2025 Compare Cities People:
Watertown, WI vs Decatur, IL

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Highlights
- Decatur is 0% more densely populated than Watertown.
- People are 11.4% less likely to be married in Decatur.
- The Median Age is 0.5 years older in Decatur.
 Watertown, WIDecatur, ILUnited States
 Population  Unlock71,309329,725,481
 Female Population52.0%  Unlock50.5%
 Male Population48.0%  Unlock49.5%
 Median Age  Unlock39.938.4
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 Population - 201023,861  Unlock309,327,143
 Population - 2000  Unlock81,860285,036,114
 Population - 199019,142  Unlock251,960,433
 Pop. 2000 to Now  Unlock-14.5%15.6%
 Pop. 1990 to Now22.1%  Unlock30.8%
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 Population Density  Unlock1,685.093.4
 Land Area12.1  Unlock3,531,905.4
 Water Area  Unlock4.7264,836.8
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 Est. Total Population By Age
 Watertown, WIDecatur, ILUnited States
 Age 0 to 44.9%  Unlock5.9%
 Age 5 to 9  Unlock5.5%6.1%
 Age 10 to 147.1%  Unlock6.6%
 Age 15 to 17  Unlock3.7%3.9%
 Age 18 to 205.2%  Unlock4.0%
 Age 21 to 24  Unlock5.2%5.2%
 Age 25 to 3412.4%  Unlock13.8%
 Age 35 to 44  Unlock11.3%12.9%
 Age 45 to 5412.4%  Unlock12.6%
 Age 55 to 59  Unlock7.0%6.7%
 Age 60 to 646.7%  Unlock6.3%
 Age 65 to 74  Unlock11.1%9.6%
 Age 75 to 846.5%  Unlock4.5%
 Age 85 and over  Unlock3.3%1.9%
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 Race
 Watertown, WIDecatur, ILUnited States
 White84.1%  Unlock59.4%
 Black  Unlock23.0%12.2%
 Asian0.3%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.1%0.4%
 Two or More Races2.6%  Unlock3.2%
 Hispanic  Unlock2.8%18.4%
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 Marriage & Family
 Watertown, WIDecatur, ILUnited States
 Married Population48.0%  Unlock49.8%
     Currently Married  Unlock41.1%48.0%
 Married but Separated0.9%  Unlock1.8%
 Single Population  Unlock57.5%50.2%
 Never Married31.8%  Unlock33.8%
 Divorced  Unlock14.0%10.8%
 Widowed6.7%  Unlock5.6%
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 Household Size  Unlock2.212.60
 Households8,996  Unlock124,010,992
 Family Households  Unlock16,33580,755,759
     Married couple, w/children28.4%  Unlock30.5%
     Married couple, no children  Unlock48.1%42.9%
 Non Family Households3,248  Unlock43,255,233
     Single householder, w/children  Unlock20.0%15.8%
     Single householder, no children9.3%  Unlock10.8%
Reviews for Watertown    1 Reviews

I have lived in Watertown for over two years now and I find the price to be lower here than most other areas in southeastern Wisconsin. It is also close enought to both  More

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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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