Martinez, California Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Martinez, CA Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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A
Health Above average
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A
Income Above average
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B
Education Around average
Source: Map AI Methodology
Population
| Metric | Martinez | California Avg | U.S. Average |
|---|---|---|---|
| Population | 31,080 | 39,245,658 | 337,468,954 |
| Population density (per sq mi) | 2277.0 | 239.4 | 86.4 |
| Population growth (%/yr) | -0.22% | 0.19% | 0.59% |
| Median age | 43.6 | 35.5 | 37.3 |
| Households | 12,231 | 13,531,619 | 130,235,071 |
Population in Martinez grew by 8.5% from 2009 to 2024, reaching 31,080 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Martinez is Gen X, aged 45–60, at 23.2% of residents. That is 3.4 points above California as a whole.
- Gen Z 13–28 5,263 16.9% -4.8 pts
- Millennials 29–44 7,221 23.2% -0.4 pts
- Gen X 45–60 7,224 23.2% +3.4 pts
- Boomers 61–79 5,527 17.8% +2.5 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below California, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.7% of the people living in Martinez and men 49.3%.
- Women 50.7% California 49.9%
- Men 49.3% California 50.1%
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100% of everyone living in Martinez
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Economy
Martinez has a the economy index of A, which means it is very prosperous.
| Metric | Martinez | California Avg | U.S. Average |
|---|---|---|---|
| Median household income | $134,592 | $99,161 | $80,455 |
| Income growth (%/yr) | 4.83% | 5.57% | 4.80% |
| Unemployment rate | 5.4% | 6.6% | 5.2% |
The median household income in Martinez is about 36% higher than in California.
Housing
| Metric | Martinez | California Avg | U.S. Average |
|---|---|---|---|
| Median home price | $841,648 | $650,794 | $248,835 |
| Median rent | $2,335 | $2,036 | $1,407 |
| Homeownership rate | 72.3% | 55.9% | 65.2% |
The median home price in Martinez is about 30.0 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,335 per month for that long.
Commute Time & Mobility
Commuters in Martinez spend about 45 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 189 hours, about 7.9 full days, spent commuting.
| Metric | Martinez | California Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 22.7 | 23.5 | 22.4 |
| Round-trip commute (min) | 45.3 | 47.0 | 44.8 |
| Yearly time spent (hours) | 189 | 196 | 187 |
| Estimated yearly cost | $5,853 | $6,065 | $5,790 |
| Work from home | 22.1% | 17.2% | 15.0% |
| Highway traffic (vehicles/day) | 25,169 | 16,509 | 8,813 |
| Local road traffic (vehicles/day) | 2,693 | 2,449 | 1,355 |
The average commute time in Martinez is about the same as in California.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Martinez has a education index of B, which means it is quite educated.
| Metric | Martinez | California Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 42.6% | 33.0% | 31.6% |
| Average household size | 2.48 | 2.84 | 2.53 |
Health
Martinez has a health index of A, which means it is very healthy.
| Metric | Martinez | California Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 80.4 | 79.6 | 78.3 |
| Self-rated poor health | 12.1% | 16.4% | 16.3% |
| Smokers | 11.8% | 13.9% | 19.0% |
Martinez, CA Compared With Nearby Cities
How Martinez, CA compares with the 1 cities closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Martinez, CA | 31,080 | $134,592 #2/2 | $841,648 #1/2 | 22.7 min #1/2 |
| Pleasant Hill, CA | 32,268 | $135,208 | $803,303 | 23.1 min |
Frequently Asked Questions
Common questions about Martinez, California.
How many people live in Martinez, California?
About 31,080 people live in Martinez, California, in 12,231 households of 2.5 people on average. The median age is 43.6, so residents are older than the U.S. median of 37.3 by about 6 years.
How densely populated is Martinez, California?
Averaged over its land area, Martinez, California has 2,277 people per square mile, a density typical of urban and suburban areas. That is about 26 times the U.S. average of 86.
Can a typical household afford a home in Martinez, California?
The median home costs 6.3 times the median household income ($841,648 against $134,592), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $2,335 a month takes about 21% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How educated are people in Martinez, California?
42.6% of adults in Martinez, California hold a bachelor's degree or higher (about 1 in 2), well above the U.S. share of 31.6%.
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