2025 Compare Cities People:
Simi Valley, CA vs Riverside, CA

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Highlights
- Riverside is 0% more densely populated than Simi Valley.
- People are 12.0% less likely to be married in Riverside.
- The Median Age is 9.1 years younger in Riverside.
 Simi Valley, CARiverside, CAUnited States
 Population  Unlock314,858329,725,481
 Female Population51.0%  Unlock50.5%
 Male Population49.1%  Unlock49.5%
 Median Age  Unlock31.938.4
 space3
 Population - 2010124,424  Unlock309,327,143
 Population - 2000  Unlock255,166285,036,114
 Population - 1990100,217  Unlock251,960,433
 Pop. 2000 to Now  Unlock29.6%15.6%
 Pop. 1990 to Now24.9%  Unlock30.8%
 space4
 Population Density  Unlock3,875.093.4
 Land Area41.5  Unlock3,531,905.4
 Water Area  Unlock0.3264,836.8
 space
 Est. Total Population By Age
 Simi Valley, CARiverside, CAUnited States
 Age 0 to 45.2%  Unlock5.9%
 Age 5 to 9  Unlock6.2%6.1%
 Age 10 to 146.6%  Unlock6.6%
 Age 15 to 17  Unlock4.4%3.9%
 Age 18 to 203.8%  Unlock4.0%
 Age 21 to 24  Unlock7.1%5.2%
 Age 25 to 3413.3%  Unlock13.8%
 Age 35 to 44  Unlock13.4%12.9%
 Age 45 to 5414.8%  Unlock12.6%
 Age 55 to 59  Unlock5.3%6.7%
 Age 60 to 646.7%  Unlock6.3%
 Age 65 to 74  Unlock6.6%9.6%
 Age 75 to 844.5%  Unlock4.5%
 Age 85 and over  Unlock1.2%1.9%
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 Race
 Simi Valley, CARiverside, CAUnited States
 White57.6%  Unlock59.4%
 Black  Unlock5.4%12.2%
 Asian11.1%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races3.8%  Unlock3.2%
 Hispanic  Unlock54.9%18.4%
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 Marriage & Family
 Simi Valley, CARiverside, CAUnited States
 Married Population50.5%  Unlock49.8%
     Currently Married  Unlock42.3%48.0%
 Married but Separated1.4%  Unlock1.8%
 Single Population  Unlock55.6%50.2%
 Never Married33.6%  Unlock33.8%
 Divorced  Unlock8.4%10.8%
 Widowed5.9%  Unlock5.6%
 space5
 Household Size  Unlock3.382.60
 Households43,893  Unlock124,010,992
 Family Households  Unlock65,02080,755,759
     Married couple, w/children32.3%  Unlock30.5%
     Married couple, no children  Unlock32.9%42.9%
 Non Family Households12,928  Unlock43,255,233
     Single householder, w/children  Unlock17.7%15.8%
     Single householder, no children12.8%  Unlock10.8%
Reviews for Simi Valley    22 Reviews

I've live in two different neighborhoods since fall of 1996 and depending on the neighborhood you're quality of life experience will vary. The price of housing is such  More

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Over 15 years ago

I have lived in Simi Valley for 23 Years. I love it here but due to the cost of living am looking to relocate to another state/City where my money will go further. Simi  More

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Over 16 years ago

simi valley is a very nice place to live within the shadow of the LA metro area. it has low crime and reasonable housing costs with ready access to indoor and outdoor  More

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Reviews for Riverside    42 Reviews

I've lived in Riverside for 54 years. It changed a LOT when people from LA started moving here in droves. Still, I have never been robbed or assaulted but I am  More

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I'm from Orange County (OC). I have had nothing but trouble since moving to Riverside. 1. The dogs are aggressive guard dogs. If you want to walk or bike you  More

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Over 7 years ago

Whew where to begin with dear old riverside. I enjoyed growing up here until my high school years (back in 2011). In 7 short years the downward deterioration of the  More

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