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

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Highlights
- Fullerton is 0% more densely populated than San Luis Obispo.
- People are 76.5% more likely to be married in Fullerton.
- The Median Age is 9.4 years older in Fullerton.
 San Luis Obispo, CAFullerton, CAUnited States
 Population  Unlock142,964329,725,481
 Female Population49.1%  Unlock50.5%
 Male Population50.9%  Unlock49.5%
 Median Age  Unlock35.438.4
 space3
 Population - 201045,193  Unlock309,327,143
 Population - 2000  Unlock126,003285,036,114
 Population - 199041,958  Unlock251,960,433
 Pop. 2000 to Now  Unlock11.1%15.6%
 Pop. 1990 to Now13.4%  Unlock30.8%
 space4
 Population Density  Unlock6,372.993.4
 Land Area13.1  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 San Luis Obispo, CAFullerton, CAUnited States
 Age 0 to 43.1%  Unlock5.9%
 Age 5 to 9  Unlock5.9%6.1%
 Age 10 to 142.9%  Unlock6.6%
 Age 15 to 17  Unlock3.4%3.9%
 Age 18 to 2014.7%  Unlock4.0%
 Age 21 to 24  Unlock6.1%5.2%
 Age 25 to 3413.4%  Unlock13.8%
 Age 35 to 44  Unlock11.8%12.9%
 Age 45 to 547.5%  Unlock12.6%
 Age 55 to 59  Unlock6.5%6.7%
 Age 60 to 645.5%  Unlock6.3%
 Age 65 to 74  Unlock7.0%9.6%
 Age 75 to 843.7%  Unlock4.5%
 Age 85 and over  Unlock2.1%1.9%
 space1
 Race
 San Luis Obispo, CAFullerton, CAUnited States
 White70.7%  Unlock59.4%
 Black  Unlock2.1%12.2%
 Asian4.8%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races3.9%  Unlock3.2%
 Hispanic  Unlock38.3%18.4%
 space2
 Marriage & Family
 San Luis Obispo, CAFullerton, CAUnited States
 Married Population28.8%  Unlock49.8%
     Currently Married  Unlock49.4%48.0%
 Married but Separated0.9%  Unlock1.8%
 Single Population  Unlock49.2%50.2%
 Never Married59.0%  Unlock33.8%
 Divorced  Unlock7.4%10.8%
 Widowed3.9%  Unlock5.6%
 space5
 Household Size  Unlock3.012.60
 Households19,035  Unlock124,010,992
 Family Households  Unlock33,02280,755,759
     Married couple, w/children23.1%  Unlock30.5%
     Married couple, no children  Unlock43.1%42.9%
 Non Family Households11,342  Unlock43,255,233
     Single householder, w/children  Unlock12.6%15.8%
     Single householder, no children15.3%  Unlock10.8%
Voting
Reviews for San Luis Obispo    21 Reviews
Bruce · Las Vegas, NV
COST OF LIVING AND FINDING A PLACE TO LIVE
Over 11 years ago

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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Tim · San Luis Obispo, CA
Sunny & 70º
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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Sadie · San Luis Obispo, CA
Beautiful place to live hard to find a room
Over 13 years ago

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 Fullerton    13 Reviews
j · Fullerton, CA
love it
Over 5 years ago

ive lived in this city for a very long time, and it is a great and quiet place to live, with some nice shopping areas and great  More

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David · 
Fullerton: Good food, good music but bad roads.
Over 7 years ago

I have been living and working in Fullerton for almost 20 years now and have seen it change through the years, both for the better and worse. Fullerton is a half  More

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Ashley · Fullerton, CA
Beautiful!
Over 10 years ago

The weather here is gorgeous! Warm and rarely rains.  More

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Learn More About San Luis Obispo, California
Overview
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Learn More About Fullerton, California
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