2025 Compare Cities People:
Santa Clara, CA vs Petaluma, CA

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Highlights
- Petaluma is 0% more densely populated than Santa Clara.
- People are 0.1% more likely to be married in Petaluma.
- The Median Age is 8.8 years older in Petaluma.
 Santa Clara, CAPetaluma, CAUnited States
 Population  Unlock60,050329,725,481
 Female Population47.8%  Unlock50.5%
 Male Population52.2%  Unlock49.5%
 Median Age  Unlock42.838.4
 space3
 Population - 2010116,857  Unlock309,327,143
 Population - 2000  Unlock54,548285,036,114
 Population - 199093,613  Unlock251,960,433
 Pop. 2000 to Now  Unlock11.2%15.6%
 Pop. 1990 to Now40.0%  Unlock30.8%
 space4
 Population Density  Unlock4,175.493.4
 Land Area18.4  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Santa Clara, CAPetaluma, CAUnited States
 Age 0 to 46.6%  Unlock5.9%
 Age 5 to 9  Unlock5.5%6.1%
 Age 10 to 144.2%  Unlock6.6%
 Age 15 to 17  Unlock4.0%3.9%
 Age 18 to 204.8%  Unlock4.0%
 Age 21 to 24  Unlock3.0%5.2%
 Age 25 to 3422.4%  Unlock13.8%
 Age 35 to 44  Unlock13.7%12.9%
 Age 45 to 5411.6%  Unlock12.6%
 Age 55 to 59  Unlock7.4%6.7%
 Age 60 to 644.5%  Unlock6.3%
 Age 65 to 74  Unlock11.1%9.6%
 Age 75 to 843.4%  Unlock4.5%
 Age 85 and over  Unlock2.6%1.9%
 space1
 Race
 Santa Clara, CAPetaluma, CAUnited States
 White30.2%  Unlock59.4%
 Black  Unlock1.3%12.2%
 Asian45.7%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.7%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races4.3%  Unlock3.2%
 Hispanic  Unlock21.6%18.4%
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 Marriage & Family
 Santa Clara, CAPetaluma, CAUnited States
 Married Population53.3%  Unlock49.8%
     Currently Married  Unlock51.8%48.0%
 Married but Separated1.6%  Unlock1.8%
 Single Population  Unlock46.6%50.2%
 Never Married37.0%  Unlock33.8%
 Divorced  Unlock11.6%10.8%
 Widowed3.2%  Unlock5.6%
 space5
 Household Size  Unlock2.612.60
 Households45,830  Unlock124,010,992
 Family Households  Unlock15,05980,755,759
     Married couple, w/children38.7%  Unlock30.5%
     Married couple, no children  Unlock45.5%42.9%
 Non Family Households15,775  Unlock43,255,233
     Single householder, w/children  Unlock11.6%15.8%
     Single householder, no children11.0%  Unlock10.8%
Reviews for Santa Clara    14 Reviews

Larry · 

Santa Clara, CA and the city government are great. The city has been for the most part very good to me. I grew up in Santa Clara and now that I have been away for two  More

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I have lived in Santa Clara California most of my life so I consider myself to be an expert. The climate is wonderful. The price of housing is way above the national  More

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Over 10 years ago

Good Central Park and activities; City-owned power company provides lower cost power; home to many high-tech companies; city is  More

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Reviews for Petaluma    16 Reviews

I agree with the low star reviews. Been here for 25 years, raised a family and seen everything turn to the left and worse. Weather is glorious, love the old Victorians  More

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We’ve lived here for 3 years and we love it. It has taken some time to grow on us. We moved from SF where we had lived over 15 years, we were not used to one year leases  More

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I’ve lived here a couple of years (after living in others parts of the Bay Area for 15+ years) and I love it! Great neighborhoods, friendly folks, good schools with  More

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