Notes on lesson on Introduction to Population and Its State |

Introduction to Population and Its State

After completing this lesson, student must be able to:

  • Measures of mortality and migration.
  • Measures of population change.
  • Describe the demographic components.
  • Define population composition of Nepal.
  • Describe about the population growth rate and world population.
  • Define about components of demography.



Measures of Population Change

Fertility refers to the reproductive function. It is the ability to bear offspring. It is the production of live birth which starts when a women gives the first birth. This note has information about measures of population change.

Measures of Mortality and Migration

Death rate refers to the decrease in the size of population. Migration is another process of demography and deals with the change in the size and composition of the population by migrating from one place to another. This note provides an information about the measures of mortality and migration.

Demographic Components

Population change results from an interaction of demographic components: birth, death and migration. Therefore, demography deals with the detailed study of the three components. This note has information about the demographic components.

Population Composition of Nepal

The population can be studied on the basis of caste, gender, literacy rate, occupation, mother tongue, age, qualification, etc. helps to determine the population of any place. This note provides an information about the composition of population in Nepal.

Distribution of Population in Nepal

The arrangement or spread of people living in a given area; also how the population of an area is arranged according to variables such as age, sex, race, etc. is called distribution of population. This note has information about the distribution of population in Nepal.

Internal and External Migration in Nepal

Internal migration refers to the movement of people within a country.This note has information about the internal and external migration in Nepal.


Demography is the systematic and scientific study of human population primarily with respect to size, structure, distribution and change (development). This note provides an information about demography and its components.

Population Growth Rate and World Population

The world's population has crossed 7 arab in 2011 AD. The population started to increase rapidly since middle of 17th century. This note has information about the state of world's population and population growth rate.