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

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Highlights
- Irvine is 0% more densely populated than Petaluma.
- People are 3.7% less likely to be married in Irvine.
- The Median Age is 9.0 years younger in Irvine.
 Petaluma, CAIrvine, CAUnited States
 Population  Unlock297,868329,725,481
 Female Population50.1%  Unlock50.5%
 Male Population49.9%  Unlock49.5%
 Median Age  Unlock33.838.4
 space3
 Population - 201058,048  Unlock309,327,143
 Population - 2000  Unlock143,072285,036,114
 Population - 199043,184  Unlock251,960,433
 Pop. 2000 to Now  Unlock98.3%15.6%
 Pop. 1990 to Now40.4%  Unlock30.8%
 space4
 Population Density  Unlock4,541.993.4
 Land Area14.4  Unlock3,531,905.4
 Water Area  Unlock0.3264,836.8
 space
 Est. Total Population By Age
 Petaluma, CAIrvine, CAUnited States
 Age 0 to 45.0%  Unlock5.9%
 Age 5 to 9  Unlock5.7%6.1%
 Age 10 to 146.1%  Unlock6.6%
 Age 15 to 17  Unlock3.8%3.9%
 Age 18 to 203.1%  Unlock4.0%
 Age 21 to 24  Unlock6.2%5.2%
 Age 25 to 3412.7%  Unlock13.8%
 Age 35 to 44  Unlock14.5%12.9%
 Age 45 to 5413.5%  Unlock12.6%
 Age 55 to 59  Unlock5.5%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock6.1%9.6%
 Age 75 to 845.0%  Unlock4.5%
 Age 85 and over  Unlock1.2%1.9%
 space1
 Race
 Petaluma, CAIrvine, CAUnited States
 White68.1%  Unlock59.4%
 Black  Unlock1.7%12.2%
 Asian4.1%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races4.4%  Unlock3.2%
 Hispanic  Unlock11.9%18.4%
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 Marriage & Family
 Petaluma, CAIrvine, CAUnited States
 Married Population53.4%  Unlock49.8%
     Currently Married  Unlock50.3%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock48.6%50.2%
 Never Married30.0%  Unlock33.8%
 Divorced  Unlock7.5%10.8%
 Widowed5.0%  Unlock5.6%
 space5
 Household Size  Unlock2.702.60
 Households22,756  Unlock124,010,992
 Family Households  Unlock69,18180,755,759
     Married couple, w/children34.8%  Unlock30.5%
     Married couple, no children  Unlock37.7%42.9%
 Non Family Households7,697  Unlock43,255,233
     Single householder, w/children  Unlock9.8%15.8%
     Single householder, no children8.1%  Unlock10.8%
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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Reviews for Irvine    42 Reviews

We've lived in Irvine since '87. We have raised two children within the ISUD. Both are grown up. Sure, there have been many changes since then.. the City has  More

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I've lived in Irvine for 2 years and in Orange County for 10 so I'm pretty familiar with the area by now and all it has to offer. Perhaps my review of this place has  More

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I wouldn't live elsewhere. I originally moved to Irvine in 2002 from the Midwest, not knowing what it even was. I left and moved around a great deal locally in OC,  More

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