2025 Compare Cities People:
Arlington Heights, IL vs Ottawa, IL

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Highlights
- Ottawa is 0% more densely populated than Arlington Heights.
- People are 20.3% less likely to be married in Ottawa.
- The Median Age is 3.3 years younger in Ottawa.
 Arlington Heights, ILOttawa, ILUnited States
 Population  Unlock18,719329,725,481
 Female Population50.6%  Unlock50.5%
 Male Population49.4%  Unlock49.5%
 Median Age  Unlock39.738.4
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 Population - 201075,252  Unlock309,327,143
 Population - 2000  Unlock18,307285,036,114
 Population - 199075,460  Unlock251,960,433
 Pop. 2000 to Now  Unlock-1.2%15.6%
 Pop. 1990 to Now-1.9%  Unlock30.8%
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 Population Density  Unlock1,463.093.4
 Land Area16.6  Unlock3,531,905.4
 Water Area  Unlock0.9264,836.8
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 Est. Total Population By Age
 Arlington Heights, ILOttawa, ILUnited States
 Age 0 to 46.5%  Unlock5.9%
 Age 5 to 9  Unlock7.0%6.1%
 Age 10 to 146.4%  Unlock6.6%
 Age 15 to 17  Unlock4.8%3.9%
 Age 18 to 202.0%  Unlock4.0%
 Age 21 to 24  Unlock4.3%5.2%
 Age 25 to 3410.8%  Unlock13.8%
 Age 35 to 44  Unlock11.3%12.9%
 Age 45 to 5414.0%  Unlock12.6%
 Age 55 to 59  Unlock7.8%6.7%
 Age 60 to 646.6%  Unlock6.3%
 Age 65 to 74  Unlock9.6%9.6%
 Age 75 to 845.6%  Unlock4.5%
 Age 85 and over  Unlock2.8%1.9%
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 Race
 Arlington Heights, ILOttawa, ILUnited States
 White75.6%  Unlock59.4%
 Black  Unlock4.6%12.2%
 Asian10.4%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races2.1%  Unlock3.2%
 Hispanic  Unlock8.7%18.4%
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 Marriage & Family
 Arlington Heights, ILOttawa, ILUnited States
 Married Population60.6%  Unlock49.8%
     Currently Married  Unlock45.6%48.0%
 Married but Separated1.1%  Unlock1.8%
 Single Population  Unlock51.8%50.2%
 Never Married25.7%  Unlock33.8%
 Divorced  Unlock13.8%10.8%
 Widowed5.8%  Unlock5.6%
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 Household Size  Unlock2.392.60
 Households31,421  Unlock124,010,992
 Family Households  Unlock4,61180,755,759
     Married couple, w/children37.3%  Unlock30.5%
     Married couple, no children  Unlock39.7%42.9%
 Non Family Households10,615  Unlock43,255,233
     Single householder, w/children  Unlock20.3%15.8%
     Single householder, no children6.5%  Unlock10.8%
Reviews for Arlington Heights    9 Reviews

Over 7 years ago

I’ve lived in this city my whole life and it is the absolute best. The people are so kind and always greet you with a smile. The education systems are very good and it  More

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Over 12 years ago

Downtown Arlington Heights has a lot going on, especially in the summer. There are good restaurants and other businesses, and the festivals/music are very good, too. A  More

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Over 14 years ago

After growing up in Deerfield, IL, there is no doubt in my mind that places like Deerfield and Arlington Heights have exceptional education for children. Education  More

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Reviews for Ottawa    6 Reviews

Over 8 years ago

Have all of the radiation sites been cleaned up? If not, did the tornado stir up and blast some radiation from these sites to other  More

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Over 11 years ago

Good location with low cost of living and close enough to Chicago and suburbs to take advantage of their  More

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Over 15 years ago

Although Ottawa is a very nice place to live, living here is becoming rediculous...as taxes go. I bought a house less then four years ago and my taxed went from  More

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