2025 Compare Cities People:
San Marcos, TX vs Naperville, IL

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Highlights
- Naperville is 0% more densely populated than San Marcos.
- People are 122.4% more likely to be married in Naperville.
- The Median Age is 14.4 years older in Naperville.
 San Marcos, TXNaperville, ILUnited States
 Population  Unlock149,013329,725,481
 Female Population52.5%  Unlock50.5%
 Male Population47.5%  Unlock49.5%
 Median Age  Unlock39.338.4
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 Population - 201045,258  Unlock309,327,143
 Population - 2000  Unlock128,358285,036,114
 Population - 199028,743  Unlock251,960,433
 Pop. 2000 to Now  Unlock15.3%15.6%
 Pop. 1990 to Now130.8%  Unlock30.8%
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 Population Density  Unlock3,839.693.4
 Land Area34.0  Unlock3,531,905.4
 Water Area  Unlock0.6264,836.8
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 Est. Total Population By Age
 San Marcos, TXNaperville, ILUnited States
 Age 0 to 43.7%  Unlock5.9%
 Age 5 to 9  Unlock6.5%6.1%
 Age 10 to 143.6%  Unlock6.6%
 Age 15 to 17  Unlock4.9%3.9%
 Age 18 to 2016.9%  Unlock4.0%
 Age 21 to 24  Unlock4.2%5.2%
 Age 25 to 3417.3%  Unlock13.8%
 Age 35 to 44  Unlock14.2%12.9%
 Age 45 to 546.6%  Unlock12.6%
 Age 55 to 59  Unlock7.6%6.7%
 Age 60 to 643.6%  Unlock6.3%
 Age 65 to 74  Unlock8.3%9.6%
 Age 75 to 841.9%  Unlock4.5%
 Age 85 and over  Unlock1.5%1.9%
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 Race
 San Marcos, TXNaperville, ILUnited States
 White45.2%  Unlock59.4%
 Black  Unlock4.3%12.2%
 Asian2.5%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races3.1%  Unlock3.2%
 Hispanic  Unlock6.5%18.4%
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 Marriage & Family
 San Marcos, TXNaperville, ILUnited States
 Married Population27.8%  Unlock49.8%
     Currently Married  Unlock60.9%48.0%
 Married but Separated1.6%  Unlock1.8%
 Single Population  Unlock38.2%50.2%
 Never Married61.2%  Unlock33.8%
 Divorced  Unlock7.0%10.8%
 Widowed2.8%  Unlock5.6%
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 Household Size  Unlock2.752.60
 Households25,732  Unlock124,010,992
 Family Households  Unlock39,81580,755,759
     Married couple, w/children21.9%  Unlock30.5%
     Married couple, no children  Unlock43.9%42.9%
 Non Family Households14,680  Unlock43,255,233
     Single householder, w/children  Unlock8.4%15.8%
     Single householder, no children20.6%  Unlock10.8%
Reviews for San Marcos    6 Reviews

An area with so much potential and existing natural beauty.Sadly bad urban planning is clearly obvious.Looks like fun for tens of thousands of students.However for the  More

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Over 16 years ago

San Marcos has the most beautiful people and places that I have ever seen throughout my travels. I love this city so much that I decided to settle down here and start a  More

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Over 17 years ago

I spent several summers and a couple winters in San Marcos during my formidable years and really have to tell those interested about what a nice town it is. The best  More

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Reviews for Naperville    26 Reviews

Naperville has a lot to offer. The schools are top notch, it is close to Chicago with a commuter rail that is easily accessible and fast, there are lots of parks and  More

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Over 3 years ago

Lived around the area my whole life, moved to the downtown Naperville 7 years ago and wow has it changed and not for the better. There is way too much traffic and no  More

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Over 7 years ago

Went with my real estate agent to check out a few houses in Naperville.First impression was the town was adorable especially the downtown but way too many people.couldnt  More

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