| Columbia, MD | Lombard, IL | United States |
Population | 105,086 | 44,311 | 329,725,481 |
Female Population | 51.9% | 51.6% | 50.5% |
Male Population | 48.1% | 48.5% | 49.5% |
Median Age | 38.9 | 37.9 | 38.4 |
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Population - 2010 | 98,379 | 43,514 | 309,327,143 |
Population - 2000 | 88,254 | 42,322 | 285,036,114 |
Population - 1990 | 75,883 | 39,408 | 251,960,433 |
Pop. 2000 to Now | 23.2% | 3.9% | 15.6% |
Pop. 1990 to Now | 43.3% | 11.6% | 30.8% |
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Population Density | 3,290.5 | 4,340.8 | 93.4 |
Land Area | 31.9 | 10.2 | 3,531,905.4 |
Water Area | 0.3 | 0.2 | 264,836.8 |
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Est. Total Population By Age | | | |
| Columbia, MD | Lombard, IL | United States |
Age 0 to 4 | 5.5% | 6.0% | 5.9% |
Age 5 to 9 | 5.4% | 6.1% | 6.1% |
Age 10 to 14 | 6.4% | 5.6% | 6.6% |
Age 15 to 17 | 3.9% | 3.0% | 3.9% |
Age 18 to 20 | 3.6% | 3.7% | 4.0% |
Age 21 to 24 | 5.2% | 4.7% | 5.2% |
Age 25 to 34 | 14.4% | 16.6% | 13.8% |
Age 35 to 44 | 14.1% | 13.3% | 12.9% |
Age 45 to 54 | 13.3% | 11.6% | 12.6% |
Age 55 to 59 | 6.8% | 7.3% | 6.7% |
Age 60 to 64 | 5.8% | 6.3% | 6.3% |
Age 65 to 74 | 8.9% | 8.6% | 9.6% |
Age 75 to 84 | 4.7% | 4.6% | 4.5% |
Age 85 and over | 2.1% | 2.7% | 1.9% |
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Race | | | |
| Columbia, MD | Lombard, IL | United States |
White | 44.8% | 70.2% | 59.4% |
Black | 27.2% | 4.6% | 12.2% |
Asian | 13.3% | 12.1% | 5.6% |
Native American | 0.3% | 0.1% | 0.6% |
Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
Other | 0.7% | 0.2% | 0.4% |
Two or More Races | 5.0% | 3.1% | 3.2% |
Hispanic | 8.6% | 9.8% | 18.4% |
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Marriage & Family | | | |
| Columbia, MD | Lombard, IL | United States |
Married Population | 49.7% | 54.4% | 49.8% |
Currently Married | 48.3% | 53.8% | 48.0% |
Married but Separated | 1.4% | 0.6% | 1.8% |
Single Population | 50.3% | 45.6% | 50.2% |
Never Married | 34.8% | 31.2% | 33.8% |
Divorced | 10.1% | 8.5% | 10.8% |
Widowed | 5.4% | 6.0% | 5.6% |
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Household Size | 2.55 | 2.54 | 2.60 |
Households | 40,937 | 17,211 | 124,010,992 |
Family Households | 27,463 | 11,280 | 80,755,759 |
Married couple, w/children | 30.4% | 34.7% | 30.5% |
Married couple, no children | 41.4% | 44.6% | 42.9% |
Non Family Households | 13,474 | 5,931 | 43,255,233 |
Single householder, w/children | 14.3% | 9.6% | 15.8% |
Single householder, no children | 13.9% | 11.1% | 10.8% |