more females , blue more males than the world average of 1.01 males/females. (2012) Sex ratio by country for total population. Red represents, bluethan the world average of 1.01 males/females. (2012)

more girls , blue more boys than the world average of 1.05males/females. (2012) Sex ratio by country for population aged below 15. Red represents, bluethan the world average of 1.05males/females. (2012)

more women , blue more men than the world average of 0.79 males/females. (2012) Sex ratio by country for population aged above 65. Red represents, bluethan the world average of 0.79 males/females. (2012)

The human sex ratio is the number of males for each female in a population. This is a list of sex ratios by country or region.

Methodology [ edit ]

The table's data is derived from The World Factbook,[1] except when otherwise indicated. It shows the male to female sex ratio as estimated by the United States' Central Intelligence Agency. However, there are differences between the estimates by The World Factbook and numbers reported by the census offices of respective countries. For example, The World Factbook in 2001 reported Switzerland's sex ratio at birth as 1.05,[2] while Switzerland's Federal Office of Statistics in 2011 reported Switzerland's sex ratio at birth as 1.07 per its birth records census data.[3] Similar differences between estimates by "The World Factbook" and census numbers from birth records are known for Sweden, Norway, Ireland, India and Japan.

A ratio above 1, e.g. 1.1, means there are 1.1 males for every 1 female (more males than females). A ratio below 1, e.g. 0.8, means there are 0.8 males for every 1 female (more females than males). A ratio of 1 means there are equal numbers of females and males.[4] The world average for the ratio of males/females is 1.01, which means there are 1.01 males for every female (more males than females).

Countries [ edit ]

Number of males in relation to each female:

See also [ edit ]