2025 Compare Cities People:
Castaic, CA vs St. Petersburg, FL

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Highlights
- St. Petersburg is 0% more densely populated than Castaic.
- People are 28.1% less likely to be married in St. Petersburg.
- The Median Age is 4.7 years older in St. Petersburg.
 Castaic, CASt. Petersburg, FLUnited States
 Population  Unlock258,245329,725,481
 Female Population50.0%  Unlock50.5%
 Male Population50.0%  Unlock49.5%
 Median Age  Unlock42.938.4
 space3
 Population - 201018,134  Unlock309,327,143
 Population - 2000  Unlock248,232285,036,114
 Population - 19907,647  Unlock251,960,433
 Pop. 2000 to Now  Unlock7.9%15.6%
 Pop. 1990 to Now149.0%  Unlock30.8%
 space4
 Population Density  Unlock4,175.593.4
 Land Area7.3  Unlock3,531,905.4
 Water Area  Unlock76.2264,836.8
 space
 Est. Total Population By Age
 Castaic, CASt. Petersburg, FLUnited States
 Age 0 to 46.5%  Unlock5.9%
 Age 5 to 9  Unlock4.9%6.1%
 Age 10 to 148.1%  Unlock6.6%
 Age 15 to 17  Unlock2.7%3.9%
 Age 18 to 203.0%  Unlock4.0%
 Age 21 to 24  Unlock4.7%5.2%
 Age 25 to 3413.4%  Unlock13.8%
 Age 35 to 44  Unlock12.4%12.9%
 Age 45 to 5415.2%  Unlock12.6%
 Age 55 to 59  Unlock7.9%6.7%
 Age 60 to 646.1%  Unlock6.3%
 Age 65 to 74  Unlock11.3%9.6%
 Age 75 to 842.5%  Unlock4.5%
 Age 85 and over  Unlock2.3%1.9%
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 Race
 Castaic, CASt. Petersburg, FLUnited States
 White49.0%  Unlock59.4%
 Black  Unlock20.7%12.2%
 Asian11.9%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races7.3%  Unlock3.2%
 Hispanic  Unlock8.2%18.4%
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 Marriage & Family
 Castaic, CASt. Petersburg, FLUnited States
 Married Population59.6%  Unlock49.8%
     Currently Married  Unlock41.0%48.0%
 Married but Separated1.2%  Unlock1.8%
 Single Population  Unlock57.1%50.2%
 Never Married28.3%  Unlock33.8%
 Divorced  Unlock14.9%10.8%
 Widowed5.1%  Unlock5.6%
 space5
 Household Size  Unlock2.262.60
 Households5,656  Unlock124,010,992
 Family Households  Unlock59,05180,755,759
     Married couple, w/children41.3%  Unlock30.5%
     Married couple, no children  Unlock48.1%42.9%
 Non Family Households929  Unlock43,255,233
     Single householder, w/children  Unlock15.7%15.8%
     Single householder, no children11.1%  Unlock10.8%
Reviews for Castaic    3 Reviews

Over 9 years ago

I've lived in northern Castaic for 14 years so this review is for northern Castaic Pros: convenient freeway access, boating on Lake Castaic, lots of gas stations,  More

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Over 11 years ago

Formerly a "truck stop" town, Castaic is the last town before going over the Grapevine, heading North on I-5 towards San Francisco. The town is unincorporated and sits  More

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Over 12 years ago

I currently live in Valencia. Before I consider purchasing a house in Castaic off Lake Hughes Rd and closer to the lake, is it safe to live in this neighborhood? Any  More

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Reviews for St. Petersburg    56 Reviews

I grew up here (1968). All the people who have posted how awful it is are not going to be happy anywhere because they see what they see. Thats the evolution of self as  More

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I moved here because my fiance was going to school here and two rents didn't make sense. Visiting was always great! However, after living here for a couple years it's  More

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Over 5 years ago

True the location is good, and during the Winters, it's really nice in St. Pete, but the Summers and brutally steaming HOT, and the St. Pete Police don't do their job  More

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