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Population: 88,254 Males: 42,553 (48.2%),
Females: 45,701 (51.8%)
Elevation: 400 feet
County: Howard
Land area: 27.6 square miles
Zip codes: 21044,
21045,
21046.
Median resident age: 35.5
years Median household income: $71,524 Median house value:
$180,500
Races in Columbia:
Ancestries: German (16.1%), Irish (12.0%), English
(11.6%), Italian (5.3%), Polish (4.2%), United States (3.9%).
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