2025 Compare Cities People:
Simi Valley, CA vs Spearfish, SD

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Highlights
- Spearfish is 0% more densely populated than Simi Valley.
- People are 16.0% less likely to be married in Spearfish.
- The Median Age is 4.2 years younger in Spearfish.
 Simi Valley, CASpearfish, SDUnited States
 Population  Unlock12,031329,725,481
 Female Population51.0%  Unlock50.5%
 Male Population49.1%  Unlock49.5%
 Median Age  Unlock36.838.4
 space3
 Population - 2010124,424  Unlock309,327,143
 Population - 2000  Unlock8,606285,036,114
 Population - 1990100,217  Unlock251,960,433
 Pop. 2000 to Now  Unlock38.3%15.6%
 Pop. 1990 to Now24.9%  Unlock30.8%
 space4
 Population Density  Unlock732.193.4
 Land Area41.5  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Simi Valley, CASpearfish, SDUnited States
 Age 0 to 45.2%  Unlock5.9%
 Age 5 to 9  Unlock3.7%6.1%
 Age 10 to 146.6%  Unlock6.6%
 Age 15 to 17  Unlock3.4%3.9%
 Age 18 to 203.8%  Unlock4.0%
 Age 21 to 24  Unlock8.3%5.2%
 Age 25 to 3413.3%  Unlock13.8%
 Age 35 to 44  Unlock10.7%12.9%
 Age 45 to 5414.8%  Unlock12.6%
 Age 55 to 59  Unlock3.9%6.7%
 Age 60 to 646.7%  Unlock6.3%
 Age 65 to 74  Unlock12.0%9.6%
 Age 75 to 844.5%  Unlock4.5%
 Age 85 and over  Unlock3.2%1.9%
 space1
 Race
 Simi Valley, CASpearfish, SDUnited States
 White57.6%  Unlock59.4%
 Black  Unlock0.7%12.2%
 Asian11.1%  Unlock5.6%
 Native American  Unlock3.0%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races3.8%  Unlock3.2%
 Hispanic  Unlock1.8%18.4%
 space2
 Marriage & Family
 Simi Valley, CASpearfish, SDUnited States
 Married Population50.5%  Unlock49.8%
     Currently Married  Unlock41.1%48.0%
 Married but Separated1.4%  Unlock1.8%
 Single Population  Unlock57.6%50.2%
 Never Married33.6%  Unlock33.8%
 Divorced  Unlock12.6%10.8%
 Widowed5.9%  Unlock5.6%
 space5
 Household Size  Unlock2.142.60
 Households43,893  Unlock124,010,992
 Family Households  Unlock2,40080,755,759
     Married couple, w/children32.3%  Unlock30.5%
     Married couple, no children  Unlock57.0%42.9%
 Non Family Households12,928  Unlock43,255,233
     Single householder, w/children  Unlock11.3%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 Spearfish    4 Reviews

I've been in the black Hills since 1994 and,recently moved to the east side of the state, Sioux Falls to be exact. Spearfish, is a very nice & beautiful community but,  More

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Over 18 years ago

The weather is perfect for outdoor  More

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Over 18 years ago

Spearfish is beautiful but there is very little job opportunity. As a result those people who want to advance in their career should avoid Spearfish. On the other hand  More

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