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2025 Compare Cities People:
Petaluma, CA vs Helena, MT

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Highlights
- Helena is 0% more densely populated than Petaluma.
- People are 20.9% less likely to be married in Helena.
- The Median Age is 2.9 years younger in Helena.
 Petaluma, CAHelena, MTUnited States
 Population  Unlock32,060329,725,481
 Female Population50.1%  Unlock50.5%
 Male Population49.9%  Unlock49.5%
 Median Age  Unlock39.938.4
 space3
 Population - 201058,048  Unlock309,327,143
 Population - 2000  Unlock25,780285,036,114
 Population - 199043,184  Unlock251,960,433
 Pop. 2000 to Now  Unlock30.9%15.6%
 Pop. 1990 to Now40.4%  Unlock30.8%
 space4
 Population Density  Unlock1,919.293.4
 Land Area14.4  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Petaluma, CAHelena, MTUnited States
 Age 0 to 45.0%  Unlock5.9%
 Age 5 to 9  Unlock5.2%6.1%
 Age 10 to 146.1%  Unlock6.6%
 Age 15 to 17  Unlock3.3%3.9%
 Age 18 to 203.1%  Unlock4.0%
 Age 21 to 24  Unlock6.0%5.2%
 Age 25 to 3412.7%  Unlock13.8%
 Age 35 to 44  Unlock13.5%12.9%
 Age 45 to 5413.5%  Unlock12.6%
 Age 55 to 59  Unlock6.3%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock11.5%9.6%
 Age 75 to 845.0%  Unlock4.5%
 Age 85 and over  Unlock2.5%1.9%
 space1
 Race
 Petaluma, CAHelena, MTUnited States
 White68.1%  Unlock59.4%
 Black  Unlock0.6%12.2%
 Asian4.1%  Unlock5.6%
 Native American  Unlock1.1%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races4.4%  Unlock3.2%
 Hispanic  Unlock5.0%18.4%
 space2
 Marriage & Family
 Petaluma, CAHelena, MTUnited States
 Married Population53.4%  Unlock49.8%
     Currently Married  Unlock41.4%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock57.8%50.2%
 Never Married30.0%  Unlock33.8%
 Divorced  Unlock18.4%10.8%
 Widowed5.0%  Unlock5.6%
 space5
 Household Size  Unlock2.032.60
 Households22,756  Unlock124,010,992
 Family Households  Unlock7,13880,755,759
     Married couple, w/children34.8%  Unlock30.5%
     Married couple, no children  Unlock45.9%42.9%
 Non Family Households7,697  Unlock43,255,233
     Single householder, w/children  Unlock17.7%15.8%
     Single householder, no children8.1%  Unlock10.8%
Voting
Reviews for Petaluma    16 Reviews
Chris · Petaluma, CA
Old hippies are in charge
Over 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 Helena    17 Reviews
Doug · Helena Valley West Central, MT
Nice safe mountain town. Little too quiet for me
Over 3 years ago

I spent 6 months living on a ranch in the Helena valley. This was during the population boom Montana experienced after covid. Helena has some great mountain biking  More

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Christine · Helena Valley West Central, MT
Best Decision Ever
Over 3 years ago

We transplanted from Southern California 3 years ago and have never looked back! Living in the small unincorporated town of York Montana located in the Helena nation  More

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Al 68 · Ogden, UT
Growing up in Helena
Over 5 years ago

I lived here for 16 years. It is a great place to grow  More

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Learn More About Petaluma, California
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Learn More About Helena, Montana
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