Clayton is a city in and the county seat of St. Louis County, Missouri, United States, that borders the west side of the independent city of St. Louis. The population was 17,355 at the 2020 census. Organized in 1877, the city was named after Ralph Clayton, a citizen who donated the land for the St. Louis County courthouse.

Geography

Cityscape The architecture of central Clayton reflects its economic activity and eras of growth. An impressive collection of mid-century modern low and high rise structures contrast with earlier mansions, stores and flats. Its surrounding residential neighborhoods maintain a dense, walkable character and were largely developed in the pre-war era. These neighborhoods consist of brick walkups, apartment buildings, mansions and modest single family homes centered around several small business districts.

Neighborhoods

Claverach Park Claverach Park is a residential neighborhood bounded by Wydown Boulevard on the north, Ridgemoor Drive and Big Bend Boulevard on the east, Clayton Road on the south, and Audubon Drive on the west. The neighborhood was planned in the early 1920s by Julius Pitzman who avoided a traditional street grid in favor of curvilinear streets lined by stately trees, one centrally located neighborhood park, and 9 pocket parks. Oak Knoll Park, Clayton's second largest park and the former home to the St. Louis Academy of Science, is located in the neighborhood.

Clayshire Clayshire is a suburban neighborhood bounded by Forest Park Parkway on the north, Interstate 170 on the east, Clayton Road on the south and the Ladue city limit to the west and includes the subdivision of Tanglewood. Unlike Clayton's denser pre-war residential neighborhoods, Clayshire is characterized by a more post-war suburban development pattern. Neighborhood parks include Anderson Park, Clayshire Park, and Whitburn Park as well as a pedestrian underpass beneath I-170 that connects to Shaw Park. There is a small commercial area at the intersection of Clayton Road and Brentwood Boulevard.

Davis Place

A large residential neighborhood, Davis Place is characterized primarily by single family homes with some apartment buildings along Hanley Road and Brentwood Boulevard. Its boundaries are Forest Park Parkway on the north, Hanley Road on the east, Clayton Road on the south, and Brentwood Boulevard on the west. The neighborhood includes the subdivisions Country Club Place, Country Club Court, and Remmerts. Davis Place is also home to the Shops of Clayton commercial corridor along Clayton Road.

DeMun Part of the Hi-Pointe–DeMun Historic District, DeMun is primarily a residential neighborhood on the eastern edge of Clayton. It is a dense and walkable neighborhood characterized by brick and limestone pre-war apartment blocks, single family homes and small commercial areas centered around DeMun Avenue and Clayton Road. The neighborhood is also home to Concordia Seminary, the South Campus of Washington University, and three public parks (Concordia, DeMun, and Henry Wright).

The boundaries of DeMun in Clayton are Concordia Seminary's northern property line and Northwood Avenue, the St. Louis city limit to the east, Clayton Road to the south, and Big Bend Boulevard to the west.

Downtown Clayton

Downtown Clayton is the seat of St. Louis County government and home to its headquarters campus. The neighborhood is home to three of the St. Louis region's seven Fortune 500 headquarters; Centene Corporation, Emerson Electric, and Graybar. Additionally, the neighborhood is home to four of the region's seven Fortune 1000 headquarters; Advantage Solutions, Caleres, Energizer Holdings, and Olin Corporation. Commerce Bank, the Regional Business Council and the St. Louis Club are located here as well. Downtown Clayton is known for its many restaurants and cafes and hosts the St. Louis Art Fair during September each year. Recently, the neighborhood has entered a period of significant redevelopment and new construction with the opening of the Two Twelve Clayton and Ceylon apartment buildings in 2017, Centene Plaza C in 2019, and Forsyth Pointe in 2023. As of 2022, downtown Clayton had seven projects, worth approximately $600 million, either in development or under construction.

The boundaries of downtown Clayton are Maryland Avenue on the north, the University City limit on the east, Forest Park Parkway on the south, and Brentwood Boulevard on the west. The neighborhood is served by MetroLink via the Blue Line at the Clayton and Forsyth stations.

Moorlands Like Clayton's other urban, walkable neighborhoods, the Moorlands is characterized by large, pre-war masonry apartment buildings and single family homes with high-rise apartment buildings along Hanley Road and a small commercial district at the intersection of Hanley and Wydown Boulevard. Most of the single family homes are concentrated east of Glenridge Drive while most of the apartment buildings are concentrated to the west. The neighborhood's boundaries are Wydown Boulevard on the north, Audubon Drive on the east, Clayton Road on the south, and Hanley Road on the west.

North Clayton North Clayton is a dense, walkable set of neighborhoods that encompass all of Clayton north of Maryland Avenue. The area is mostly made up of single family homes with office, apartment and condo buildings located primarily between Meramec Avenue and Brentwood Boulevard. Commercial corridors include Meramec and Maryland avenues. The neighborhood is home to Kol Rinah synagogue, St. Joseph Catholic Church, the Mid County branch of the St. Louis County Library, and Centene's corporate training center. Neighborhood parks include Taylor Park and Hanley Park which includes the historic Hanley House.

Subdivisions within North Clayton include the Bemiston additions, Clayton Gardens, Colonial Park, Hanley Place, and Maryland Terrace. Its boundaries to the north and east are the city limits with University City, its southern boundary is Maryland Avenue, and its western boundary is the Ladue city limit.

Other neighborhoods Other neighborhoods and subdivisions within Clayton include Brentmoor and Brentmoor Park, Carrswold, Ellenwood, Forest Ridge, Hillcrest, Parkside, Skinker Heights, Southmoor, Tesson, Tuscany Park, Wydown Forest, and Wydown Terrace.

Demographics In the St. Louis region, Clayton is well known for housing a wealthy, educated, professional, and often dual-income population.

Racial and ethnic composition +Clayton city, Missouri – Racial and ethnic compositionRace / Ethnicity (NH = Non-Hispanic)Pop 2000Pop 2010Pop 2020% 2000% 2010% 2020White alone (NH)10,74012,06012,15383.74%75.66%70.03%Black or African American alone (NH)9961,2921,3767.77%8.11%7.93%Native American or Alaska Native alone (NH)1521130.12%0.13%0.07%Asian alone (NH)7211,7112,2265.62%10.73%12.83%Native Hawaiian or Pacific Islander alone (NH)4320.03%0.02%0.01%Other race alone (NH)1513740.12%0.08%0.43%Mixed race or Multiracial (NH)1433518121.12%2.20%4.68%Hispanic or Latino (any race)1914886991.49%3.06%4.03%Total12,82515,93917,355 100.00%100.00%100.00%

2020 census As of the 2020 census, Clayton had a population of 17,355. The median age was 30.7 years. 16.4% of residents were under the age of 18, and 15.3% were 65 years of age or older. For every 100 females, there were 97.9 males, and for every 100 females age 18 and over, there were 96.1 males age 18 and over.

100.0% of residents lived in urban areas, while 0.0% lived in rural areas.

There were 6,158 households in Clayton, of which 26.5% had children under the age of 18 living in them. Of all households, 45.1% were married-couple households, 20.2% were households with a male householder and no spouse or partner present, and 30.8% were households with a female householder and no spouse or partner present. About 39.0% of all households were made up of individuals, and 12.7% had someone living alone who was 65 years of age or older.

There were 6,926 housing units, of which 11.1% were vacant. The homeowner vacancy rate was 2.1%, and the rental vacancy rate was 9.8%.

Income and poverty The 2016–2020 5-year American Community Survey estimates show that the median household income was $108,387 (with a margin of error of +/- $9,440) and the median family income was $157,621 (+/- $21,434). Males had a median income of $54,146 (+/- $10,043) versus $36,023 (+/- $10,664) for females. The median income for those above 16 years old was $42,336 (+/- $3,903). Approximately, 6.2% of families and 8.0% of the population were below the poverty line, including 5.2% of those under the age of 18 and 2.8% of those ages 65 or over.

2010 census As of the census of 2010, there were 15,939 people, 5,322 households, and 2,921 families living in the city. The population density was . There were 6,321 housing units at an average density of . The racial makeup of the city was 78.0% White, 8.2% African American, 0.2% Native American, 10.8% Asian, 0.4% from other races, and 2.4% from two or more races. Hispanic or Latino of any race were 3.1% of the population.

There were 5,322 households, of which 26.3% had children under the age of 18 living with them, 46.3% were married couples living together, 6.7% had a female householder with no husband present, 1.9% had a male householder with no wife present, and 45.1% were non-families. 37.5% of all households were made up of individuals, and 11.2% had someone living alone who was 65 years of age or older. The average household size was 2.12 and the average family size was 2.86.

The median age in the city was 29.2 years. 15.8% of residents were under the age of 18; 27.6% were between the ages of 18 and 24; 23.3% were from 25 to 44; 21.6% were from 45 to 64; and 11.8% were 65 years of age or older. The gender makeup of the city was 50.9% male and 49.1% female.

2000 census As of the census of 2000, there were 12,825 people, 5,370 households, and 2,797 families living in the city. The population density was . There were 5,852 housing units at an average density of . The racial makeup of the city was 84.94% White, 7.77% Black or African American, 0.12% Native American, 5.62% Asian, 0.03% Pacific Islander, 0.29% from other races, and 1.22% from two or more races. Hispanic or Latino of any race were 1.49% of the population.

There were 5,370 households, out of which 25.9% had children under the age of 18 living with them, 43.4% were married couples living together, 6.7% had a female householder with no husband present, and 47.9% were non-families. 40.4% of all households were made up of individuals, and 11.8% had someone living alone who was 65 years of age or older. The average household size was 2.09 and the average family size was 2.90.

In the city, the population was spread out, with 20.1% under the age of 18, 10.7% from 18 to 24, 32.3% from 25 to 44, 22.6% from 45 to 64, and 14.3% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 100.5 males. For every 100 females age 18 and over, there were 98.0 males.

The median income for a household in the city was $64,184, and the median income for a family was $107,346. Males had a median income of $64,737 versus $42,757 for females. The per capita income for the city was $48,055. About 5.0% of families and 7.7% of the population were below the poverty line, including 9.5% of those under age 18 and 3.2% of those age 65 or over. Government Clayton is governed via a six-member board of aldermen and a mayor. Aldermen are elected from one of three wards with each electing two members. The mayor is elected in a citywide vote. A city clerk is appointed by the Mayor and Board of Aldermen. Police services are provided by the Clayton Police Department, led by Chief Mark J. Smith, with fire and rescue services provided by the Clayton Fire Department, led by Chief Ernie Rhodes.

Currently the mayor of Clayton is Bridget McAndrew and the Board of Aldermen includes: