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Population Density: St. Louis County
 Population Land Area
Sq. Miles
Population Per
Sq. Mile
- 1900 50,040 487 103
- 1910 82,417 487 169
- 1920 100,737 487 207
- 1930 211,593 487 434
- 1940 274,230 497 552
- 1950 406,349 497 818
- 1960 703,532 497 1,416
- 1970 951,671 499 1,907
- 1980 974,177 506 1,925
- 1990 993,529 508 1,957
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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