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2025 Compare Cities People:
San Marino, CA vs Rossmoor, CA

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Highlights
- Rossmoor is 0% more densely populated than San Marino.
- People are 6.9% less likely to be married in Rossmoor.
- The Median Age is 1.7 years older in Rossmoor.
 San Marino, CARossmoor, CAUnited States
 Population  Unlock11,822329,725,481
 Female Population48.6%  Unlock50.5%
 Male Population51.4%  Unlock49.5%
 Median Age  Unlock47.338.4
 space3
 Population - 201013,102  Unlock309,327,143
 Population - 2000  Unlock10,298285,036,114
 Population - 199012,959  Unlock251,960,433
 Pop. 2000 to Now  Unlock6.6%15.6%
 Pop. 1990 to Now-1.3%  Unlock30.8%
 space4
 Population Density  Unlock7,661.793.4
 Land Area3.8  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 San Marino, CARossmoor, CAUnited States
 Age 0 to 45.4%  Unlock5.9%
 Age 5 to 9  Unlock7.5%6.1%
 Age 10 to 145.7%  Unlock6.6%
 Age 15 to 17  Unlock5.4%3.9%
 Age 18 to 202.2%  Unlock4.0%
 Age 21 to 24  Unlock3.7%5.2%
 Age 25 to 3410.4%  Unlock13.8%
 Age 35 to 44  Unlock9.9%12.9%
 Age 45 to 5415.8%  Unlock12.6%
 Age 55 to 59  Unlock9.8%6.7%
 Age 60 to 648.0%  Unlock6.3%
 Age 65 to 74  Unlock12.1%9.6%
 Age 75 to 844.9%  Unlock4.5%
 Age 85 and over  Unlock2.6%1.9%
 space1
 Race
 San Marino, CARossmoor, CAUnited States
 White23.7%  Unlock59.4%
 Black  Unlock2.7%12.2%
 Asian66.5%  Unlock5.6%
 Native American  Unlock0.3%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races2.3%  Unlock3.2%
 Hispanic  Unlock14.3%18.4%
 space2
 Marriage & Family
 San Marino, CARossmoor, CAUnited States
 Married Population65.9%  Unlock49.8%
     Currently Married  Unlock60.4%48.0%
 Married but Separated0.1%  Unlock1.8%
 Single Population  Unlock38.6%50.2%
 Never Married25.6%  Unlock33.8%
 Divorced  Unlock8.9%10.8%
 Widowed5.6%  Unlock5.6%
 space5
 Household Size  Unlock2.922.60
 Households3,942  Unlock124,010,992
 Family Households  Unlock3,30380,755,759
     Married couple, w/children35.7%  Unlock30.5%
     Married couple, no children  Unlock43.1%42.9%
 Non Family Households513  Unlock43,255,233
     Single householder, w/children  Unlock7.2%15.8%
     Single householder, no children10.6%  Unlock10.8%
Voting
Reviews for San Marino    2 Reviews
jane · San Marino, CA
Democrates 63%???
Over 15 years ago

I can't believe that the voters in this city -- always highly REPUBLICAN--are composed of 63% Democrats and in the 30s for republicans. I am a Democrat but was  More

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Stef · Norco, CA
Nice Growing Up There
Over 18 years ago

Our family lived right on the border of San Marino in the 50's and 60's. We went to the fine schools there and enjoyed a wonderful education. There were only 2  More

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Reviews for Rossmoor    0 Reviews

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Learn More About San Marino, California
Overview
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Learn More About Rossmoor, California
Overview
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