Concord is a census-designated place (CDP) in St. Louis County, Missouri, United States. The population was 16,421 at the 2010 census. It should not be confused with Concord Township or Concord Village; the CDP shares much land with both, but these areas’ boundaries are not identical.
Concord is located at 38°30′52″N 90°21′13″W / 38.51444°N 90.35361°W / 38.51444; -90.35361 (38.514386, -90.353666). The CDP is shaped roughly like a figure 8, with the southern loop larger and more rounded than the angular northern loop.
According to the United States Census Bureau, the CDP has a total area of 5.5 square miles (14 km), all land.
Concord is mostly bounded by highways—by Interstate 255, U.S. Route 67 (locally called Lindbergh Boulevard and co-signed here with U.S. Route 50 and U.S. Route 61), Route 21 (known locally as Tesson Ferry Road), and Route 30 (known locally as Gravois Road). Interstate 270 bisects the CDP’s southern node.
As of the census of 2000, there were 16,689 people, 6,926 households, and 5,000 families residing in the CDP. The population density was 3,027.0 people per square mile (1,169.4/km²). There were 7,079 housing units at an average density of 1,283.9/sq mi (496.0/km²). The racial makeup of the CDP was 97.95% White, 0.31% African American, 0.09% Native American, 0.83% Asian, 0.01% Pacific Islander, 0.25% from other races, and 0.57% from two or more races. Hispanic or Latino of any race were 0.84% of the population.
There were 6,926 households out of which 25.7% had children under the age of 18 living with them, 61.6% were married couples living together, 8.2% had a female householder with no husband present, and 27.8% were non-families. 24.5% of all households were made up of individuals and 12.1% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 2.88.
In the CDP, the population was spread out with 20.6% under the age of 18, 6.5% from 18 to 24, 23.8% from 25 to 44, 27.9% from 45 to 64, and 21.3% who were 65 years of age or older. The median age was 44 years. For every 100 females, there were 91.5 males. For every 100 females age 18 and over, there were 88.2 males.
The median income for a household in the CDP was $55,275, and the median income for a family was $64,155. Males had a median income of $47,975 versus $31,675 for females. The per capita income for the CDP was $26,933. About 1.1% of families and 1.7% of the population were below the poverty line, including 1.8% of those under age 18 and 1.7% of those age 65 or over.