Rocklin, California Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Rocklin, 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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A
Education Above average
Source: Map AI Methodology
Population
| Metric | Rocklin | California Avg | U.S. Average |
|---|---|---|---|
| Population | 65,025 | 39,245,658 | 337,468,954 |
| Population density (per sq mi) | 3273.5 | 239.4 | 86.4 |
| Population growth (%/yr) | 2.10% | 0.19% | 0.59% |
| Median age | 37.1 | 35.5 | 37.3 |
| Households | 23,380 | 13,531,619 | 130,235,071 |
Population in Rocklin grew by 41.4% from 2009 to 2024, reaching 65,025 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Rocklin is Millennials, aged 29–44, at 21.9% of residents. That is 1.8 points below California as a whole.
- Gen Z 13–28 14,035 21.6% -0.1 pts
- Millennials 29–44 14,244 21.9% -1.8 pts
- Gen X 45–60 14,167 21.8% +1.9 pts
- Boomers 61–79 8,910 13.7% -1.6 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 51.1% of the people living in Rocklin and men 48.9%.
- Women 51.1% California 49.9%
- Men 48.9% California 50.1%
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Economy
Rocklin has a the economy index of B, which means it is quite prosperous.
| Metric | Rocklin | California Avg | U.S. Average |
|---|---|---|---|
| Median household income | $121,140 | $99,161 | $80,455 |
| Income growth (%/yr) | 4.76% | 5.57% | 4.80% |
| Unemployment rate | 4.5% | 6.6% | 5.2% |
The median household income in Rocklin is about 22% higher than in California.
Housing
| Metric | Rocklin | California Avg | U.S. Average |
|---|---|---|---|
| Median home price | $794,644 | $650,794 | $248,835 |
| Median rent | $2,240 | $2,036 | $1,407 |
| Homeownership rate | 67.6% | 55.9% | 65.2% |
The median home price in Rocklin is about 29.6 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,240 per month for that long.
Commute Time & Mobility
Commuters in Rocklin spend about 40 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 168 hours, about 7.0 full days, spent commuting.
| Metric | Rocklin | California Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 20.2 | 23.5 | 22.4 |
| Round-trip commute (min) | 40.3 | 47.0 | 44.8 |
| Yearly time spent (hours) | 168 | 196 | 187 |
| Estimated yearly cost | $5,211 | $6,065 | $5,790 |
| Work from home | 24.1% | 17.2% | 15.0% |
| Highway traffic (vehicles/day) | 29,747 | 16,509 | 8,813 |
| Local road traffic (vehicles/day) | 4,398 | 2,449 | 1,355 |
The average commute time in Rocklin is 20 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
Rocklin has a education index of A, which means it is very educated.
| Metric | Rocklin | California Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 42.7% | 33.0% | 31.6% |
| Average household size | 2.73 | 2.84 | 2.53 |
Health
Rocklin has a health index of A, which means it is very healthy.
| Metric | Rocklin | California Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 80.4 | 79.6 | 78.3 |
| Self-rated poor health | 10.3% | 16.4% | 16.3% |
| Smokers | 10.5% | 13.9% | 19.0% |
Rocklin, CA Compared With Nearby Cities
Rocklin, CA is the 2nd largest of the 4 cities compared here, 65,025 residents against a local median of 43,132. Rocklin, CA's median home price, at $794,644, runs 22% above the $653,523 typical of the cities around it.
The cities themselves spread $511,867 on median home price, so Rocklin, CA sits at one end of an already wide local range rather than apart from it. Rocklin, CA has the 2nd highest median home price of the 4 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Rocklin, CA | 65,025 | $121,140 #2/4 | $794,644 #2/4 | 20.2 min #1/4 |
| Roseville, CA | 133,239 | $112,315 | $653,523 | 21.7 min |
| Lincoln, CA | 43,132 | $110,692 | $389,360 | 23.4 min |
| Granite Bay, CA | 20,314 | $178,780 | $901,226 | 22.3 min |
Frequently Asked Questions
Common questions about Rocklin, California.
How many people live in Rocklin, California?
About 65,025 people live in Rocklin, California, in 23,380 households of 2.7 people on average. The median age is 37.1, close to the U.S. median of 37.3.
Is Rocklin, California mostly urban or rural?
Averaged over its land area, Rocklin, California has 3,273 people per square mile, a density typical of a city. That is about 38 times the U.S. average of 86.
Is Rocklin, California an affordable place to live?
The median home costs 6.6 times the median household income ($794,644 against $121,140), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $2,240 a month takes about 22% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How common is a college degree in Rocklin, California?
42.7% of adults in Rocklin, California hold a bachelor's degree or higher (about 1 in 2), well above the U.S. share of 31.6%.
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