Data / Gini index / San Mateo County

Gini index in San Mateo County

Gini index in San Mateo County was 49.7 index in 2024, according to the U.S. Census Bureau. That is up 0.1 from 2023. That is the 6th highest of 58 counties in 2024.

Compared with California and United States

Rankings

• EU countries by gini index 27 places
• US states by gini index 51 places
• Counties in California by gini index 58 places

Definition

Income inequality on a 0 to 100 scale, where 0 is perfect equality.

Eurostat, equivalised disposable income after social transfers (EU-SILC), for the EU and its countries. For other countries use gini_index_world_bank, which is measured on a different basis. For the United States, ACS five-year estimate B19083 measures inequality in household money income before taxes. Census publishes a coefficient from 0 to 1; Invokely multiplies it by 100. The displayed year is the final year of the five-year period. Negative household incomes are treated as zero. This differs from the EU-SILC measure based on equivalised disposable income and should not be treated as directly comparable.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B19083: Gini index of household income inequality (coefficient multiplied by 100). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b19083.dat. Retrieved 2026-10-10.

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More statistics for San Mateo County

• Asian population share
• Bachelor's degree or higher, population 25 and over
• Live births, July to June
• Black or African American population share
• Housing units authorized by building permits
• Crude birth rate, July to June
• Crude death rate, July to June
• Deaths, July to June
• Foreign-born population share
• Real GDP growth
• GDP per capita, US dollars
• Gross domestic product (GDP), US dollars
• Hispanic or Latino population share
• Homeownership rate (US, housing units)
• County house price annual change, sales and refinances
• County house price index, 1990 = 100
• Mean travel time to work
• Median age
• Median gross rent (monthly)
• Median home value
• Median household income
• Population
• Population aged 65 and over
• Population density
• Poverty rate (US official measure)
• Unemployment rate
• White (non-Hispanic) population share

All statistics for San Mateo County