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2025 Compare Cities People:
Fullerton, CA vs Castaic, CA

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Highlights
- Castaic is 0% more densely populated than Fullerton.
- People are 17.4% more likely to be married in Castaic.
- The Median Age is 2.8 years older in Castaic.
 Fullerton, CACastaic, CAUnited States
 Population  Unlock18,017329,725,481
 Female Population49.8%  Unlock50.5%
 Male Population50.2%  Unlock49.5%
 Median Age  Unlock38.238.4
 space3
 Population - 2010135,251  Unlock309,327,143
 Population - 2000  Unlock18,001285,036,114
 Population - 1990114,144  Unlock251,960,433
 Pop. 2000 to Now  Unlock5.8%15.6%
 Pop. 1990 to Now22.6%  Unlock30.8%
 space4
 Population Density  Unlock2,481.093.4
 Land Area22.4  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Fullerton, CACastaic, CAUnited States
 Age 0 to 46.8%  Unlock5.9%
 Age 5 to 9  Unlock6.5%6.1%
 Age 10 to 147.1%  Unlock6.6%
 Age 15 to 17  Unlock4.5%3.9%
 Age 18 to 204.6%  Unlock4.0%
 Age 21 to 24  Unlock4.2%5.2%
 Age 25 to 3415.6%  Unlock13.8%
 Age 35 to 44  Unlock12.5%12.9%
 Age 45 to 5412.8%  Unlock12.6%
 Age 55 to 59  Unlock9.2%6.7%
 Age 60 to 646.1%  Unlock6.3%
 Age 65 to 74  Unlock7.5%9.6%
 Age 75 to 844.1%  Unlock4.5%
 Age 85 and over  Unlock0.9%1.9%
 space1
 Race
 Fullerton, CACastaic, CAUnited States
 White32.2%  Unlock59.4%
 Black  Unlock1.7%12.2%
 Asian23.9%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock1.1%0.4%
 Two or More Races2.8%  Unlock3.2%
 Hispanic  Unlock28.8%18.4%
 space2
 Marriage & Family
 Fullerton, CACastaic, CAUnited States
 Married Population50.8%  Unlock49.8%
     Currently Married  Unlock58.5%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock40.4%50.2%
 Never Married37.1%  Unlock33.8%
 Divorced  Unlock7.0%10.8%
 Widowed4.7%  Unlock5.6%
 space5
 Household Size  Unlock3.192.60
 Households46,434  Unlock124,010,992
 Family Households  Unlock4,72780,755,759
     Married couple, w/children33.6%  Unlock30.5%
     Married couple, no children  Unlock41.1%42.9%
 Non Family Households13,412  Unlock43,255,233
     Single householder, w/children  Unlock6.5%15.8%
     Single householder, no children10.7%  Unlock10.8%
Voting
Reviews for Fullerton    13 Reviews
j · Fullerton, CA
love it
Over 4 years ago

ive lived in this city for a very long time, and it is a great and quiet place to live, with some nice shopping areas and great  More

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David · 
Fullerton: Good food, good music but bad roads.
Over 6 years ago

I have been living and working in Fullerton for almost 20 years now and have seen it change through the years, both for the better and worse. Fullerton is a half  More

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Ashley · Fullerton, CA
Beautiful!
Over 9 years ago

The weather here is gorgeous! Warm and rarely rains.  More

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Reviews for Castaic    3 Reviews
Plasma · Castaic, CA
Pros and Cons
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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Steve · Castaic, CA
Castaic
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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Jayne · Valencia, CA
Safe to live?
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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Learn More About Fullerton, California
Overview
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Learn More About Castaic, California
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