2026 Compare Cities People:
Castaic, CA vs Rockford, MI

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Highlights
- Rockford is 0% more densely populated than Castaic.
- People are 3.7% less likely to be married in Rockford.
- The Median Age is 1.7 years younger in Rockford.
 Castaic, CARockford, MIUnited States
 Population  Unlock6,131329,725,481
 Female Population50.0%  Unlock50.5%
 Male Population50.0%  Unlock49.5%
 Median Age  Unlock36.538.4
 space3
 Population - 201018,134  Unlock309,327,143
 Population - 2000  Unlock4,626285,036,114
 Population - 19907,647  Unlock251,960,433
 Pop. 2000 to Now  Unlock38.2%15.6%
 Pop. 1990 to Now149.0%  Unlock30.8%
 space4
 Population Density  Unlock1,901.793.4
 Land Area7.3  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Castaic, CARockford, MIUnited States
 Age 0 to 46.5%  Unlock5.9%
 Age 5 to 9  Unlock7.7%6.1%
 Age 10 to 148.1%  Unlock6.6%
 Age 15 to 17  Unlock3.3%3.9%
 Age 18 to 203.0%  Unlock4.0%
 Age 21 to 24  Unlock4.1%5.2%
 Age 25 to 3413.4%  Unlock13.8%
 Age 35 to 44  Unlock13.6%12.9%
 Age 45 to 5415.2%  Unlock12.6%
 Age 55 to 59  Unlock4.6%6.7%
 Age 60 to 646.1%  Unlock6.3%
 Age 65 to 74  Unlock8.4%9.6%
 Age 75 to 842.5%  Unlock4.5%
 Age 85 and over  Unlock0.0%1.9%
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 Race
 Castaic, CARockford, MIUnited States
 White49.0%  Unlock59.4%
 Black  Unlock2.4%12.2%
 Asian11.9%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races7.3%  Unlock3.2%
 Hispanic  Unlock3.2%18.4%
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 Marriage & Family
 Castaic, CARockford, MIUnited States
 Married Population59.6%  Unlock49.8%
     Currently Married  Unlock55.4%48.0%
 Married but Separated1.2%  Unlock1.8%
 Single Population  Unlock42.6%50.2%
 Never Married28.3%  Unlock33.8%
 Divorced  Unlock15.1%10.8%
 Widowed5.1%  Unlock5.6%
 space5
 Household Size  Unlock2.402.60
 Households5,656  Unlock124,010,992
 Family Households  Unlock1,66480,755,759
     Married couple, w/children41.3%  Unlock30.5%
     Married couple, no children  Unlock45.4%42.9%
 Non Family Households929  Unlock43,255,233
     Single householder, w/children  Unlock13.7%15.8%
     Single householder, no children11.1%  Unlock10.8%
Reviews for Castaic    3 Reviews

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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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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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 Rockford    3 Reviews

Rockford is the ideal community for just outside of the Grand Rapids city. Outstanding schools, kind people, and a sweet downtown. There are beautiful neighborhoods  More

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Over 14 years ago

I've lived here for 15 years and love it. I have raised three children in the schools here and they are among the best in the state. All the schools are blue ribbon  More

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Over 19 years ago

I love living in Rockford, it's small, quiet and close to every thing you need (Grand Rapids). I am planning to move to Melbourne, Florida within the next couple months,  More

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