2025 Compare Cities People:
Decatur, IL vs Sioux Falls, SD

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Highlights
- Sioux Falls is 0% more densely populated than Decatur.
- People are 17.2% more likely to be married in Sioux Falls.
- The Median Age is 5.4 years younger in Sioux Falls.
 Decatur, ILSioux Falls, SDUnited States
 Population  Unlock189,258329,725,481
 Female Population52.7%  Unlock50.5%
 Male Population47.3%  Unlock49.5%
 Median Age  Unlock34.538.4
 space3
 Population - 201076,095  Unlock309,327,143
 Population - 2000  Unlock123,975285,036,114
 Population - 199083,885  Unlock251,960,433
 Pop. 2000 to Now  Unlock51.5%15.6%
 Pop. 1990 to Now-16.5%  Unlock30.8%
 space4
 Population Density  Unlock2,441.793.4
 Land Area42.3  Unlock3,531,905.4
 Water Area  Unlock0.5264,836.8
 space
 Est. Total Population By Age
 Decatur, ILSioux Falls, SDUnited States
 Age 0 to 46.0%  Unlock5.9%
 Age 5 to 9  Unlock7.2%6.1%
 Age 10 to 145.7%  Unlock6.6%
 Age 15 to 17  Unlock3.9%3.9%
 Age 18 to 204.7%  Unlock4.0%
 Age 21 to 24  Unlock5.9%5.2%
 Age 25 to 3413.2%  Unlock13.8%
 Age 35 to 44  Unlock13.7%12.9%
 Age 45 to 5410.8%  Unlock12.6%
 Age 55 to 59  Unlock6.0%6.7%
 Age 60 to 646.8%  Unlock6.3%
 Age 65 to 74  Unlock8.3%9.6%
 Age 75 to 845.7%  Unlock4.5%
 Age 85 and over  Unlock1.5%1.9%
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 Race
 Decatur, ILSioux Falls, SDUnited States
 White67.5%  Unlock59.4%
 Black  Unlock6.6%12.2%
 Asian1.4%  Unlock5.6%
 Native American  Unlock1.7%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races4.9%  Unlock3.2%
 Hispanic  Unlock5.5%18.4%
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 Marriage & Family
 Decatur, ILSioux Falls, SDUnited States
 Married Population42.5%  Unlock49.8%
     Currently Married  Unlock48.6%48.0%
 Married but Separated1.4%  Unlock1.8%
 Single Population  Unlock50.2%50.2%
 Never Married35.7%  Unlock33.8%
 Divorced  Unlock11.4%10.8%
 Widowed7.8%  Unlock5.6%
 space5
 Household Size  Unlock2.372.60
 Households30,718  Unlock124,010,992
 Family Households  Unlock46,15080,755,759
     Married couple, w/children20.5%  Unlock30.5%
     Married couple, no children  Unlock40.2%42.9%
 Non Family Households14,383  Unlock43,255,233
     Single householder, w/children  Unlock18.3%15.8%
     Single householder, no children11.4%  Unlock10.8%
Reviews for Decatur    14 Reviews

I was sent here by the company I worked for in the '90's and was not initially impressed with midwest living. However, over the years I got used to living in the "Pride  More

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I grew up in Decatur and I still have family there, but it depresses me to see what it has become. It has a high unemployment rate, many business have closed or are run  More

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Over 14 years ago

If you enjoy drinking & driving, Decatur's fifteen drive-thru liquor windows, three times the # of drive-thru's than the ten largest cities in Illinois, COMBINED, will  More

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Reviews for Sioux Falls    56 Reviews

I've lived in Sioux Falls for 2 years. I've found it to be a good place to live. The city is not too big, and has an thriving economy. Traffic is not bad, but as the  More

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Sioux Falls isn’t as bad as people make it out to be. I’ve lived here for 2 years and my experience has been pleasant. Sioux Falls is a decent sized city, not too big or  More

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Over 4 years ago

Lived on both sides of the city (it's split up by east side and west side by the locals and they're kinda in competition with each other). I've been here for 3 years and  More

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