As of the census
A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common...
of 2000, there were 18,520 people, 8,033 households, and 4,731 families residing in the city. The population density
Population density is a measurement of population per unit area or unit volume. It is frequently applied to living organisms, and particularly to humans...
was 5,368.7 people per square mile (2,072.6/km²). There were 8,151 housing units at an average density of 2,362.9 per square mile (912.2/km²). The racial makeup of the city was 87.39% White, 3.62% African American, 1.64% Native American, 3.46% Asian, 0.01% Pacific Islander, 1.30% from other races
Race and ethnicity in the United States Census, as defined by the Federal Office of Management and Budget and the United States Census Bureau, are self-identification data items in which residents choose the race or races with which they most closely identify, and indicate whether or not they are...
, and 2.59% from two or more races. Hispanic or Latino of any race were 3.15% of the population.
There were 8,033 households out of which 23.8% had children under the age of 18 living with them, 43.2% were married couples
Marriage is a social union or legal contract between people that creates kinship. It is an institution in which interpersonal relationships, usually intimate and sexual, are acknowledged in a variety of ways, depending on the culture or subculture in which it is found...
living together, 11.0% had a female householder with no husband present, and 41.1% were non-families. 34.0% of all households were made up of individuals and 15.2% had someone living alone who was 65 years of age or older. The average household size was 2.29 and the average family size was 2.93.
In the city the population was spread out with 20.8% under the age of 18, 8.6% from 18 to 24, 30.0% from 25 to 44, 21.9% from 45 to 64, and 18.7% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 92.3 males. For every 100 females age 18 and over, there were 90.1 males.
The median income for a household in the city was $40,562, and the median income for a family was $50,610. Males had a median income of $35,092 versus $28,993 for females. The per capita income
Per capita income or income per person is a measure of mean income within an economic aggregate, such as a country or city. It is calculated by taking a measure of all sources of income in the aggregate and dividing it by the total population...
for the city was $21,368. About 3.9% of families and 6.4% of the population were below the poverty line, including 8.6% of those under age 18 and 5.6% of those age 65 or over.
- Irene Parsons, Columbia Heights Bootstrap Town: A Social history, Published by City of Columbia Heights and Columbia Heights Chamber of Commerce Jeff Johnson, History Chairman (1986)