2025 Compare Cities People:
Plainfield, NJ vs San Luis Obispo, CA

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Highlights
- San Luis Obispo is 0% more densely populated than Plainfield.
- People are 25.6% less likely to be married in San Luis Obispo.
- The Median Age is 8.1 years younger in San Luis Obispo.
 Plainfield, NJSan Luis Obispo, CAUnited States
 Population  Unlock47,257329,725,481
 Female Population47.6%  Unlock50.5%
 Male Population52.4%  Unlock49.5%
 Median Age  Unlock2638.4
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 Population - 201049,622  Unlock309,327,143
 Population - 2000  Unlock44,174285,036,114
 Population - 199046,567  Unlock251,960,433
 Pop. 2000 to Now  Unlock7.7%15.6%
 Pop. 1990 to Now7.4%  Unlock30.8%
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 Population Density  Unlock3,597.893.4
 Land Area6.0  Unlock3,531,905.4
 Water Area  Unlock0.2264,836.8
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 Est. Total Population By Age
 Plainfield, NJSan Luis Obispo, CAUnited States
 Age 0 to 47.2%  Unlock5.9%
 Age 5 to 9  Unlock3.1%6.1%
 Age 10 to 147.5%  Unlock6.6%
 Age 15 to 17  Unlock1.9%3.9%
 Age 18 to 203.5%  Unlock4.0%
 Age 21 to 24  Unlock22.3%5.2%
 Age 25 to 3415.5%  Unlock13.8%
 Age 35 to 44  Unlock8.4%12.9%
 Age 45 to 5412.9%  Unlock12.6%
 Age 55 to 59  Unlock4.1%6.7%
 Age 60 to 645.1%  Unlock6.3%
 Age 65 to 74  Unlock7.8%9.6%
 Age 75 to 842.9%  Unlock4.5%
 Age 85 and over  Unlock1.8%1.9%
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 Race
 Plainfield, NJSan Luis Obispo, CAUnited States
 White8.8%  Unlock59.4%
 Black  Unlock1.6%12.2%
 Asian1.0%  Unlock5.6%
 Native American  Unlock0.3%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races1.5%  Unlock3.2%
 Hispanic  Unlock18.5%18.4%
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 Marriage & Family
 Plainfield, NJSan Luis Obispo, CAUnited States
 Married Population38.7%  Unlock49.8%
     Currently Married  Unlock27.9%48.0%
 Married but Separated2.1%  Unlock1.8%
 Single Population  Unlock71.2%50.2%
 Never Married50.2%  Unlock33.8%
 Divorced  Unlock8.3%10.8%
 Widowed3.9%  Unlock5.6%
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 Household Size  Unlock2.412.60
 Households16,693  Unlock124,010,992
 Family Households  Unlock7,69380,755,759
     Married couple, w/children27.6%  Unlock30.5%
     Married couple, no children  Unlock49.4%42.9%
 Non Family Households4,617  Unlock43,255,233
     Single householder, w/children  Unlock12.1%15.8%
     Single householder, no children16.1%  Unlock10.8%
Reviews for Plainfield    4 Reviews

Over 17 years ago

This city is not as bad as your Newark or Trenton, although it does have it's problems, murder rate is up in 08, and the primary gangs around town are the Bloods and  More

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Over 18 years ago

Just like anywhere else,there are good and bad areas in Plainfield. I would be careful on the West End, however the East end has beautiful homes that are in the millions  More

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Over 19 years ago

I and my wife moved here about 1.5 yrs ago. We are both professionals, and while we realize that Plainfield has its problems, it is not the cesspool so many think it is.  More

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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 10 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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