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OAK BROOK VS.
HILLSIDE
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2025 Compare Cities People:
Oak Brook, IL vs Hillside, IL
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Highlights
- Hillside is 0% more densely populated than Oak Brook.
- People are 31.6% less likely to be married in Hillside.
- The Median Age is 12.3 years younger in Hillside.
Oak Brook, IL
Hillside, IL
United States
Population
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8,286
329,725,481
Female Population
52.7%
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50.5%
Male Population
47.3%
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49.5%
Median Age
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41.6
38.4
space3
Population - 2010
7,970
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309,327,143
Population - 2000
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8,155
285,036,114
Population - 1990
9,178
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251,960,433
Pop. 2000 to Now
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-4.5%
15.6%
Pop. 1990 to Now
-12.3%
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30.8%
space4
Population Density
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2,604.0
93.4
Land Area
8.0
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3,531,905.4
Water Area
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0.0
264,836.8
space
Est. Total Population By Age
Oak Brook, IL
Hillside, IL
United States
Age 0 to 4
4.3%
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5.9%
Age 5 to 9
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4.1%
6.1%
Age 10 to 14
6.6%
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6.6%
Age 15 to 17
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2.3%
3.9%
Age 18 to 20
2.6%
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4.0%
Age 21 to 24
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3.6%
5.2%
Age 25 to 34
4.4%
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13.8%
Age 35 to 44
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10.0%
12.9%
Age 45 to 54
9.1%
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12.6%
Age 55 to 59
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7.4%
6.7%
Age 60 to 64
4.4%
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6.3%
Age 65 to 74
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9.2%
9.6%
Age 75 to 84
12.0%
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4.5%
Age 85 and over
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4.4%
1.9%
space1
Race
Oak Brook, IL
Hillside, IL
United States
White
61.8%
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59.4%
Black
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43.8%
12.2%
Asian
30.3%
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5.6%
Native American
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0.0%
0.6%
Hawaiian, Pacific Islander
0.0%
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0.2%
Other
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0.3%
0.4%
Two or More Races
2.2%
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3.2%
Hispanic
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33.4%
18.4%
space2
Marriage & Family
Oak Brook, IL
Hillside, IL
United States
Married Population
62.3%
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49.8%
Currently Married
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40.8%
48.0%
Married but Separated
1.4%
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1.8%
Single Population
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57.4%
50.2%
Never Married
19.3%
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33.8%
Divorced
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11.5%
10.8%
Widowed
12.3%
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5.6%
space5
Household Size
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2.70
2.60
Households
3,071
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124,010,992
Family Households
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1,761
80,755,759
Married couple, w/children
29.5%
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30.5%
Married couple, no children
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39.4%
42.9%
Non Family Households
684
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43,255,233
Single householder, w/children
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3.7%
15.8%
Single householder, no children
11.4%
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10.8%
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