $35k)
~X%
Middle Income ($35k-$100k)
~XX%
Upper Middle ($100k-$200k)
~XX%
High Income ($200k+)
~XX%

Public Assistance & SNAP Benefits

Public Assistance Only
~X%
SNAP Benefits Only
~X%
Total Households Receiving Assistance ~XX%

Household Earners

Distribution of households by number of earners
No Earners ~XX%
One Earner ~XX%
Two Earners ~XX%
Three or More Earners ~XX%

Health Insurance Coverage

Under 19 Employer (~XX%) ~XX%
19 to 34 Employer (~XX%) ~XX% ~XX% uninsured
35 to 64 Employer (~XX%) ~XX%
65 and Over Medicare (~XX%) ~XX%
Overall Insured
~XX%
Most Common
Employer
Medicare
~X%
Medicaid
~XX%
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