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Population Density

Population Density. Refers to the number of people in a certain area of land Formula to calculate: Population ÷ Land area = # of people / km 2 NL for example: (Population) ÷ (Land Area) = # ppl/ km 2 551,792 ÷ 405,720 km 2 = 1.36 That is there is: 1.36 people/ km 2.

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Population Density

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  1. Population Density • Refers to the number of people in a certain area of land Formula to calculate: Population ÷ Land area = # of people / km2 NL for example: (Population) ÷(Land Area) = # ppl/km2 551,792÷ 405,720 km2 = 1.36 • That is there is: 1.36 people/km2

  2. What is the population density of: Bangladesh Population 127,117,967 Land Area 133,910 km2 POPULATION DENSITY = 949 people/ km2 Brazil Population 171,853,126 Land Area 8,456,510 km2 POPULATION DENSITY = 20 people/ km2 Population Density

  3. Densely populated = More than 100people/ km2 Sparselypopulated = Less than 100people/ km2 Brazil? 20 people/ km2 Sparsely populated Bangladesh? 949 people/ km2 Densely populated NL? 1.36 people/ km2 Sparsely populated How populated?

  4. Population Density NOT a good indicator… why not? • Assumes people are equally/evenly spread out. • Assumes all land is usable • Assumes ALL land is USED For example: • A country can have a low population density BUT… • Cities withinthat country can have a very high population density(densely populated). • Country of Spain = 78.43 people/ km2 • As a country - Sparsely populated (<100 ppl/km2) • City of Barcelona, Spain = 3404 people/ km2

  5. Population Distribution • Describes how people are spread out. • Where people live! • When combined with population density gives a more accurate picture of the population. • Where are the heavier concentrations of people versus the sparsely populated areas?

  6. Identify global patterns of population distribution • Use MAP ( figure 18.5) on page 304 • Make reference to density AND locations

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