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

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Highlights
- San Diego is 0% more densely populated than San Marino.
- People are 29.5% less likely to be married in San Diego.
- The Median Age is 10.2 years younger in San Diego.
 San Marino, CASan Diego, CAUnited States
 Population  Unlock1,385,398329,725,481
 Female Population48.6%  Unlock50.5%
 Male Population51.4%  Unlock49.5%
 Median Age  Unlock35.438.4
 space3
 Population - 201013,102  Unlock309,327,143
 Population - 2000  Unlock1,223,400285,036,114
 Population - 199012,959  Unlock251,960,433
 Pop. 2000 to Now  Unlock16.3%15.6%
 Pop. 1990 to Now-1.3%  Unlock30.8%
 space4
 Population Density  Unlock4,255.093.4
 Land Area3.8  Unlock3,531,905.4
 Water Area  Unlock46.8264,836.8
 space
 Est. Total Population By Age
 San Marino, CASan Diego, CAUnited States
 Age 0 to 45.4%  Unlock5.9%
 Age 5 to 9  Unlock5.4%6.1%
 Age 10 to 145.7%  Unlock6.6%
 Age 15 to 17  Unlock3.1%3.9%
 Age 18 to 202.2%  Unlock4.0%
 Age 21 to 24  Unlock6.3%5.2%
 Age 25 to 3410.4%  Unlock13.8%
 Age 35 to 44  Unlock14.3%12.9%
 Age 45 to 5415.8%  Unlock12.6%
 Age 55 to 59  Unlock5.7%6.7%
 Age 60 to 648.0%  Unlock6.3%
 Age 65 to 74  Unlock8.0%9.6%
 Age 75 to 844.9%  Unlock4.5%
 Age 85 and over  Unlock1.6%1.9%
 space1
 Race
 San Marino, CASan Diego, CAUnited States
 White23.7%  Unlock59.4%
 Black  Unlock5.7%12.2%
 Asian66.5%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races2.3%  Unlock3.2%
 Hispanic  Unlock30.1%18.4%
 space2
 Marriage & Family
 San Marino, CASan Diego, CAUnited States
 Married Population65.9%  Unlock49.8%
     Currently Married  Unlock44.8%48.0%
 Married but Separated0.1%  Unlock1.8%
 Single Population  Unlock53.6%50.2%
 Never Married25.6%  Unlock33.8%
 Divorced  Unlock9.5%10.8%
 Widowed5.6%  Unlock5.6%
 space5
 Household Size  Unlock2.642.60
 Households3,942  Unlock124,010,992
 Family Households  Unlock304,49980,755,759
     Married couple, w/children35.7%  Unlock30.5%
     Married couple, no children  Unlock41.9%42.9%
 Non Family Households513  Unlock43,255,233
     Single householder, w/children  Unlock13.4%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 San Diego    319 Reviews
riley · Escondido, CA
Can you afford to live here?
Over 1 years ago

I have lived in San Diego for more than half my life (I am 30) and love it. It has something for everyone and more from arts, to sporting events, and all cuisine is  More

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Mark · San Diego, CA
America's finest city? If not, pretty darn close.
Over 3 years ago

The only real knock again San Diego is the cost of living, but it is paradise compared to most cities of similar size. Those who complain about the traffic here or say  More

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Peter · San Diego, CA
Beautiful Place, Too Crowded and Expensive.
Over 3 years ago

I have lived in San Diego since 1968 and I am now almost 62 years old. I love San Diego, I really do. But it has become so crowded and so expensive over the years. It  More

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Learn More About San Marino, California
Overview
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