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2025 Compare Cities People:
San Diego, CA vs Rockville, MD

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Highlights
- Rockville is 0% more densely populated than San Diego.
- People are 15.5% more likely to be married in Rockville.
- The Median Age is 3.8 years older in Rockville.
 San Diego, CARockville, MDUnited States
 Population  Unlock67,095329,725,481
 Female Population49.0%  Unlock50.5%
 Male Population51.0%  Unlock49.5%
 Median Age  Unlock39.238.4
 space3
 Population - 20101,305,632  Unlock309,327,143
 Population - 2000  Unlock47,388285,036,114
 Population - 19901,110,549  Unlock251,960,433
 Pop. 2000 to Now  Unlock46.7%15.6%
 Pop. 1990 to Now28.1%  Unlock30.8%
 space4
 Population Density  Unlock4,936.093.4
 Land Area325.6  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 San Diego, CARockville, MDUnited States
 Age 0 to 45.6%  Unlock5.9%
 Age 5 to 9  Unlock6.0%6.1%
 Age 10 to 145.5%  Unlock6.6%
 Age 15 to 17  Unlock3.2%3.9%
 Age 18 to 204.4%  Unlock4.0%
 Age 21 to 24  Unlock4.5%5.2%
 Age 25 to 3419.0%  Unlock13.8%
 Age 35 to 44  Unlock15.2%12.9%
 Age 45 to 5412.2%  Unlock12.6%
 Age 55 to 59  Unlock6.4%6.7%
 Age 60 to 645.2%  Unlock6.3%
 Age 65 to 74  Unlock9.0%9.6%
 Age 75 to 843.7%  Unlock4.5%
 Age 85 and over  Unlock2.6%1.9%
 space1
 Race
 San Diego, CARockville, MDUnited States
 White42.0%  Unlock59.4%
 Black  Unlock10.1%12.2%
 Asian16.9%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.4%  Unlock0.2%
 Other  Unlock1.1%0.4%
 Two or More Races4.3%  Unlock3.2%
 Hispanic  Unlock16.0%18.4%
 space2
 Marriage & Family
 San Diego, CARockville, MDUnited States
 Married Population46.4%  Unlock49.8%
     Currently Married  Unlock52.2%48.0%
 Married but Separated1.6%  Unlock1.8%
 Single Population  Unlock46.4%50.2%
 Never Married40.1%  Unlock33.8%
 Divorced  Unlock9.4%10.8%
 Widowed4.0%  Unlock5.6%
 space5
 Household Size  Unlock2.502.60
 Households509,347  Unlock124,010,992
 Family Households  Unlock17,03980,755,759
     Married couple, w/children33.2%  Unlock30.5%
     Married couple, no children  Unlock41.4%42.9%
 Non Family Households204,848  Unlock43,255,233
     Single householder, w/children  Unlock12.7%15.8%
     Single householder, no children11.6%  Unlock10.8%
Voting
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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Reviews for Rockville    17 Reviews
SHA.1974 · Rockville, MD
If you are NOT WHITE don’t move here!
Over 5 years ago

From MY PERSONAL EXPERIENCE to many other people's comments and experiences: - The DC Metropolitan area (Maryland, DC, and Virginia) have an intense white supremacy /  More

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Hello · Dallas, TX
Pretty Awesome - depending on what you want
Over 6 years ago

Having practically grown up here, it is fair to think I am biased. Before making assumptions about my opinion, though, I've lived in multiple cities in these states -  More

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Alison · Rockville, MD
N/A
Over 10 years ago

No comment at this  More

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Learn More About San Diego, California
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Learn More About Rockville, Maryland
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