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Population Density

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Population Density Population density: The number of humans who live in an area, per square mile (or kilometer) Country A has an area of 10,000 square miles There are ... – PowerPoint PPT presentation

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Title: Population Density


1
Population Density
2
Population density The number of humans who live
in an area, per square mile (or kilometer)
Country A has an area of 10,000 square miles
There are 1 million people who live in Country A
of people of square miles density
1,000,000 10,000 100 people per square mile
3
BUT WAIT!
  • Not all of an areas land area is inhabitable
    people cant live in some places! (Examples
    Deserts, water, ice caps, etc)

4
  • The Earth has a total area of 197 million square
    miles, and a population of about 7 billion. This
    equals about 36 people per square mile.

5
  • If we only use the LAND area of Earth (take away
    the oceans), we come up with 117 people per
    square mile.

6
  • If we then take away Antarctica, where no one
    lives, we come up with 130 people per square
    mile. We could also take away deserts, high
    mountains, etc, the number grows even higher!

7
  • A good example of how this affects people is
    Egypt. It has a land area of 387,000 square
    miles, and about 90 million people. This should
    mean it has 198 people per square mile. But since
    everyone lives crowded along the banks of the
    Nile River, the REAL density is about 7,136
    people per square mile!

8
  • The worlds most densely populated nation is
    Monaco, in Europe. It has 45,781 people per
    square mile. It is also very small (less than one
    square mile in area) but has over 36,000 people.
  • The worlds least densely populated nation is
    Mongolia, in Asia. It has 5 people per square
    mile. It is also large (more than 604,000 square
    miles) but has about 1.5 million people.

9
The United States
  • The USA has an average population density of 87
    people per square mile.

10
  • The densest is New Jersey, with 1,189 people per
    square mile.
  • The least dense is Alaska, with less than 1.5
    people per square mile.

11
New Hampshire 147 people per square mile
Gilsum 52/m2
Keene 620/m2
Roxbury 19/m2
Swanzey 160/m2
Troy 120/m2
Richmond 31/m2
Fitzwilliam 67/m2
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