1. Population Migration
After completing this lesson, Student will be able to:
Identify factors that impact population distribution.

2. Where does the world live?
Population Distribution
The pattern of human development
Where people live
Population Density
The average number of people living in a Sq. mile/km.
What impact does population density have on geography?

3. Population Migration
Migration is the movement of people from one place to another.
Why do people want to move?
Escape oppression
Avoid Natural Disaster
Economic opportunity
Many people migrate from rural areas to urban areas in search of jobs
This is known as urbanization
Rural Vietnam

4. Push/Pull Factors
Push Factors- Generally a negative reason why someone would want to migrate to another location.
Escape oppression
Economic
Political
Social
Avoid Natural Disaster
Hurricane Katrina
Escape Poverty

5. Push/Pull Factors
Pull Factors- generally a positive reason why someone would want to migrate to another location.
Economic reasons; new better job
Historically, to be close to natural resources
Any factor that enhances a persons well being after they have migrated.

6. Urbanization Most urban areas are functional regions.
As such they are generally centers of business and commerce.
Many people throughout the world migrate to cities in order to find better jobs.
What type of jobs are prominent in most highly developed cities?
Service/high tech jobs*
What is the urbanization rate of the USA?
82.4%

7. Rural Areas Definition varies by circumstance;
Typical rural areas have a low population density and small settlements.
Mostly agricultural areas
Landform distribution may have some influence.
South America
North America
North Africa
Western China
Eastern Russia

8. What factor most contributes to
the population density of the
Western United States

10. Other Factors
Physical Geography has a large influence on where people live and why.
Do you remember this slide?
What was the most important factor in the location of these major American cities?
Water

11. Other Factors
Natural resources also played a huge role in the development of American cities and population distribution.
Pittsburgh, Pa
San Francisco, Ca
Chisholm Trail

12. Pittsburgh, PA
Pittsburgh was developed at the “Location” where the Ohio, Alleghany, and Monongahela rivers converged.
Coal was discovered in the Northeastern U.S. around Pittsburgh.
Coal from the area and Iron were used to make Steel.
Steel was used to build America during the Industrial revolution

13. San Francisco, Ca 1848 Gold was discovered in Northern California.
Many people migrated to take advantage of this resource.
San Francisco is one of the more sophisticated, progressive areas of the U.S.
Many railroads were built to transport people to California.
Cities were developed along the railroads

14. Chisholm Trail
As cattle were driven north to be transported east by railroad. Many cities were developed on the Chisholm Trail.
Many people sold goods to the drovers pushing the cattle.
Interstate highways mirror the original trail

15. Review Population distribution is impacted by many factors.
Many people will migrate in order to improve their standard of living; Push or Pull factors.
Physical Geography has a large bering on the location of cities and where people ultimately choose to live.