Rosemont, California Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Rosemont, 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.
-
B
Health Around average
-
C
Income Below average
-
C
Education Below average
Source: Map AI Methodology
Population
| Metric | Rosemont | California Avg | U.S. Average |
|---|---|---|---|
| Population | 25,260 | 39,245,658 | 337,468,954 |
| Population density (per sq mi) | 5758.5 | 239.4 | 86.4 |
| Population growth (%/yr) | 0.44% | 0.19% | 0.59% |
| Median age | 36.7 | 35.5 | 37.3 |
| Households | 9,374 | 13,531,619 | 130,235,071 |
Population in Rosemont grew by 3.6% from 2009 to 2024, reaching 25,260 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Rosemont is Millennials, aged 29–44, at 23.1% of residents. That is 0.6 points below California as a whole.
- Gen Z 13–28 5,814 23.0% +1.3 pts
- Millennials 29–44 5,832 23.1% -0.6 pts
- Gen X 45–60 4,889 19.4% -0.5 pts
- Boomers 61–79 3,747 14.8% -0.4 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 52.0% of the people living in Rosemont and men 48.0%.
- Women 52.0% California 49.9%
- Men 48.0% California 50.1%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Rosemont
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Rosemont has a the economy index of C, which means it is somewhat prosperous.
| Metric | Rosemont | California Avg | U.S. Average |
|---|---|---|---|
| Median household income | $88,697 | $99,161 | $80,455 |
| Income growth (%/yr) | 5.43% | 5.57% | 4.80% |
| Unemployment rate | 5.5% | 6.6% | 5.2% |
The median household income in Rosemont is about 11% lower than in California.
Housing
| Metric | Rosemont | California Avg | U.S. Average |
|---|---|---|---|
| Median home price | $450,000 | $650,794 | $248,835 |
| Median rent | $1,837 | $2,036 | $1,407 |
| Homeownership rate | 61.8% | 55.9% | 65.2% |
The median home price in Rosemont is about 20.4 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,837 per month for that long.
Commute Time & Mobility
Commuters in Rosemont spend about 46 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 191 hours, about 8.0 full days, spent commuting.
| Metric | Rosemont | California Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 22.9 | 23.5 | 22.4 |
| Round-trip commute (min) | 45.9 | 47.0 | 44.8 |
| Yearly time spent (hours) | 191 | 196 | 187 |
| Estimated yearly cost | $5,924 | $6,065 | $5,790 |
| Work from home | 18.6% | 17.2% | 15.0% |
| Highway traffic (vehicles/day) | 49,063 | 16,509 | 8,813 |
| Local road traffic (vehicles/day) | 5,120 | 2,449 | 1,355 |
The average commute time in Rosemont is about the same as 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
Rosemont has a education index of C, which means it is somewhat educated.
| Metric | Rosemont | California Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 28.7% | 33.0% | 31.6% |
| Average household size | 2.67 | 2.84 | 2.53 |
Health
Rosemont has a health index of B, which means it is quite healthy.
| Metric | Rosemont | California Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 77.9 | 79.6 | 78.3 |
| Self-rated poor health | 14.3% | 16.4% | 16.3% |
| Smokers | 13.5% | 13.9% | 19.0% |
Rosemont, CA Compared With Nearby Cities
Rosemont, CA is the smallest of the 4 cities compared here, 25,260 residents against a local median of 50,195. Where Rosemont, CA breaks from the cities next to it is median household income, sitting 15% above the local median of $77,022 at $88,697. That is the better end of the local range on this measure.
The cities themselves spread $34,170 on median household income, so Rosemont, CA sits at one end of an already wide local range rather than apart from it. Rosemont, CA has the 2nd highest median household income of the 4 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Rosemont, CA | 25,260 | $88,697 #2/4 | $450,000 #3/4 | 22.9 min #2/4 |
| Arden-Arcade, CA | 92,545 | $77,022 | $472,536 | 22.4 min |
| Vineyard, CA | 40,205 | $108,176 | $453,406 | 28.4 min |
| Florin, CA | 50,195 | $74,006 | $359,512 | 24.0 min |
Frequently Asked Questions
Common questions about Rosemont, California.
How many people live in Rosemont, California?
About 25,260 people live in Rosemont, California, in 9,374 households of 2.7 people on average. The median age is 36.7, close to the U.S. median of 37.3.
Is Rosemont, California mostly urban or rural?
Averaged over its land area, Rosemont, California has 5,759 people per square mile, a density typical of a city. That is about 67 times the U.S. average of 86.
How affordable is housing in Rosemont, California?
The median home costs 5.1 times the median household income ($450,000 against $88,697), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,837 a month takes about 25% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
Analyze any area in the US
Get local demographics for any address, aggregated by drive time or radius, on the interactive map.
Explore the map →