Censuses are not conducted in a vacuum. They occur amidst internal and external crisis, shifts in cultural interests, and events that become "defining moments" for each decade. Census data reflect the growth of the population as well as the changing values and interests of the American people.

Decennial Historical Facts provides a portrait of the United States both statistically and culturally in the following four areas:

Pop Culture – key milestones from the decade following the census.
Population
Census Details
10 Largest Urban Places

1940

ICONS: Mount Rushmore, World War II, Mach 1

Population

132,164,569	U.S. Resident Population
37.2	Population per square mile of land area
7.3	Percent increase of population from 1930 to 1940
48	Number of States

10 Largest Urban Places

Rank	Place	Population
1	New York City, NY	7,454,995
2	Chicago, IL	3,396,808
3	Philadelphia, PA	1,931,334
4	Detroit, MI	1,623,452
5	Los Angeles, CA	1,504,277
6	Cleveland, OH	878,336
7	Baltimore, MD	859,100
8	St. Louis, MO	816,048
9	Boston, MA	770,816
10	Pittsburgh, PA	671,659

The 1940 Census

Cost	$67,527,000
Cost per Capita (cents)	51.1
Total Pages in Published Reports	58,400
Number of Enumerators	123,069
Census Bureau Director	William Lane Austin
Number of Questions on the Questionnaire	N/A
Number of Questions on the Long Form	N/A

Pop Culture

Marvel Comics introduces superhero Captain America in March 1941.
After approximately 14 years, carving at Mount Rushmore concludes in October 1941.
Diarist Anne Frank and her family go into hiding in the "Achterhuis" on July 6, 1942, in Amsterdam.
Walt Disney wins a 1943 Academy Award for his animated short film Der Fuehrer's Face.
Band leader Alton Glenn Miller disappears while enroute to Paris, France, December 15, 1944.
Department stores begin selling Tupperware® in 1946.
Charles Yeager becomes the first man to break the sound barrier on October 14, 1947, flying the experimental Bell X-1 at Mach 1 at an altitude of 45,000 ft.
NASCAR® holds its first modified stock car race in Daytona Beach, FL, in 1948.
George Orwell publishes Nineteen Eighty-Four in 1949.