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California District 21

Congressional District in CA • 2 Counties

California's 21st congressional district is represented by Jim Costa, a Democratic U.S. representative. Costa won the 2024 general election with 52.6% of the vote. The district has 758,000 residents, a median household income of $64,764 and a median age of 31.9, according to the Census Bureau's 2024 American Community Survey 5-year estimates.

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Jim Costa

Representative for California District 21
Democratic21 years in office
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2026 election

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CA’s congressional map changed for 2026, so this district number may cover different territory on the November 2026 ballot. Confirm your 2026 district by home address.

District Boundaries

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Demographics

758,000

Total Population

$64,764

Median Household Income

31.9

Median Age

11.6%

College Educated

21.9%

Poverty Rate

Racial & Ethnic Composition

29.3% Whi
4.6% Bla
64.9% His
9.8% Asi

Age Distribution

Median age: 31.9 years | Source: Census ACS 5-Year

Household Income Distribution

Median household income: $64,764 | Source: Census ACS 5-Year

Racial & Ethnic Composition

2024 Election Results

Jim Costa Democratic52.6%
Michael Maher Republican47.4%

Jim Costa won by 5.1%

195,531 total votes cast

Source: MIT Election Data + Science Lab (MEDSL)

Employment by Occupation

Civilian employed population 16+ | Source: Census ACS 5-Year

Federal Spending

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Relevant Legislation

Quick Facts

Representative

Jim Costa

Major Counties

Fresno, Tulare

Major Cities

Fresno, Visalia, Sanger

Neighboring Districts

Sources and method

· ACS 2020–2024 5-year estimates

congress-legislators, MEDSL: CC0 1.0 (public domain dedication) · All other sources: Public domain (17 U.S.C. § 105) · Method: Data sources → · Campaign finance →

The spending narrative is written by AI from USAspending.gov data and is labeled where it appears. It is not a source itself. How we analyze data →

Dates shown where the source reports one. “Loaded” is when CIV.IQ last fetched the record.

Frequently Asked Questions

Who represents California District 21?
Jim Costa (Democrat) currently represents California District 21 in the U.S. House of Representatives.
What counties are in California District 21?
California District 21 includes 2 counties: Fresno, Tulare.
What are the major cities in California District 21?
The major cities in this district include Fresno, Visalia, Sanger.
What is the population of California District 21?
California District 21 has a population of approximately 758,000 residents.