San Dimas, California Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
San Dimas, 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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B
Income Around average
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B
Education Around average
Source: Map AI Methodology
Population
| Metric | San Dimas | California Avg | U.S. Average |
|---|---|---|---|
| Population | 34,372 | 39,245,658 | 337,468,954 |
| Population density (per sq mi) | 2228.5 | 239.4 | 86.4 |
| Population growth (%/yr) | -0.16% | 0.19% | 0.59% |
| Median age | 40.2 | 35.5 | 37.3 |
| Households | 12,106 | 13,531,619 | 130,235,071 |
Population in San Dimas declined by 1.7% from 2009 to 2024, reaching 34,372 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in San Dimas is Gen X, aged 45–60, at 23.7% of residents. That is 3.8 points above California as a whole.
- Gen Z 13–28 6,403 18.6% -3.1 pts
- Millennials 29–44 7,059 20.5% -3.1 pts
- Gen X 45–60 8,139 23.7% +3.8 pts
- Boomers 61–79 6,267 18.2% +3.0 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 52.4% of the people living in San Dimas and men 47.6%.
- Women 52.4% California 49.9%
- Men 47.6% California 50.1%
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Economy
San Dimas has a the economy index of B, which means it is quite prosperous.
| Metric | San Dimas | California Avg | U.S. Average |
|---|---|---|---|
| Median household income | $109,442 | $99,161 | $80,455 |
| Income growth (%/yr) | 3.87% | 5.57% | 4.80% |
| Unemployment rate | 4.6% | 6.6% | 5.2% |
The median household income in San Dimas is about 10% higher than in California.
Housing
| Metric | San Dimas | California Avg | U.S. Average |
|---|---|---|---|
| Median home price | $188,140 | $650,794 | $248,835 |
| Median rent | $2,303 | $2,036 | $1,407 |
| Homeownership rate | 72.2% | 55.9% | 65.2% |
The median home price in San Dimas is about 6.8 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,303 per month for that long.
Commute Time & Mobility
Commuters in San Dimas spend about 51 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 213 hours, about 8.9 full days, spent commuting.
| Metric | San Dimas | California Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 25.6 | 23.5 | 22.4 |
| Round-trip commute (min) | 51.2 | 47.0 | 44.8 |
| Yearly time spent (hours) | 213 | 196 | 187 |
| Estimated yearly cost | $6,612 | $6,065 | $5,790 |
| Work from home | 16.6% | 17.2% | 15.0% |
| Highway traffic (vehicles/day) | 39,943 | 16,509 | 8,813 |
| Local road traffic (vehicles/day) | 3,036 | 2,449 | 1,355 |
The average commute time in San Dimas is 26 minutes, longer than the 23 minutes 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
San Dimas has a education index of B, which means it is quite educated.
| Metric | San Dimas | California Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 35.7% | 33.0% | 31.6% |
| Average household size | 2.80 | 2.84 | 2.53 |
Health
San Dimas has a health index of A, which means it is very healthy.
| Metric | San Dimas | California Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 82.0 | 79.6 | 78.3 |
| Self-rated poor health | 12.0% | 16.4% | 16.3% |
| Smokers | 8.8% | 13.9% | 19.0% |
San Dimas, CA Compared With Nearby Cities
San Dimas, CA is the 4th largest of the 5 cities compared here, 34,372 residents against a local median of 51,740. Where San Dimas, CA breaks from the cities next to it is median home price, sitting 70% below the local median of $620,641 at $188,140.
The cities themselves spread $955,759 on median home price, so San Dimas, CA sits at one end of an already wide local range rather than apart from it. San Dimas, CA has the 5th highest median home price of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| San Dimas, CA | 34,372 | $109,442 #2/5 | $188,140 #5/5 | 25.6 min #1/5 |
| La Verne, CA | 29,835 | $104,718 | $1,485,412 | 27.3 min |
| Glendora, CA | 51,981 | $113,459 | $622,562 | 30.7 min |
| Pomona, CA | 148,496 | $80,439 | $529,653 | 28.2 min |
| Covina, CA | 51,499 | $98,863 | $618,720 | 27.2 min |
Frequently Asked Questions
Common questions about San Dimas, California.
How many people live in San Dimas, California?
About 34,372 people live in San Dimas, California, in 12,106 households of 2.8 people on average. The median age is 40.2, so residents are older than the U.S. median of 37.3 by about 3 years.
How densely populated is San Dimas, California?
Averaged over its land area, San Dimas, California has 2,229 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 San Dimas, California?
The median home costs 1.7 times the median household income ($188,140 against $109,442), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $2,303 a month takes about 25% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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