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2026 Compare Cities People:
Petaluma, CA vs Happy Valley, OR

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Highlights
- Happy Valley is 0% more densely populated than Petaluma.
- People are 9.2% more likely to be married in Happy Valley.
- The Median Age is 3.8 years younger in Happy Valley.
 Petaluma, CAHappy Valley, ORUnited States
 Population  Unlock23,442329,725,481
 Female Population50.1%  Unlock50.5%
 Male Population49.9%  Unlock49.5%
 Median Age  Unlock3938.4
 space3
 Population - 201058,048  Unlock309,327,143
 Population - 2000  Unlock4,519285,036,114
 Population - 199043,184  Unlock251,960,433
 Pop. 2000 to Now  Unlock426.2%15.6%
 Pop. 1990 to Now40.4%  Unlock30.8%
 space4
 Population Density  Unlock2,641.193.4
 Land Area14.4  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Petaluma, CAHappy Valley, ORUnited States
 Age 0 to 45.0%  Unlock5.9%
 Age 5 to 9  Unlock9.2%6.1%
 Age 10 to 146.1%  Unlock6.6%
 Age 15 to 17  Unlock5.4%3.9%
 Age 18 to 203.1%  Unlock4.0%
 Age 21 to 24  Unlock3.7%5.2%
 Age 25 to 3412.7%  Unlock13.8%
 Age 35 to 44  Unlock15.9%12.9%
 Age 45 to 5413.5%  Unlock12.6%
 Age 55 to 59  Unlock5.2%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock7.7%9.6%
 Age 75 to 845.0%  Unlock4.5%
 Age 85 and over  Unlock2.3%1.9%
 space1
 Race
 Petaluma, CAHappy Valley, ORUnited States
 White68.1%  Unlock59.4%
 Black  Unlock0.9%12.2%
 Asian4.1%  Unlock5.6%
 Native American  Unlock0.4%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock1.6%0.4%
 Two or More Races4.4%  Unlock3.2%
 Hispanic  Unlock6.4%18.4%
 space2
 Marriage & Family
 Petaluma, CAHappy Valley, ORUnited States
 Married Population53.4%  Unlock49.8%
     Currently Married  Unlock58.0%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock41.7%50.2%
 Never Married30.0%  Unlock33.8%
 Divorced  Unlock8.7%10.8%
 Widowed5.0%  Unlock5.6%
 space5
 Household Size  Unlock3.152.60
 Households22,756  Unlock124,010,992
 Family Households  Unlock5,97880,755,759
     Married couple, w/children34.8%  Unlock30.5%
     Married couple, no children  Unlock42.0%42.9%
 Non Family Households7,697  Unlock43,255,233
     Single householder, w/children  Unlock12.7%15.8%
     Single householder, no children8.1%  Unlock10.8%
Voting
Reviews for Petaluma    16 Reviews
Chris · Petaluma, CA
Old hippies are in charge
Over 5 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 5 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 5 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 Happy Valley    4 Reviews
Sao · Happy Valley, OR
Nice Place To Live
Over 15 years ago

Happy Valley, OR is a great place to live. Just east of Portland its on a hill where you could see the beautiful city(Portland) in the valley. All the beautiful lights  More

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RH · Damascus, OR
Nice place to live
Over 15 years ago

Left NYC and moved straight to Portland 5 years ago. I'm in early 40s with kids and wife and they love it here  More

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Corina · Damascus, OR
Damascus
Over 16 years ago

Damascus is a quiet community just East of Portland. We are close to Gresham, Clackamas, and Boring/Sandy. There is farm land out this way, nice friendly people and the  More

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Learn More About Petaluma, California
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Learn More About Happy Valley, Oregon
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