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2025 Compare Cities People:
Petaluma, CA vs Monrovia, CA

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Highlights
- Monrovia is 0% more densely populated than Petaluma.
- People are 14.8% less likely to be married in Monrovia.
- The Median Age is 3.7 years younger in Monrovia.
 Petaluma, CAMonrovia, CAUnited States
 Population  Unlock37,999329,725,481
 Female Population50.1%  Unlock50.5%
 Male Population49.9%  Unlock49.5%
 Median Age  Unlock39.138.4
 space3
 Population - 201058,048  Unlock309,327,143
 Population - 2000  Unlock36,929285,036,114
 Population - 199043,184  Unlock251,960,433
 Pop. 2000 to Now  Unlock2.3%15.6%
 Pop. 1990 to Now40.4%  Unlock30.8%
 space4
 Population Density  Unlock2,785.493.4
 Land Area14.4  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Petaluma, CAMonrovia, CAUnited States
 Age 0 to 45.0%  Unlock5.9%
 Age 5 to 9  Unlock6.2%6.1%
 Age 10 to 146.1%  Unlock6.6%
 Age 15 to 17  Unlock3.7%3.9%
 Age 18 to 203.1%  Unlock4.0%
 Age 21 to 24  Unlock4.6%5.2%
 Age 25 to 3412.7%  Unlock13.8%
 Age 35 to 44  Unlock15.5%12.9%
 Age 45 to 5413.5%  Unlock12.6%
 Age 55 to 59  Unlock7.9%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock8.1%9.6%
 Age 75 to 845.0%  Unlock4.5%
 Age 85 and over  Unlock1.6%1.9%
 space1
 Race
 Petaluma, CAMonrovia, CAUnited States
 White68.1%  Unlock59.4%
 Black  Unlock5.0%12.2%
 Asian4.1%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.5%0.4%
 Two or More Races4.4%  Unlock3.2%
 Hispanic  Unlock43.4%18.4%
 space2
 Marriage & Family
 Petaluma, CAMonrovia, CAUnited States
 Married Population53.4%  Unlock49.8%
     Currently Married  Unlock44.3%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock54.5%50.2%
 Never Married30.0%  Unlock33.8%
 Divorced  Unlock12.2%10.8%
 Widowed5.0%  Unlock5.6%
 space5
 Household Size  Unlock2.792.60
 Households22,756  Unlock124,010,992
 Family Households  Unlock8,92380,755,759
     Married couple, w/children34.8%  Unlock30.5%
     Married couple, no children  Unlock36.6%42.9%
 Non Family Households7,697  Unlock43,255,233
     Single householder, w/children  Unlock16.1%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 Monrovia    4 Reviews
Emily · Los Angeles, CA
Very Nice City
Over 16 years ago

It's like Mayberry RFD in a Los Angeles Suburb. I love it, we have all the conveniences, and in this older neighborhood, with many historic homes, it is not a place  More

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Dave · Monrovia, CA
Climate
Over 16 years ago

Best place to live in winters; hot in  More

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Marites · Monrovia, CA
Living in Monrovia,CA
Over 18 years ago

Monrovia is a nice little city with diverse culture and recreation, we have easy access to freeways and convenient public transportation. We are pretty much close to  More

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Learn More About Petaluma, California
Overview
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Learn More About Monrovia, California
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