2025 Compare Cities People:
Watertown, SD vs Columbia, IL

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Highlights
- Columbia is 0% more densely populated than Watertown.
- People are 24.9% more likely to be married in Columbia.
- The Median Age is 1.1 years older in Columbia.
 Watertown, SDColumbia, ILUnited States
 Population  Unlock11,090329,725,481
 Female Population49.7%  Unlock50.5%
 Male Population50.3%  Unlock49.5%
 Median Age  Unlock39.338.4
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 Population - 201021,520  Unlock309,327,143
 Population - 2000  Unlock7,922285,036,114
 Population - 199017,592  Unlock251,960,433
 Pop. 2000 to Now  Unlock34.2%15.6%
 Pop. 1990 to Now26.8%  Unlock30.8%
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 Population Density  Unlock1,081.693.4
 Land Area18.0  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
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 Est. Total Population By Age
 Watertown, SDColumbia, ILUnited States
 Age 0 to 45.9%  Unlock5.9%
 Age 5 to 9  Unlock5.8%6.1%
 Age 10 to 146.7%  Unlock6.6%
 Age 15 to 17  Unlock2.7%3.9%
 Age 18 to 204.2%  Unlock4.0%
 Age 21 to 24  Unlock1.6%5.2%
 Age 25 to 3413.6%  Unlock13.8%
 Age 35 to 44  Unlock13.4%12.9%
 Age 45 to 5410.8%  Unlock12.6%
 Age 55 to 59  Unlock8.1%6.7%
 Age 60 to 646.2%  Unlock6.3%
 Age 65 to 74  Unlock7.5%9.6%
 Age 75 to 845.3%  Unlock4.5%
 Age 85 and over  Unlock2.4%1.9%
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 Race
 Watertown, SDColumbia, ILUnited States
 White89.7%  Unlock59.4%
 Black  Unlock0.1%12.2%
 Asian0.7%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.7%0.4%
 Two or More Races1.9%  Unlock3.2%
 Hispanic  Unlock1.6%18.4%
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 Marriage & Family
 Watertown, SDColumbia, ILUnited States
 Married Population51.2%  Unlock49.8%
     Currently Married  Unlock63.4%48.0%
 Married but Separated1.5%  Unlock1.8%
 Single Population  Unlock36.1%50.2%
 Never Married30.7%  Unlock33.8%
 Divorced  Unlock10.4%10.8%
 Widowed7.4%  Unlock5.6%
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 Household Size  Unlock2.602.60
 Households9,725  Unlock124,010,992
 Family Households  Unlock3,10280,755,759
     Married couple, w/children34.2%  Unlock30.5%
     Married couple, no children  Unlock43.9%42.9%
 Non Family Households4,163  Unlock43,255,233
     Single householder, w/children  Unlock9.3%15.8%
     Single householder, no children10.0%  Unlock10.8%
Reviews for Watertown    5 Reviews

Let me start by saying that I've lived all over the US and spent 3 years in Watertown. On the positive side, Watertown has a lot to offer for a town of 22,000 people.   More

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Many lakes with in driving distances and many public hunting areas but if your looking for the night life its not here this is a small town  More

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Watertown in general has alot of old people, if your in Downtown and watch cars go by it seems as though every other car has a elderly person in it. But apart from all  More

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Reviews for Columbia    3 Reviews

Over 16 years ago

I actually live in the next town over, but work full-time in Columbia, and it's a really nice town. It is the walking-est city I have ever seen; people enjoy riding  More

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Over 17 years ago

Columbia,Illinois has to be the most stuck up and unfriendly little one horse town i've ever lived in . People here feel that if you weren't born and raised here  More

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Over 17 years ago

Columbia, Illinois is located at the northern tip of Monroe County in Southwestern Illinois only about 12 miles from downtown St. Louis. 20 miles from Scott Air Force  More

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