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2026 Compare Cities People:
Castaic, CA vs Paradise Valley, AZ

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Highlights
- Paradise Valley is 0% more densely populated than Castaic.
- People are 13.7% more likely to be married in Paradise Valley.
- The Median Age is 16.2 years older in Paradise Valley.
 Castaic, CAParadise Valley, AZUnited States
 Population  Unlock12,666329,725,481
 Female Population50.0%  Unlock50.5%
 Male Population50.0%  Unlock49.5%
 Median Age  Unlock54.438.4
 space3
 Population - 201018,134  Unlock309,327,143
 Population - 2000  Unlock13,664285,036,114
 Population - 19907,647  Unlock251,960,433
 Pop. 2000 to Now  Unlock8.7%15.6%
 Pop. 1990 to Now149.0%  Unlock30.8%
 space4
 Population Density  Unlock823.493.4
 Land Area7.3  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Castaic, CAParadise Valley, AZUnited 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  Unlock5.0%3.9%
 Age 18 to 203.0%  Unlock4.0%
 Age 21 to 24  Unlock2.6%5.2%
 Age 25 to 3413.4%  Unlock13.8%
 Age 35 to 44  Unlock9.3%12.9%
 Age 45 to 5415.2%  Unlock12.6%
 Age 55 to 59  Unlock9.5%6.7%
 Age 60 to 646.1%  Unlock6.3%
 Age 65 to 74  Unlock16.5%9.6%
 Age 75 to 842.5%  Unlock4.5%
 Age 85 and over  Unlock3.7%1.9%
 space1
 Race
 Castaic, CAParadise Valley, AZUnited States
 White49.0%  Unlock59.4%
 Black  Unlock0.7%12.2%
 Asian11.9%  Unlock5.6%
 Native American  Unlock1.2%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races7.3%  Unlock3.2%
 Hispanic  Unlock9.9%18.4%
 space2
 Marriage & Family
 Castaic, CAParadise Valley, AZUnited States
 Married Population59.6%  Unlock49.8%
     Currently Married  Unlock67.3%48.0%
 Married but Separated1.2%  Unlock1.8%
 Single Population  Unlock32.2%50.2%
 Never Married28.3%  Unlock33.8%
 Divorced  Unlock5.8%10.8%
 Widowed5.1%  Unlock5.6%
 space5
 Household Size  Unlock2.492.60
 Households5,656  Unlock124,010,992
 Family Households  Unlock4,07780,755,759
     Married couple, w/children41.3%  Unlock30.5%
     Married couple, no children  Unlock63.7%42.9%
 Non Family Households929  Unlock43,255,233
     Single householder, w/children  Unlock6.6%15.8%
     Single householder, no children11.1%  Unlock10.8%
Voting
Reviews for Castaic    3 Reviews
Plasma · Castaic, CA
Pros and Cons
Over 10 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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Steve · Castaic, CA
Castaic
Over 12 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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Jayne · Valencia, CA
Safe to live?
Over 13 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 Paradise Valley    1 Reviews
Mel · Paradise Valley, AZ
Town of Paradise Valley Arizona
Over 10 years ago

In addition to some of the best climate, other than months of mid June through mid October, we have many hiking, tennis, and golf opportunities. Sky Harbor airport is  More

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Learn More About Castaic, California
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