© t. m. whitmore today population distribution and the evolution of the usa urban system some...
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© T. M. Whitmore
Today
•Population distribution and the evolution of the USA urban system
•Some spatial patterns by race/ethnicity
© T. M. Whitmore
Population distribution & evolution of USA urban
system•Stage I: pre-industrial (18th C –
1860s)Population/immigrationMigration/resettlementUrban regions Urban land uses & morphology
© T. M. Whitmore
Population distribution & evolution of USA urban
system II•Stage II: industrial revolution
(1860s – 1930s)Population/immigrationMigration/resettlementUrban regions & increased urbanization
Urban land uses & morphology
© T. M. Whitmore
Population distribution & evolution of USA urban
system III•Stage III: rise of the car (1930s –
1950s)Population/immigrationMigration/resettlementUrban regions & urbanizationUrban land uses & morphology
The North American Megalopolis:- Home to ~45 million- Includes Boston, New York, Philadelphia, Baltimore, Washington DC and many smaller cities.- Why here?: access to Europe, deep harbors, and agricultural and mineral resources inland
© T. M. Whitmore
Population distribution & evolution of USA urban
system IV•Stage IV: Post-industrial (1950s –)
Population/immigrationMigration/resettlementUrban regions Urban land uses & morphology
© T. M. WhitmoreUS Global Change Research Program
Density: note higher densities in older northern metro areasGrowth: note declines in northern metro areas and increases in southern metro areas and the southwest
© T. M. Whitmore
Changing national population distribution
•Changing national population distribution
•Current immigration originsSpatial patterns of recent immigration
•Ethnicity & Race
Number of Immigrants Sent from the Ten Largest Immigrant-Contributing Countries in 2001
206,426
70,29056,426 53,154
35,531 31,272 27,703 27,120 23,640 21,933
0
50,000
100,000
150,000
200,000
250,000
38 million foreign-born persons live in the US, 13% of the US population.
US
~9 million undocumented immigrants lived in the United States in 2000, 55% of whom were from Mexico.
Illegal immigration has both positive or neutral impacts overall on the US economy. Negative impacts are most likely for the US-born poor.
Source: Population Reference Bureau analysis of the 2003 American Community Survey.
Percent Foreign-Born by State, 2003
Whites will become a minority in the US in this century.
US Total Fertility Rate: 2.09US Population Growth Rate: 0.894%
© T. M. Whitmore
Poverty•Share of Total Household Income (1998
Dollars) 1973
Lowest fifth: 4.3%Highest fifth: 43.3%
2000 Lowest fifth – declining: 3.6%Highest fifth – increasing: 49.6% (nearly 1/2 of all income to top 20%)
•Spatial patterns of poverty