Inter-Parliamentary Union (IPU)
Postal Address:5 chemin du Pommier,CH-1218 Le Grand-Saconnex, Geneva, Switzerland
Telephone: +41 22 919 4125
Fax: +41 22 919 4160
The proportion of seats held by women in national parliaments is the number of seats held by women members in single or lower chambers of national parliaments, expressed as a percentage of all occupied seats.
National parliaments can be bicameral or unicameral. This indicator covers the single chamber in unicameral parliaments and the lower chamber in bicameral parliaments. It does not cover the upper chamber of bicameral parliaments. Seats are usually won by members in general parliamentary elections. Seats may also be filled by nomination, appointment, indirect election, rotation of members and by-election.
Seats refer to the number of parliamentary mandates, or the number of members of parliament.
The proportion of seats held by women in national parliament is derived by dividing the total number of seats occupied by women by the total number of seats in parliament.
There is no weighting or normalising of statistics.
No adjustments are made for missing values.
Data are available for189 countries.
Information is available in all countries where a national legislature exists and therefore does not include parliaments that have been dissolved or suspended for an indefinite period.
The data are provided by national parliaments and updated after an election or parliamentary renewal. National parliaments also transmit their data to the IPU at least once a year and when the numbers change significantly.
Data are collated and updated on a monthly basis, and are available on the IPU website at
Regional averages are determined by dividing the total number of women members by the total number of seats filled in single or lower chambers of parliament per region.
World average percentage is determined by dividing the total number of women members divided by the total number of seats filled in single or lower chambers in all national parliaments.
Data are updated on a monthly basis, up to the last day of the month.