|City of Ladue, Missouri|
|• Mayor||Nancy Spewak|
|• Total||8.55 sq mi (22.14 km2)|
|• Land||8.55 sq mi (22.14 km2)|
|• Water||0 sq mi (0 km2)|
|Elevation||545 ft (166 m)|
|• Estimate (2012)||8,542|
|• Density||996.6/sq mi (384.8/km2)|
|Time zone||Central (CST) (UTC-6)|
|• Summer (DST)||CST (UTC-5)|
Ladue has the highest median household income of any city in Missouri with a population over 1,000, as well as one of the highest median incomes for any city in the United States.
Ladue is located at (38.636889, -90.381722).
The home ownership rate (owner-occupied housing units to total units) is 91.6%.
As of the census of 2010, there were 8,521 people, 3,169 households, and 2,538 families residing in the city. The population density was 996.6 inhabitants per square mile (384.8/km2). There were 3,377 housing units at an average density of 395.0 per square mile (152.5/km2). The racial makeup of the city was 94.1% White, 1.0% African American, 0.1% Native American, 3.1% Asian, 0.1% Pacific Islander, 0.3% from other races, and 1.4% from two or more races. Hispanic or Latino of any race were 1.4% of the population.
There were 3,169 households of which 36.6% had children under the age of 18 living with them, 72.6% were married couples living together, 5.6% had a female householder with no husband present, 1.9% had a male householder with no wife present, and 19.9% were non-families. 18.3% of all households were made up of individuals and 10.3% had someone living alone who was 65 years of age or older. The average household size was 2.69 and the average family size was 3.06.
The median age in the city was 46.4 years. 27.4% of residents were under the age of 18; 4.3% were between the ages of 18 and 24; 16.1% were from 25 to 44; 33.7% were from 45 to 64; and 18.6% were 65 years of age or older. The gender makeup of the city was 48.5% male and 51.5% female.
As of the census of 2000, there were 8,645 people, 3,414 households, and 2,598 families residing in the city. The population density was 1,006.2 people per square mile (388.6/km²). There were 3,557 housing units at an average density of 414.0 per square mile (159.9/km²). The racial makeup of the city was 96.83% White, 0.88% African American, 0.10% Native American, 1.49% Asian, 0.12% Pacific Islander, 0.13% from other races, and 0.45% from two or more races. Hispanic or Latino of any race were 0.78% of the population.
Ladue is Missouri's best educated city, proportionately, with 74.5% of adult residents (25 and older) holding an associate degree or higher, and 71.8% of adults possessing a baccalaureate degree or higher (2000 Census).
There were 3,414 households out of which 31.4% had children under the age of 18 living with them, 70.6% were married couples living together, 4.0% had a female householder with no husband present, and 23.9% were non-families. 22.8% of all households were made up of individuals and 14.4% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 2.94.
In the city the population was spread out with 24.5% under the age of 18, 3.5% from 18 to 24, 16.9% from 25 to 44, 32.2% from 45 to 64, and 22.8% who were 65 years of age or older. The median age was 48 years. For every 100 females there were 91.2 males. For every 100 females age 18 and over, there were 88.4 males.
The median income for a household in the city was $141,720, and the median income for a family was $179,328. Males had a median income of $100,000 versus $51,678 for females. The per capita income for the city was $89,623. About 1.4% of families and 2.1% of the population were below the poverty line, including 2.0% of those under age 18 and 2.4% of those age 65 or over.
The Ladue School District serves all of Ladue and part of Frontenac, Olivette, and Creve Coeur. The Ladue School District is home to the elementary schools Conway, Old Bonhomme, Reed and Spoede. Ladue Horton Watkins High School is the only high school in the district and is located in Ladue. As of the 2015-2016 academic year, Ladue High School had an enrollment of 1,301 students.
Ladue is home to two of St. Louis' private high schools, the John Burroughs School and Mary Institute and St. Louis Country Day School (MICDS)
Ladue began as a farming community St. Louis County suburb. After St. Louis City ejected St. Louis County in 1876, Ladue was known as ranges 4 and 5 of "Township 45," with Clayton being the political hub. Original Township 45 farming families included the Dennys, Dwyers, Conways, McCutcheons, McKnights (all Irish), Litzsinger, Schraders, Spoedes (all German), LaDues (French), Warsons, Lays, Barnes, Prices, and Watsons (all English). Once automobiles replaced horse and wagon as the primary mode of transportation, farmers in the area began selling portions of their land to city workers who wished to live outside of the urban setting. Three small villages (Village of LaDue, Village of Deer Creek, and the Village of McKnight) merged in 1936 to become what is now known as Ladue. Ladue was named from Ladue Road, the main thoroughfare in the area that led from St. Louis City to wealthy entrepreneur Peter Albert LaDue's large property at the current intersection of Warson Rd. and Ladue Rd. (including St. Louis Country Club). Peter Albert LaDue was a French immigrant who fought in the Revolutionary War as a member of the 1st New York Regiment. After the war, he moved to St. Louis and later became a prominent attorney, alderman, and investor in the 1840s and 1850s.
In the early 1990s the city tried to force a woman to take down a yard sign stating "Say No to the War in the Persian Gulf, Call Congress Now" as it violated a city law. The ACLU sued arguing that the right to place the sign was protected by the 1st Amendment. The ensuing legal battle went to the United States Supreme Court which unanimously ruled, in City of Ladue v. Gilleo, that the right to place the sign was protected by the Constitution.
In 1986 the City of Ladue won a case against E. Terrence Jones and Joan Kelly Horn, a couple who had lived together for four years and who each brought children from a previous relationship. Ladue officials had requested that they marry or leave their home. The Missouri Court of Appeals sided with the city, stating in City of Ladue v. Horn that "A man and woman living together, sharing pleasures and certain responsibilities, does not per se constitute a family in even the conceptual sense. [...] There is no doubt that there is a governmental interest in marriage and in preserving the integrity of the biological or legal family. There is no concomitant governmental interest in keeping together a group of unrelated persons, no matter how closely they simulate a family. Further, there is no state policy which commands that groups of people may live under the same roof in any section of a municipality they choose." Under the Missouri Human Rights Act, passed after the Ladue v. Horn case, §213.040.1, housing discrimination on the basis of familial status is now an unlawful practice.
In 2010 the former chief of police, Larry White, sued the City of Ladue for wrongful termination. The suit was dismissed by the Circuit Court of St Louis County in 2012 and the dismissal upheld by the Missouri Court of Appeals in 2013.
Press reports have indicated the town's municipal court judge has been fixing tickets for people with the right connections. 
- August Busch III, former Chairman of Anheuser-Busch
- Charles F. Knight, former Chairman of Emerson Electric Co.
- Andrew C. Taylor, CEO and Chairman of Enterprise Rent-A-Car and Enterprise Holdings
- David W. Kemper, Chairman, President, and CEO of Commerce Bank (Commerce Bancshares)
- S. Bryan Cook, Chairman and CEO of First National Bank
- John Danforth, U.S. Senator from Missouri
- William H. Danforth, MD, Former Chancellor of Washington University in St. Louis
- Joe Buck, Fox Sports broadcaster
- Arthur F. Kerckhoff Jr., former owner of Pevely Dairy Co.
- Gyo Obata, founder of HOK Architecture
- William DeWitt, Jr., chairman of the St. Louis Cardinals
- Stan Musial, Hall of Fame Major League Baseball player
- David Farr, Chairman & CEO of Emerson Electric Company
- Stephen Brauer, former U.S. ambassador to Belgium
- Maxine Clark, founder and CEO of Build-A-Bear Workshop
- Gene McNary, former St Louis County Executive & former commissioner of the U.S. Immigration and Naturalization Service
- Jay Williamson, PGA golfer
- Douglas B. MacCarthy, founder of what is now the Contemporary Art Museum St. Louis
- William H. T. Bush, brother of President George H. W. Bush
- James Smith McDonnell, founder of McDonnell Douglas (now Boeing)
- W. Stephen Maritz, CEO of Maritz, LLC
- Lee Lieberman, former CEO of Laclede Gas Company
- Dolph Bridgewater, former CEO of Brown Shoe Company
- Eugene F. Williams, former president of the Pitchfork Land & Cattle Co.
- Douglas Yaeger, CEO of The Laclede Group-parent of Laclede Gas Company
- Scott Schnuck, president of Schnucks supermarket chain
- David Farrell, former CEO of The May Department Stores Company-now part of Macy's
- Emily Pulitzer, founder Pulitzer Foundation for the Arts
- Jo Ann Taylor Kindle, President of the Enterprise Holdings Foundation
- Eugene Kahn, former CEO of The May Department Stores Company-now part of Macy's
- Susan S. Elliott, Chairman of SSE
- Elizabeth Elliott Niedringhaus, President and CEO of SSE
- Kevin Mowbray, president of the St. Louis Post-Dispatch
- Frederick von Windegger, president and chairman of Plaza Bank
- Joseph Walker Wear, national tennis champion and former chairman of the Davis Cup
- George Herbert Walker, founder of G. H. Walker & Co.
- Jordan Wheat Lambert, founder of Warner-Lambert, now Pfizer
- JD Wooster Lambert, founder of Lambert Aircraft (Monocoupe Aircraft)
- Horton Watkins, former GM of the International Shoe
- Albert Bond Lambert, olympic golfer and founder of Lambert-St. Louis International Airport
- Joseph Pulitzer II, former chairman of the Pulitzer Prize Board at Columbia University
- Andrew "Cap" Tilles, former owner of Churchill Downs, the racetrack of the Kentucky Derby. Also, founder of Tilles Park in Ladue, and Tilles Park in St. Louis City
- George Dorris, founder of Dorris Motors Corporation and St. Louis Motor Company, two early 20th-century automobile manufacturers
- Arnold Stifel of the Stifel Nicolaus founding family
- Julius Walsh, president of the Mississippi Valley Trust Co.
- Fred G. Zeibig, former president, Saint Louis Real Estate Exchange
- George Howard Williams, former U.S. Senator
- Harry French Knight, founder of the St. Louis Flying Club
- Harold M. Bixby, president of PanAm International
- William B. Robertson, owner of Robertson Aircraft Corporation
- Thomas Schlafly, founder of Schlafly Beer and Saint Louis Brewery
- Sidney Raymond Baer, former president of Stix, Baer, Fuller-now Dillard's
- Aaron Rauh, former president of the Jewish Federation
- E.S. Pillsbury, partner of Thomas Edison and founder of Century Electric Co., now known as Hunter Fan
- Harry Eugene Honeywell, aeronaut and partner of the Wright Brothers
- Charlie Claggett Jr., member of the Marketing Hall of Fame with awards from Cannes, Clio, US TV Commercials Festival and London Art Directors
- Norman Probstein, business manager for NFL Hall of Famer Jackie Smith
- Thumbelina (horse), world's smallest horse per the Guinness Book of World Records
- Otis Brown, NFL running back
- John K. "Jack" Pruellage, chairman of Lewis, Rice & Fingersh
- Lt. Roz Schulte (1984-2009), National Intelligence Medal of Valor recipient and first female U.S. Air Force Academy graduate killed by enemy combatants in the U.S. War on Terrorism in Afghanistan.
- Virginia E. Johnson, sex research pioneer.
- William H. Masters, sex research pioneer.
- Chuck Berry,musician.
- "US Gazetteer files 2010". United States Census Bureau. Retrieved 2012-07-08.
- "American FactFinder". United States Census Bureau. Retrieved 2012-07-08.
- "Population Estimates". United States Census Bureau. Retrieved 2013-05-30.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2014". Retrieved June 4, 2015.
- "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- "Ladue Schools - District Overview". www.ladueschools.net. Retrieved 2016-01-25.
- "Headquarters." St. Louis County Library. Retrieved on August 18, 2009.
- "Ladue city, Missouri." U.S. Census Bureau. Retrieved on August 18, 2009.
- Ladue Found"; Charlene Bry, Virginia Publishing Company, 2011
- "Ladue Found"; Charlene Bry, Virginia Publishing Company, 2011
- CITY OF LADUE ET AL. v. GILLEO, 512 U.S. 43, 55 (The Supreme Court of the United States June 13, 1994) (“Here, in contrast, Ladue has almost completely foreclosed a venerable means of communication that is both unique and important. It has totally foreclosed that medium to political, religious, or personal messages. Signs that react to a local happening or express a view on a controversial issue both reflect and animate change in the life of a community. Often placed on lawns or in windows, residential signs play an important part in political campaigns, during which they are displayed to signal the resident's support for particular candidates, parties, or causes. They may not afford the same opportunities for conveying complex ideas as do other media, but residential signs have long been an important and distinct medium of expression. [...] Although prohibitions foreclosing entire media may be completely free of content or viewpoint discrimination, the danger they pose to the freedom of speech is readily apparent-by eliminating a common means of speaking, such measures can suppress too much speech.”).
- Moore, Martha T. (May 15, 2006). "Parents, kids not necessarily 'family' everywhere". USA Today. Retrieved September 29, 2014.
- CITY OF LADUE, Plaintiff-Respondent, v. Joan K. HORN and E. Terrence Jones, Defendants-Appellants, 720 S.W.2d 745, 752 (Missouri Court of Appeals, Eastern District, Division Three November 4, 1986) (“There is no doubt that there is a governmental interest in marriage and in preserving the integrity of the biological or legal family. There is no concomitant governmental interest in keeping together a group of unrelated persons, no matter how closely they simulate a family. Further, there is no state policy which commands that groups of people may live under the same roof in any section of a municipality they choose.”).
- Article Chapter 213.040, Human Rights, Unlawful housing practices--discrimination in housing--sufficient compliance with other standards--local government compliance --construction of law--housing for older persons, defined--conviction for controlled substances, effect--religious organizations, effect of., Act No. Title XII, Public Health and Welfare of 2005 (in English). Retrieved on September 29, 2014.
- Ratcliffe, Heather (March 26, 2010). "Fired Ladue police chief claims bosses wanted racial harassment". St Louis Post-Dispatch. Retrieved September 29, 2014.
- Larry White vs. City of Ladue, et al (Missouri Court of Appeals December 17, 2013). Text
- Editorial Board (2 June 2015). "More training and police consolidation would improve racial profiling stats". St Louis Post-Dispatch. Retrieved 4 June 2015.