Martinez, California Demographics & Population 2026
During the 2020–2024 ACS period, Martinez, California had a total population of 36,903, the 231st largest city in California, with a median household income of $127,355, which is 28% higher than the state average. The poverty rate is 6.3%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Martinez Quick Facts
How Martinez Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 36,926 | 36,903 | -0.1% |
| Median household income | $125,436 | $127,355 | +1.5% |
| Median home value | $824,700 | $859,800 | +4.3% |
How Martinez Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 70 | National average: 61
Education
Educational Attainment (Adults 25+)
Martinez Rankings in California
Explore California Rankings
Other Cities in Contra Costa County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Concord | 124,035 | $108,709 | 8.2% | $797,600 |
| Antioch | 116,477 | $97,465 | 11.4% | $629,700 |
| Richmond | 115,505 | $95,391 | 13.6% | $668,200 |
| San Ramon | 85,993 | $196,161 | 4.4% | $1,509,500 |
| Pittsburg | 76,257 | $99,861 | 11.2% | $597,900 |
| Walnut Creek | 70,088 | $130,432 | 6.4% | $1,057,300 |
| Brentwood | 65,208 | $142,494 | 8.3% | $836,600 |
| Oakley | 45,183 | $137,677 | 6.1% | $660,200 |
| Danville | 43,401 | $232,216 | 3.8% | $1,681,700 |
| Pleasant Hill | 34,235 | $145,029 | 7.3% | $1,077,100 |
Cities Similar to Martinez
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Claremont | 36,595 | $125,647 | $897,000 | 59.9% | 6.9% |
| Lathrop | 35,052 | $126,421 | $643,600 | 28.0% | 7.1% |
| San Juan Capistrano | 35,095 | $129,457 | $993,800 | 43.4% | 8.3% |
| Moorpark | 35,854 | $148,480 | $894,300 | 44.6% | 4.9% |
| Wildomar | 37,277 | $103,506 | $552,400 | 21.1% | 10.6% |
Population Overview
Martinez is a mid-sized community located in California, within Contra Costa County. The total population is 36,903. It ranks as the 231st most populous out of 1,570 Census-designated places in California.
Age Demographics
The median age in Martinez is 42.6 years. This is 12% higher than the state median of 37.9 years.
Economy, Income & Housing
The median household income in Martinez is $127,355. This is 28% higher than the state median of $99,122. It is also 58% higher than the national median of $80,734. The poverty rate stands at 6.3%. This is 47% lower than the state poverty rate of 12.0%. The unemployment rate is 5.8%. This is 12% lower than the state rate of 6.6%. The median home value is $859,800. Housing costs are 17% higher than the state median of $734,700. The home-value-to-income ratio of 6.8x suggests that housing affordability is a significant concern for many residents. 70.8% of occupied housing units are owner-occupied. This homeownership rate is 27% higher than the state average of 55.9%.
Race & Ethnicity
The largest racial or ethnic group in Martinez is White (non-Hispanic), making up 58.9% of the population. Hispanic or Latino residents account for 20.2%. The White (non-Hispanic) population is significantly higher than the state average (58.9% vs 33.8%). The Black or African American population (2.2%) is well below the state average of 5.2%.
Education
46.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 26% higher than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.6%.
Data Sources & Methodology
All demographic data for Martinez, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,570 Census-designated places in California. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Martinez, California?
Martinez, California has a population of 36,903 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Martinez, CA?
The median household income in Martinez is $127,355, which is 58% higher than the national median of $80,734.
What is the poverty rate in Martinez, CA?
The poverty rate in Martinez is 6.3%. This means approximately 2,282 residents live below the federal poverty line.
What is the racial makeup of Martinez, California?
Martinez's population is 58.9% White, 2.2% Black, 20.2% Hispanic/Latino, and 10.0% Asian.
What is the median home value in Martinez, CA?
The median home value in Martinez is $859,800. The home-value-to-income ratio is 6.8x.
How educated is Martinez, California?
46.7% of adults (25+) in Martinez hold a bachelor's degree or higher, and 14.0% hold a graduate or professional degree.