10 Richest Counties In California

1. Marin County Stats – state_name: California county_name: Marin cousub_name: Northwest Marin GEOID: 05000US06041 Stats

258,826 population 313 people per square miles
520.4 square miles land 307.7 square miles water
Census data: ACS 2019 1 year

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Educational attainment

92.53%
High school graduate or higher
– about 10 percent higher than the figure in California State (84.03%)– less than 10 percent higher than the figure in United States (88.61%)
59.68%
Bachelor’s degree or higher
– about two thirds higher than the figure in California State (35%)– about 80 percent higher than the figure in United States (33.13%)
Population by minimum level of education
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2. San Francisco County Stats – state_name: California county_name: San Francisco cousub_name: Owen place_name: San Francisco GEOID: 05000US06075 Stats

881,549 population 3,802 people per square miles
46.9 square miles land 185.0 square miles water
Census data: ACS 2019 1 year

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Educational attainment

88.37%
High school graduate or higher
– less than 10 percent higher than the figure in California State (84.03%)– about the same as the rate in United States (88.61%)
59.2%
Bachelor’s degree or higher
– about two thirds higher than the figure in California State (35%)– about 80 percent higher than the figure in United States (33.13%)
Population by minimum level of education
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3. San Mateo County Stats – state_name: California county_name: San Mateo cousub_name: Fort Rucker GEOID: 05000US06081 Stats

766,573 population 1,035 people per square miles
448.6 square miles land 292.3 square miles water
Census data: ACS 2019 1 year

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Educational attainment

90.56%
High school graduate or higher
– about 10 percent higher than the figure in California State (84.03%)– less than 5 percent higher than the figure in United States (88.61%)
52.33%
Bachelor’s degree or higher
– about half higher than the figure in California State (35%)– about three fifths higher than the figure in United States (33.13%)
Population by minimum level of education
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4. Santa Clara County Stats – state_name: California county_name: Santa Clara cousub_name: Diablo Range GEOID: 05000US06085 Stats

1,927,852 population 1,478 people per square miles
1,291.1 square miles land 13.0 square miles water
Census data: ACS 2019 1 year

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Educational attainment

88.98%
High school graduate or higher
– less than 10 percent higher than the figure in California State (84.03%)– less than 5 percent higher than the figure in United States (88.61%)
53.7%
Bachelor’s degree or higher
– about half higher than the figure in California State (35%)– about three fifths higher than the figure in United States (33.13%)
Population by minimum level of education
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5. Contra Costa County Stats – state_name: California county_name: Contra Costa cousub_name: Central Contra Costa GEOID: 05000US06013 Stats

1,153,526 population 1,435 people per square miles
717.1 square miles land 87.0 square miles water
Census data: ACS 2019 1 year

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Educational attainment

89.07%
High school graduate or higher
– less than 10 percent higher than the figure in California State (84.03%)– less than 5 percent higher than the figure in United States (88.61%)
42.98%
Bachelor’s degree or higher
– about one quarter higher than the figure in California State (35%)– about one third higher than the figure in United States (33.13%)
Population by minimum level of education
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6. Alameda County Stats – state_name: California county_name: Alameda cousub_name: Livermore-Pleasanton place_name: Pleasanton GEOID: 05000US06001 Stats

1,671,329 population 2,036 people per square miles
737.3 square miles land 83.7 square miles water
Census data: ACS 2019 1 year

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Educational attainment

89.62%
High school graduate or higher
– less than 10 percent higher than the figure in California State (84.03%)– less than 5 percent higher than the figure in United States (88.61%)
50.61%
Bachelor’s degree or higher
– about half higher than the figure in California State (35%)– about half higher than the figure in United States (33.13%)
Population by minimum level of education
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7. Napa County Stats – state_name: California county_name: Napa cousub_name: Angwin GEOID: 05000US06055 Stats

137,744 population 175 people per square miles
748.3 square miles land 40.3 square miles water
Census data: ACS 2019 1 year

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Educational attainment

85.48%
High school graduate or higher
– less than 5 percent higher than the figure in California State (84.03%)– a little less the rate in United States (88.61%)
36.16%
Bachelor’s degree or higher
– less than 5 percent higher than the figure in California State (35%)– about 10 percent higher than the figure in United States (33.13%)
Population by minimum level of education
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8. Placer County Stats – state_name: California county_name: Placer cousub_name: Duncan GEOID: 05000US06061 Stats

398,329 population 265 people per square miles
1,407.1 square miles land 95.2 square miles water
Census data: ACS 2019 1 year

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Educational attainment

94.12%
High school graduate or higher
– less than a fifth higher than the figure in California State (84.03%)– less than 10 percent higher than the figure in United States (88.61%)
41.92%
Bachelor’s degree or higher
– about one fifth higher than the figure in California State (35%)– about one quarter higher than the figure in United States (33.13%)
Population by minimum level of education
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9. Santa Cruz County Stats – state_name: California county_name: Santa Cruz cousub_name: Santa Cruz GEOID: 05000US06087 Stats

273,213 population 450 people per square miles
445.1 square miles land 162.1 square miles water
Census data: ACS 2019 1 year

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Educational attainment

87.48%
High school graduate or higher
– less than 10 percent higher than the figure in California State (84.03%)– about the same as the rate in United States (88.61%)
43.83%
Bachelor’s degree or higher
– about one quarter higher than the figure in California State (35%)– about one third higher than the figure in United States (33.13%)
Population by minimum level of education
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10. El Dorado County Stats – state_name: California county_name: El Dorado cousub_name: Liberty GEOID: 05000US06017 Stats

192,843 population 108 people per square miles
1,707.8 square miles land 78.5 square miles water
Census data: ACS 2019 1 year

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Educational attainment

92.94%
High school graduate or higher
– about 10 percent higher than the figure in California State (84.03%)– less than 10 percent higher than the figure in United States (88.61%)
35.33%
Bachelor’s degree or higher
– less than 5 percent higher than the figure in California State (35%)– less than 10 percent higher than the figure in United States (33.13%)
Population by minimum level of education
Show data table