San Lorenzo, California Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
San Lorenzo, 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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D
Education Well below average
Source: Map AI Methodology
Population
| Metric | San Lorenzo | California Avg | U.S. Average |
|---|---|---|---|
| Population | 28,612 | 39,245,658 | 337,468,954 |
| Population density (per sq mi) | 9331.4 | 239.4 | 86.4 |
| Population growth (%/yr) | 0.03% | 0.19% | 0.59% |
| Median age | 42.9 | 35.5 | 37.3 |
| Households | 8,464 | 13,531,619 | 130,235,071 |
Population in San Lorenzo grew by 13.4% from 2009 to 2024, reaching 28,612 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in San Lorenzo is Millennials, aged 29–44, at 22.8% of residents. That is 0.9 points below California as a whole.
- Gen Z 13–28 5,882 20.6% -1.2 pts
- Millennials 29–44 6,526 22.8% -0.9 pts
- Gen X 45–60 6,194 21.6% +1.8 pts
- Boomers 61–79 4,633 16.2% +0.9 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 49.7% of the people living in San Lorenzo and men 50.3%.
- Women 49.7% California 49.9%
- Men 50.3% California 50.1%
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100% of everyone living in San Lorenzo
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Economy
San Lorenzo has a the economy index of B, which means it is quite prosperous.
| Metric | San Lorenzo | California Avg | U.S. Average |
|---|---|---|---|
| Median household income | $111,304 | $99,161 | $80,455 |
| Income growth (%/yr) | 4.94% | 5.57% | 4.80% |
| Unemployment rate | 5.1% | 6.6% | 5.2% |
The median household income in San Lorenzo is about 12% higher than in California.
Housing
| Metric | San Lorenzo | California Avg | U.S. Average |
|---|---|---|---|
| Median home price | $241,499 | $650,794 | $248,835 |
| Median rent | $2,158 | $2,036 | $1,407 |
| Homeownership rate | 66.5% | 55.9% | 65.2% |
The median home price in San Lorenzo is about 9.3 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,158 per month for that long.
Commute Time & Mobility
Commuters in San Lorenzo spend about 55 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 230 hours, about 9.6 full days, spent commuting.
| Metric | San Lorenzo | California Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 27.6 | 23.5 | 22.4 |
| Round-trip commute (min) | 55.2 | 47.0 | 44.8 |
| Yearly time spent (hours) | 230 | 196 | 187 |
| Estimated yearly cost | $7,131 | $6,065 | $5,790 |
| Work from home | 8.6% | 17.2% | 15.0% |
| Highway traffic (vehicles/day) | 55,469 | 16,509 | 8,813 |
| Local road traffic (vehicles/day) | 4,322 | 2,449 | 1,355 |
The average commute time in San Lorenzo is 28 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 Lorenzo has a education index of D, which means it is barely educated.
| Metric | San Lorenzo | California Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 24.3% | 33.0% | 31.6% |
| Average household size | 3.35 | 2.84 | 2.53 |
Health
San Lorenzo has a health index of A, which means it is very healthy.
| Metric | San Lorenzo | California Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 80.7 | 79.6 | 78.3 |
| Self-rated poor health | 14.9% | 16.4% | 16.3% |
| Smokers | 12.2% | 13.9% | 19.0% |
San Lorenzo, CA Compared With Nearby Cities
San Lorenzo, CA is the 4th largest of the 5 cities compared here, 28,612 residents against a local median of 72,527. The measure that sets San Lorenzo, CA apart most is median home price: $241,499, 63% below the local median of $649,019.
The cities themselves spread $294,029 on median home price, so San Lorenzo, CA sits at one end of an already wide local range rather than apart from it. San Lorenzo, CA has the 5th highest median home price of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| San Lorenzo, CA | 28,612 | $111,304 #3/5 | $241,499 #5/5 | 27.6 min #1/5 |
| Ashland, CA | 22,071 | $83,561 | $506,984 | 28.4 min |
| San Leandro, CA | 87,097 | $101,625 | $663,442 | 30.5 min |
| Hayward, CA | 153,435 | $113,608 | $634,595 | 30.8 min |
| Castro Valley, CA | 57,957 | $136,046 | $801,013 | 30.0 min |
Frequently Asked Questions
Common questions about San Lorenzo, California.
What is the population of San Lorenzo, California?
About 28,612 people live in San Lorenzo, California, in 8,464 households of 3.3 people on average. The median age is 42.9, so residents are older than the U.S. median of 37.3 by about 6 years.
Is San Lorenzo, California mostly urban or rural?
Averaged over its land area, San Lorenzo, California has 9,331 people per square mile, a density typical of a city. That is about 108 times the U.S. average of 86.
Can a typical household afford a home in San Lorenzo, California?
The median home costs 2.2 times the median household income ($241,499 against $111,304), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $2,158 a month takes about 23% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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