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Population Density: Washington County
 Population Land Area
Sq. Miles
Population Per
Sq. Mile
- 1900 14,263 741 19
- 1910 13,378 741 18
- 1920 13,803 741 19
- 1930 14,450 741 20
- 1940 17,492 760 23
- 1950 14,689 760 19
- 1960 14,346 760 19
- 1970 15,086 760 20
- 1980 17,983 762 24
- 1990 20,380 760 27
SOURCE: USDC, Bureau of the Census; MO Office of Administration
Comma-delimited file - all MO Countieshistpop1.csv


University of Missouri ExtensionEvelyn Cleveland
clevelande@missouri.edu
Last modified January 15, 1998

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