Impact of Climate Change and Land Use on the Southwestern United States

Information resources

1990 Population density for the Southwestern U.S.

1990 Population density by county

Click on a county to obtain population growth data for that county

Population per Square Mile
Map legend		 San Francisco County, CA
Total area: 46 sq. mi
Population density chart
YearPopulationPopulation
density
19003427827415.14
19104169129018.74
192050667610960.54
193063439413723.36
194063453613726.43
195077535716772.71
196074031616014.69
197071567415481.63
198067897414687.73
199372395915660.85

For details about the data, please see

Population Growth of the Southwest United States, 1900-1990 by Martin Chourre with Stewart Wright (in this web conference)
Data sources: USGS Rocky Mountain Mapping Center and U.S. Bureau of the Census
Original software by Peter Schweitzer with assistance from Yew Yuan

USGS

U.S. Department of the Interior | U.S. Geological Survey
URL: http://geochange.er.usgs.gov/sw/resources/population/199006075.html
Page Contact Information: ESD Web Team
Page Last Modified: Fri 28-Nov-2003 9:05:46 MST
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