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2026 Compare Cities People:
St. Louis, MO vs Des Plaines, IL

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Highlights
- Des Plaines is 0% more densely populated than St. Louis.
- People are 61.3% more likely to be married in Des Plaines.
- The Median Age is 6.0 years older in Des Plaines.
 St. Louis, MODes Plaines, ILUnited States
 Population  Unlock60,413329,725,481
 Female Population51.3%  Unlock50.5%
 Male Population48.7%  Unlock49.5%
 Median Age  Unlock42.338.4
 space3
 Population - 2010319,367  Unlock309,327,143
 Population - 2000  Unlock58,720285,036,114
 Population - 1990396,685  Unlock251,960,433
 Pop. 2000 to Now  Unlock-0.9%15.6%
 Pop. 1990 to Now-25.0%  Unlock30.8%
 space4
 Population Density  Unlock4,211.793.4
 Land Area61.7  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 St. Louis, MODes Plaines, ILUnited States
 Age 0 to 46.1%  Unlock5.9%
 Age 5 to 9  Unlock5.6%6.1%
 Age 10 to 145.3%  Unlock6.6%
 Age 15 to 17  Unlock3.6%3.9%
 Age 18 to 203.5%  Unlock4.0%
 Age 21 to 24  Unlock3.6%5.2%
 Age 25 to 3419.9%  Unlock13.8%
 Age 35 to 44  Unlock12.9%12.9%
 Age 45 to 5411.5%  Unlock12.6%
 Age 55 to 59  Unlock7.7%6.7%
 Age 60 to 646.8%  Unlock6.3%
 Age 65 to 74  Unlock9.5%9.6%
 Age 75 to 843.5%  Unlock4.5%
 Age 85 and over  Unlock3.6%1.9%
 space1
 Race
 St. Louis, MODes Plaines, ILUnited States
 White44.3%  Unlock59.4%
 Black  Unlock2.8%12.2%
 Asian3.4%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.6%0.4%
 Two or More Races2.8%  Unlock3.2%
 Hispanic  Unlock20.0%18.4%
 space2
 Marriage & Family
 St. Louis, MODes Plaines, ILUnited States
 Married Population33.6%  Unlock49.8%
     Currently Married  Unlock52.9%48.0%
 Married but Separated2.9%  Unlock1.8%
 Single Population  Unlock45.7%50.2%
 Never Married48.8%  Unlock33.8%
 Divorced  Unlock8.9%10.8%
 Widowed5.2%  Unlock5.6%
 space5
 Household Size  Unlock2.642.60
 Households141,161  Unlock124,010,992
 Family Households  Unlock15,33580,755,759
     Married couple, w/children20.7%  Unlock30.5%
     Married couple, no children  Unlock45.4%42.9%
 Non Family Households78,602  Unlock43,255,233
     Single householder, w/children  Unlock11.0%15.8%
     Single householder, no children16.4%  Unlock10.8%
Voting
Reviews for St. Louis    113 Reviews
Darren · Northwoods, MO
As a life time resident, I have mixed feelings...
Over 2 years ago

I'm 65 and lived here my entire life. Growing up in St. Louis I've learned there is a like to like about it. Lots of first class Hospitals and Doctors, LOTS of great  More

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David · Larkspur, CO
St. Louis is a diamond in the rough...
Over 4 years ago

This is an outsider's perspective on St. Louis. Sometimes a fresh perspective looking in from the outside is helpful. I don't live there as of this writing (Dec 22) but  More

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Jeff · Overland, MO
Great friendly city
Over 4 years ago

I have travelled extensively and have lived in several other cities around the country. I chose to live in St. Louis city because it has many big city amenities with an  More

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Reviews for Des Plaines    4 Reviews
al  · Des Plaines, IL
too high
Over 16 years ago

low  More

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Pat · Des Plaines, IL
Des Plaines
Over 17 years ago

The historic center of des plaines is also downtown. Fairly easy commute to Chicago. The metra is right there. Also there is the Des Plaines public library with a great  More

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Donald · Des Plaines, IL
DP Climate
Over 19 years ago

Changing of the seasons is good. But it's too cold for too  More

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Learn More About St. Louis, Missouri
Overview
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Learn More About Des Plaines, Illinois
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