San Mateo, CA Population Statistics: Density Map Data
Analyze population trends, housing costs, and the local economy by exploring Map AI.
Area Snapshot Statistics
Key statistics on population, economy, housing, and commuting compared to state and national averages. Explore interactive maps for deeper analysis.
Population
| Metric | San Mateo | California Avg | U.S. Average |
|---|---|---|---|
| Population | 100,243 | 38,909,900 | 334,821,731 |
| Population density (per sq mi) | 6324.8 | 237.3 | 85.8 |
| Population growth (%/yr) | 0.10% | 0.19% | 0.57% |
| Median age | 36.4 | 35.4 | 37.1 |
| Households | 39,396 | 13,415,389 | 128,459,983 |
Population in San Mateo grew by 12.1% from 2009 to 2023, reaching 102,602 in 2023.
Population Growth 2009–2023
Race & Ethnicity
Economy
San Mateo has a the economy index of A+, which means it is exceptionally prosperous.
| Metric | San Mateo | California Avg | U.S. Average |
|---|---|---|---|
| Median household income | $152,156 | $96,718 | $78,145 |
| Income growth (%/yr) | 6.78% | 6.01% | 5.07% |
| Unemployment rate | 4.3% | 6.4% | 5.2% |
The median household income in San Mateo is about 57% higher than in California.
Housing
| Metric | San Mateo | California Avg | U.S. Average |
|---|---|---|---|
| Median home price | $376,982 | $642,203 | $242,182 |
| Median rent | $3,073 | $1,955 | $1,342 |
| Homeownership rate | 51.0% | 55.8% | 65.1% |
The median home price in San Mateo is about 10.2 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $3,073 per month for that long.
Commute Time & Mobility
Commuters in San Mateo spend about 47 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 195 hours, about 8.1 full days, spent commuting.
| Metric | San Mateo | California Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 23.4 | 23.6 | 22.5 |
| Round-trip commute (min) | 46.8 | 47.2 | 44.9 |
| Yearly time spent (hours) | 195 | 197 | 187 |
| Estimated yearly cost | $6,044 | $6,099 | $5,803 |
| Work from home | 22.3% | 15.5% | 13.4% |
| Highway traffic (vehicles/day) | 35,627 | 16,509 | 8,813 |
| Local road traffic (vehicles/day) | 3,403 | 2,449 | 1,355 |
The average commute time in San Mateo is 23 minutes, shorter than the 24 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 Mateo has a education index of A+, which means it is exceptionally educated.
| Metric | San Mateo | California Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 55.2% | 33.0% | 31.6% |
| Average household size | 2.56 | 2.85 | 2.54 |
Health
San Mateo has a health index of A+, which means it is exceptionally healthy.
| Metric | San Mateo | California Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 83.0 | 79.6 | 78.3 |
| Self-rated poor health | 10.7% | 16.4% | 16.3% |
| Smokers | 9.0% | 13.9% | 19.0% |
Frequently Asked Questions
Common questions about San Mateo, California.
What is the population of San Mateo, California?
The population of San Mateo, California is 100,243, compared to the U.S. total of 334,821,731.
What is the population density of San Mateo, California?
The population density of San Mateo, California is 6324.8 people per square mile, compared to the U.S. average of 85.8 people per square mile.
What is the median household income in San Mateo, California?
The median household income in San Mateo, California is $152,156, compared to the U.S. median of $78,145.
What is the median home price in San Mateo, California?
The median home price in San Mateo, California is $376,982, compared to the U.S. median of $242,182.
What is the unemployment rate in San Mateo, California?
The unemployment rate in San Mateo, California is 4.3%, compared to the U.S. average of 5.2%.