Granite Bay, California Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Granite Bay, 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 | Granite Bay | California Avg | U.S. Average |
|---|---|---|---|
| Population | 20,314 | 39,245,658 | 337,468,954 |
| Population density (per sq mi) | 940.8 | 239.4 | 86.4 |
| Population growth (%/yr) | -0.01% | 0.19% | 0.59% |
| Median age | 48.1 | 35.5 | 37.3 |
| Households | 7,029 | 13,531,619 | 130,235,071 |
Population in Granite Bay declined by 1.1% from 2009 to 2024, reaching 20,314 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Granite Bay is Gen X, aged 45–60, at 27.3% of residents. That is 7.4 points above California as a whole.
- Gen Z 13–28 3,751 18.5% -3.3 pts
- Millennials 29–44 3,029 14.9% -8.8 pts
- Gen X 45–60 5,546 27.3% +7.4 pts
- Boomers 61–79 4,000 19.7% +4.4 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 50.9% of the people living in Granite Bay and men 49.1%.
- Women 50.9% California 49.9%
- Men 49.1% California 50.1%
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Economy
Granite Bay has a the economy index of A+, which means it is exceptionally prosperous.
| Metric | Granite Bay | California Avg | U.S. Average |
|---|---|---|---|
| Median household income | $178,780 | $99,161 | $80,455 |
| Income growth (%/yr) | 5.14% | 5.57% | 4.80% |
| Unemployment rate | 5.2% | 6.6% | 5.2% |
The median household income in Granite Bay is about 80% higher than in California.
Housing
| Metric | Granite Bay | California Avg | U.S. Average |
|---|---|---|---|
| Median home price | $901,226 | $650,794 | $248,835 |
| Median rent | $2,766 | $2,036 | $1,407 |
| Homeownership rate | 88.0% | 55.9% | 65.2% |
The median home price in Granite Bay is about 27.1 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,766 per month for that long.
Commute Time & Mobility
Commuters in Granite Bay spend about 45 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 186 hours, about 7.7 full days, spent commuting.
| Metric | Granite Bay | California Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 22.3 | 23.5 | 22.4 |
| Round-trip commute (min) | 44.5 | 47.0 | 44.8 |
| Yearly time spent (hours) | 186 | 196 | 187 |
| Estimated yearly cost | $5,752 | $6,065 | $5,790 |
| Work from home | 25.6% | 17.2% | 15.0% |
| Highway traffic (vehicles/day) | — | 16,509 | 8,813 |
| Local road traffic (vehicles/day) | 3,289 | 2,449 | 1,355 |
The average commute time in Granite Bay is 22 minutes, shorter 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
Granite Bay has a education index of A+, which means it is exceptionally educated.
| Metric | Granite Bay | California Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 52.8% | 33.0% | 31.6% |
| Average household size | 2.86 | 2.84 | 2.53 |
Health
Granite Bay has a health index of A+, which means it is exceptionally healthy.
| Metric | Granite Bay | California Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 82.2 | 79.6 | 78.3 |
| Self-rated poor health | 9.7% | 16.4% | 16.3% |
| Smokers | 9.1% | 13.9% | 19.0% |
Granite Bay, CA Compared With Nearby Cities
Granite Bay, CA is the smallest of the 4 cities compared here, 20,314 residents against a local median of 65,025. The measure that sets Granite Bay, CA apart most is median household income: $178,780, 48% above the local median of $121,140. That is the better end of the local range on this measure.
The cities themselves spread $39,470 on median household income, so Granite Bay, CA sits at one end of an already wide local range rather than apart from it. Granite Bay, CA has the highest median household income of the 4 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Granite Bay, CA | 20,314 | $178,780 #1/4 | $901,226 #2/4 | 22.3 min #2/4 |
| Orangevale, CA | 35,887 | $100,709 | $643,215 | 27.7 min |
| Rocklin, CA | 65,025 | $121,140 | $794,644 | 20.2 min |
| Folsom, CA | 83,916 | $140,179 | $1,144,230 | 22.9 min |
Frequently Asked Questions
Common questions about Granite Bay, California.
How big is Granite Bay, California by population?
About 20,314 people live in Granite Bay, California, in 7,029 households of 2.9 people on average. The median age is 48.1, so residents are older than the U.S. median of 37.3 by about 11 years.
How densely populated is Granite Bay, California?
Averaged over its land area, Granite Bay, California has 941 people per square mile, a density typical of a mix of suburbs, small towns and farmland. That is about 11 times the U.S. average of 86.
Is Granite Bay, California an affordable place to live?
The median home costs 5.0 times the median household income ($901,226 against $178,780), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $2,766 a month takes about 19% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How common is a college degree in Granite Bay, California?
52.8% of adults in Granite Bay, California hold a bachelor's degree or higher (about 5 in 10), well above the U.S. share of 31.6%.
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