Walnut Creek, California Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Walnut Creek, 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 Top grade
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A+
Income Top grade
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A+
Education Top grade
Source: Map AI Methodology
Population
| Metric | Walnut Creek | California Avg | U.S. Average |
|---|---|---|---|
| Population | 66,089 | 39,245,658 | 337,468,954 |
| Population density (per sq mi) | 3342.5 | 239.4 | 86.4 |
| Population growth (%/yr) | 0.43% | 0.19% | 0.59% |
| Median age | 47.3 | 35.5 | 37.3 |
| Households | 30,856 | 13,531,619 | 130,235,071 |
Population in Walnut Creek grew by 8.8% from 2009 to 2024, reaching 66,089 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Walnut Creek is Boomers, aged 61–79, at 22.5% of residents. That is 7.2 points above California as a whole.
- Gen Z 13–28 10,312 15.6% -6.1 pts
- Millennials 29–44 13,602 20.6% -3.1 pts
- Gen X 45–60 13,147 19.9% on par
- Boomers 61–79 14,871 22.5% +7.2 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 52.9% of the people living in Walnut Creek and men 47.1%.
- Women 52.9% California 49.9%
- Men 47.1% California 50.1%
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Economy
Walnut Creek has a the economy index of A+, which means it is exceptionally prosperous.
| Metric | Walnut Creek | California Avg | U.S. Average |
|---|---|---|---|
| Median household income | $132,510 | $99,161 | $80,455 |
| Income growth (%/yr) | 5.80% | 5.57% | 4.80% |
| Unemployment rate | 5.9% | 6.6% | 5.2% |
The median household income in Walnut Creek is about 34% higher than in California.
Housing
| Metric | Walnut Creek | California Avg | U.S. Average |
|---|---|---|---|
| Median home price | $698,090 | $650,794 | $248,835 |
| Median rent | $2,683 | $2,036 | $1,407 |
| Homeownership rate | 64.3% | 55.9% | 65.2% |
The median home price in Walnut Creek is about 21.7 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,683 per month for that long.
Commute Time & Mobility
Commuters in Walnut Creek spend about 50 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 209 hours, about 8.7 full days, spent commuting.
| Metric | Walnut Creek | California Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 25.1 | 23.5 | 22.4 |
| Round-trip commute (min) | 50.2 | 47.0 | 44.8 |
| Yearly time spent (hours) | 209 | 196 | 187 |
| Estimated yearly cost | $6,484 | $6,065 | $5,790 |
| Work from home | 30.4% | 17.2% | 15.0% |
| Highway traffic (vehicles/day) | 37,458 | 16,509 | 8,813 |
| Local road traffic (vehicles/day) | 4,685 | 2,449 | 1,355 |
The average commute time in Walnut Creek is 25 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
Walnut Creek has a education index of A+, which means it is exceptionally educated.
| Metric | Walnut Creek | California Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 66.3% | 33.0% | 31.6% |
| Average household size | 2.11 | 2.84 | 2.53 |
Health
Walnut Creek has a health index of A+, which means it is exceptionally healthy.
| Metric | Walnut Creek | California Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 83.2 | 79.6 | 78.3 |
| Self-rated poor health | 9.7% | 16.4% | 16.3% |
| Smokers | 6.5% | 13.9% | 19.0% |
Frequently Asked Questions
Common questions about Walnut Creek, California.
How many people live in Walnut Creek, California?
About 66,089 people live in Walnut Creek, California, in 30,856 households of 2.1 people on average. The median age is 47.3, so residents are older than the U.S. median of 37.3 by about 10 years.
Is Walnut Creek, California mostly urban or rural?
Averaged over its land area, Walnut Creek, California has 3,343 people per square mile, a density typical of a city. That is about 39 times the U.S. average of 86.
Is Walnut Creek, California an affordable place to live?
The median home costs 5.3 times the median household income ($698,090 against $132,510), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $2,683 a month takes about 24% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How educated are people in Walnut Creek, California?
66.3% of adults in Walnut Creek, California hold a bachelor's degree or higher (about 7 in 10), well above the U.S. share of 31.6%.
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