2025 Compare Cities People:
South San Francisco, CA vs Carlsbad, CA

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Highlights
- Carlsbad is 0% more densely populated than South San Francisco.
- People are 8.1% more likely to be married in Carlsbad.
- The Median Age is 0.4 years older in Carlsbad.
 South San Francisco, CACarlsbad, CAUnited States
 Population  Unlock114,858329,725,481
 Female Population49.8%  Unlock50.5%
 Male Population50.2%  Unlock49.5%
 Median Age  Unlock42.538.4
 space3
 Population - 201063,674  Unlock309,327,143
 Population - 2000  Unlock78,247285,036,114
 Population - 199054,312  Unlock251,960,433
 Pop. 2000 to Now  Unlock47.7%15.6%
 Pop. 1990 to Now22.6%  Unlock30.8%
 space4
 Population Density  Unlock3,042.693.4
 Land Area9.2  Unlock3,531,905.4
 Water Area  Unlock1.3264,836.8
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 Est. Total Population By Age
 South San Francisco, CACarlsbad, CAUnited States
 Age 0 to 44.6%  Unlock5.9%
 Age 5 to 9  Unlock5.7%6.1%
 Age 10 to 144.9%  Unlock6.6%
 Age 15 to 17  Unlock4.7%3.9%
 Age 18 to 203.1%  Unlock4.0%
 Age 21 to 24  Unlock3.7%5.2%
 Age 25 to 3414.4%  Unlock13.8%
 Age 35 to 44  Unlock13.7%12.9%
 Age 45 to 5414.8%  Unlock12.6%
 Age 55 to 59  Unlock8.0%6.7%
 Age 60 to 647.2%  Unlock6.3%
 Age 65 to 74  Unlock9.3%9.6%
 Age 75 to 844.4%  Unlock4.5%
 Age 85 and over  Unlock2.4%1.9%
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 Race
 South San Francisco, CACarlsbad, CAUnited States
 White21.5%  Unlock59.4%
 Black  Unlock1.2%12.2%
 Asian42.8%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.9%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races2.9%  Unlock3.2%
 Hispanic  Unlock15.9%18.4%
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 Marriage & Family
 South San Francisco, CACarlsbad, CAUnited States
 Married Population53.3%  Unlock49.8%
     Currently Married  Unlock56.6%48.0%
 Married but Separated1.4%  Unlock1.8%
 Single Population  Unlock42.4%50.2%
 Never Married33.3%  Unlock33.8%
 Divorced  Unlock11.2%10.8%
 Widowed5.3%  Unlock5.6%
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 Household Size  Unlock2.582.60
 Households21,895  Unlock124,010,992
 Family Households  Unlock31,14480,755,759
     Married couple, w/children31.7%  Unlock30.5%
     Married couple, no children  Unlock45.8%42.9%
 Non Family Households5,831  Unlock43,255,233
     Single householder, w/children  Unlock10.5%15.8%
     Single householder, no children15.6%  Unlock10.8%
Reviews for South San Francisco    5 Reviews

It's amazing, but many, many people, including people who live in SF, think that SSF is just a part of SF. Not true. We're right across the highway from SFO, which is  More

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Over 17 years ago

One frustrating thing about South City weather is the number of overcast & foggy days, as compared to other nearby cities on the Peninsula. You can literally look  More

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Over 19 years ago

Been living in bayview hunters point for about 12 years now. What I can say that it's a rough place to live, no one cares about us and the mayor of San Francisco  More

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Start Your Review of South San Francisco

Reviews for Carlsbad    38 Reviews

I've lived in Carlsbad (92008) for 8 years now and really appreciate all that it has to offer. Yes, ALL of San Diego County is expensive, but Carlsbad has [possibly]  More

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Over 4 years ago

Carlson has the worst winters. It averages about 10 meters of snow per week. Every shop is  More

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Ok, I get it, the climate is mild and tolerable but even that is over-rated when you consider how many cloudy days there are in this town. The sun coming out at 3 and  More

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