2026 Compare Cities People:
Indianapolis, IN vs San Mateo, CA

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Highlights
- San Mateo is 0% more densely populated than Indianapolis.
- People are 28.0% more likely to be married in San Mateo.
- The Median Age is 3.4 years older in San Mateo.
 Indianapolis, INSan Mateo, CAUnited States
 Population  Unlock105,087329,725,481
 Female Population51.5%  Unlock50.5%
 Male Population48.5%  Unlock49.5%
 Median Age  Unlock37.738.4
 space3
 Population - 2010821,576  Unlock309,327,143
 Population - 2000  Unlock92,482285,036,114
 Population - 1990754,005  Unlock251,960,433
 Pop. 2000 to Now  Unlock10.7%15.6%
 Pop. 1990 to Now16.4%  Unlock30.8%
 space4
 Population Density  Unlock8,632.893.4
 Land Area361.6  Unlock3,531,905.4
 Water Area  Unlock3.7264,836.8
 space
 Est. Total Population By Age
 Indianapolis, INSan Mateo, CAUnited States
 Age 0 to 47.1%  Unlock5.9%
 Age 5 to 9  Unlock5.6%6.1%
 Age 10 to 146.9%  Unlock6.6%
 Age 15 to 17  Unlock2.7%3.9%
 Age 18 to 203.9%  Unlock4.0%
 Age 21 to 24  Unlock4.1%5.2%
 Age 25 to 3416.8%  Unlock13.8%
 Age 35 to 44  Unlock15.4%12.9%
 Age 45 to 5411.6%  Unlock12.6%
 Age 55 to 59  Unlock5.8%6.7%
 Age 60 to 645.8%  Unlock6.3%
 Age 65 to 74  Unlock8.0%9.6%
 Age 75 to 843.3%  Unlock4.5%
 Age 85 and over  Unlock2.8%1.9%
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 Race
 Indianapolis, INSan Mateo, CAUnited States
 White52.7%  Unlock59.4%
 Black  Unlock1.9%12.2%
 Asian3.8%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.6%0.4%
 Two or More Races3.7%  Unlock3.2%
 Hispanic  Unlock24.1%18.4%
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 Marriage & Family
 Indianapolis, INSan Mateo, CAUnited States
 Married Population41.1%  Unlock49.8%
     Currently Married  Unlock51.3%48.0%
 Married but Separated1.7%  Unlock1.8%
 Single Population  Unlock47.4%50.2%
 Never Married41.8%  Unlock33.8%
 Divorced  Unlock8.9%10.8%
 Widowed4.8%  Unlock5.6%
 space5
 Household Size  Unlock2.582.60
 Households352,238  Unlock124,010,992
 Family Households  Unlock25,42080,755,759
     Married couple, w/children26.6%  Unlock30.5%
     Married couple, no children  Unlock43.3%42.9%
 Non Family Households158,992  Unlock43,255,233
     Single householder, w/children  Unlock10.4%15.8%
     Single householder, no children12.4%  Unlock10.8%
Reviews for Indianapolis    154 Reviews

I lived in Indianapolis for over 23 years, and I really miss the laidback: easy lifestyle there. The prices of most items are lower than elsewhere in the US, including  More

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No car? This city is built for cars. Not friendly to pedestrians; the lack of sidewalks is confounding. Public transportation is limited, with a "spoke wheel" layout  More

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Over 5 years ago

This is a response to another review, but everything I say here is true and I have been a lifelong Indy resident and feel this needs said. The only factual part is  More

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Reviews for San Mateo    12 Reviews

I have lived in San Mateo since 2013. It has seen tremendous growth, lots of new restaurants which have become progressively more high-end though there is ample  More

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I'm a native of California. I have lived in the southern part of the state and the northern part of the state for most of my life. I have spent the last 29 years in  More

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Over 16 years ago

San Mateo has a diverse mix of people, a pleasant climate, a very pleasant downtown park with lots going on, and pretty much whatever you need handy. It's not far to  More

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