2026 Compare Cities People:
San Luis Obispo, CA vs Modesto, CA

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Highlights
- Modesto is 0% more densely populated than San Luis Obispo.
- People are 64.3% more likely to be married in Modesto.
- The Median Age is 8.9 years older in Modesto.
 San Luis Obispo, CAModesto, CAUnited States
 Population  Unlock217,728329,725,481
 Female Population49.1%  Unlock50.5%
 Male Population50.9%  Unlock49.5%
 Median Age  Unlock34.938.4
 space3
 Population - 201045,193  Unlock309,327,143
 Population - 2000  Unlock188,856285,036,114
 Population - 199041,958  Unlock251,960,433
 Pop. 2000 to Now  Unlock14.2%15.6%
 Pop. 1990 to Now13.4%  Unlock30.8%
 space4
 Population Density  Unlock5,066.293.4
 Land Area13.1  Unlock3,531,905.4
 Water Area  Unlock1.8264,836.8
 space
 Est. Total Population By Age
 San Luis Obispo, CAModesto, CAUnited States
 Age 0 to 43.1%  Unlock5.9%
 Age 5 to 9  Unlock7.3%6.1%
 Age 10 to 142.9%  Unlock6.6%
 Age 15 to 17  Unlock4.3%3.9%
 Age 18 to 2014.7%  Unlock4.0%
 Age 21 to 24  Unlock5.0%5.2%
 Age 25 to 3413.4%  Unlock13.8%
 Age 35 to 44  Unlock12.4%12.9%
 Age 45 to 547.5%  Unlock12.6%
 Age 55 to 59  Unlock6.3%6.7%
 Age 60 to 645.5%  Unlock6.3%
 Age 65 to 74  Unlock8.5%9.6%
 Age 75 to 843.7%  Unlock4.5%
 Age 85 and over  Unlock1.5%1.9%
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 Race
 San Luis Obispo, CAModesto, CAUnited States
 White70.7%  Unlock59.4%
 Black  Unlock4.3%12.2%
 Asian4.8%  Unlock5.6%
 Native American  Unlock0.7%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.2%0.4%
 Two or More Races3.9%  Unlock3.2%
 Hispanic  Unlock42.0%18.4%
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 Marriage & Family
 San Luis Obispo, CAModesto, CAUnited States
 Married Population28.8%  Unlock49.8%
     Currently Married  Unlock45.2%48.0%
 Married but Separated0.9%  Unlock1.8%
 Single Population  Unlock52.7%50.2%
 Never Married59.0%  Unlock33.8%
 Divorced  Unlock11.0%10.8%
 Widowed3.9%  Unlock5.6%
 space5
 Household Size  Unlock2.992.60
 Households19,035  Unlock124,010,992
 Family Households  Unlock51,51080,755,759
     Married couple, w/children23.1%  Unlock30.5%
     Married couple, no children  Unlock34.5%42.9%
 Non Family Households11,342  Unlock43,255,233
     Single householder, w/children  Unlock19.9%15.8%
     Single householder, no children15.3%  Unlock10.8%
Reviews for San Luis Obispo    21 Reviews

MY FIANCEE AND I ARE LOOKING TO MOVE TO SLO FOR RETIREMENT ( NEXT MONTH ) WE ARE BOTH ARTISTS AND HOPE OUR TALENT WILL HELP WITH COST OF LIVING IN SLO!!! ANY  More

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Over 11 years ago

In almost any season of the year in San Luis Obispo, you’ll find the sun shining and the temperature hitting around 70º at some point in the day. With the temperature  More

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San Luis Obispo and surrounding areas are beautiful, great weather, beaches, farms markets, a downtown area full of some of the best bars and restaurants, wine country,  More

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Reviews for Modesto    35 Reviews

Over 5 years ago

I was born and raised here (still currently live here) and there are some nice areas and not so nice areas. I really think we need to improve our community and create  More

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Over 5 years ago

It's fine. Lived here for over 10 years. Here's my breakdown. CONS: Crime rate: mostly on the westside, unless you live in better developed areas. Summer weather:  More

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I know this website is probably only for adults, which I am not, but I thought perhaps adults would like to hear a kid's perspective of things, you know, if any adult  More

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