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2025 Compare Cities People:
Petaluma, CA vs Sammamish, WA

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Highlights
- Sammamish is 0% more densely populated than Petaluma.
- People are 32.4% more likely to be married in Sammamish.
- The Median Age is 3.6 years younger in Sammamish.
 Petaluma, CASammamish, WAUnited States
 Population  Unlock66,532329,725,481
 Female Population50.1%  Unlock50.5%
 Male Population49.9%  Unlock49.5%
 Median Age  Unlock39.238.4
 space3
 Population - 201058,048  Unlock309,327,143
 Population - 2000  Unlock34,104285,036,114
 Population - 199043,184  Unlock251,960,433
 Pop. 2000 to Now  Unlock93.4%15.6%
 Pop. 1990 to Now40.4%  Unlock30.8%
 space4
 Population Density  Unlock3,255.593.4
 Land Area14.4  Unlock3,531,905.4
 Water Area  Unlock3.7264,836.8
 space
 Est. Total Population By Age
 Petaluma, CASammamish, WAUnited States
 Age 0 to 45.0%  Unlock5.9%
 Age 5 to 9  Unlock7.3%6.1%
 Age 10 to 146.1%  Unlock6.6%
 Age 15 to 17  Unlock6.3%3.9%
 Age 18 to 203.1%  Unlock4.0%
 Age 21 to 24  Unlock2.9%5.2%
 Age 25 to 3412.7%  Unlock13.8%
 Age 35 to 44  Unlock18.2%12.9%
 Age 45 to 5413.5%  Unlock12.6%
 Age 55 to 59  Unlock6.5%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock5.6%9.6%
 Age 75 to 845.0%  Unlock4.5%
 Age 85 and over  Unlock0.5%1.9%
 space1
 Race
 Petaluma, CASammamish, WAUnited States
 White68.1%  Unlock59.4%
 Black  Unlock1.6%12.2%
 Asian4.1%  Unlock5.6%
 Native American  Unlock0.3%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races4.4%  Unlock3.2%
 Hispanic  Unlock3.5%18.4%
 space2
 Marriage & Family
 Petaluma, CASammamish, WAUnited States
 Married Population53.4%  Unlock49.8%
     Currently Married  Unlock70.0%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock29.3%50.2%
 Never Married30.0%  Unlock33.8%
 Divorced  Unlock4.8%10.8%
 Widowed5.0%  Unlock5.6%
 space5
 Household Size  Unlock3.032.60
 Households22,756  Unlock124,010,992
 Family Households  Unlock19,13880,755,759
     Married couple, w/children34.8%  Unlock30.5%
     Married couple, no children  Unlock34.7%42.9%
 Non Family Households7,697  Unlock43,255,233
     Single householder, w/children  Unlock7.1%15.8%
     Single householder, no children8.1%  Unlock10.8%
Voting
Reviews for Petaluma    16 Reviews
Chris · Petaluma, CA
Old hippies are in charge
Over 4 years ago

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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O · Petaluma, CA
A great place to call home, if you can afford it
Over 4 years ago

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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Ima · Petaluma, CA
California living at its finest!
Over 4 years ago

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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Reviews for Sammamish    4 Reviews
Paula · Sammamish, WA
Soggy in Seattle
Over 10 years ago

Seattle has beautiful greenery and gorgeous mountain views. It is quite dark and gloomy for much of the late fall into spring...or July 5th as locals know quite well. I  More

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Loren · Sammamish, WA
Seems expensive, but worth it
Over 11 years ago

Housing seems to be very overpriced, however after all things considered, it is well worth it. (Family of  More

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Noelle · Sammamish, WA
Sammamish is an all-around great place to live!
Over 13 years ago

Sammamish is honestly a wonderful place to live. It's perfect for a family who wants a comfortable entertaining suburban life. The schools are pretty great, as I can say  More

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Learn More About Petaluma, California
Overview
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Learn More About Sammamish, Washington
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