Across the world the average age at which mothers give birth to their first child varies from 18 to slightly above 30. The general trend is that mothers in more socially liberal countries have children later while those in poorer countries have children early on.

Other relevant factors in each country likely include how accessible the work place is to women, and how much independence women have in their society.

Data Sources: CIA World Factbook, UNICEF, China Sixth Nationwide Census
Country Age in Years
Greece 31.20
Australia 30.50
South Korea 30.30
Japan 30.30
Italy 30.30
Switzerland 30.20
Luxembourg 30.20
Singapore 29.80
Spain 29.80
Ireland 29.80
Hong Kong 29.80
Netherlands 29.40
Germany 29.20
Portugal 29.20
Denmark 29.10
Sweden 28.90
Slovenia 28.80
Cyprus 28.50
Austria 28.50
Norway 28.50
Finland 28.40
Hungary 28.30
Canada 28.10
France 28.10
Belgium 28.00
Croatia 27.90
Slovakia 27.80
New Zealand 27.80
United Kingdom 27.80
Czech Republic 27.80
Serbia 27.50
Israel 27.30
Iceland 27.00
Poland 26.90
Malta 26.90
Lithuania 26.70
Latvia 26.40
Estonia 26.40
Montenegro 26.30
Bulgaria 26.30
Bosnia and Herzegovina 26.30
China 26.24
Macedonia 26.20
Romania 26.00
Ukraine 25.80
Sri Lanka 25.40
United States of America 25.40
Morocco 25.40
Belarus 25.10
Kazakhstan 25.00
Tonga 24.90
Jordan 24.70
Turkmenistan 24.60
Russia 24.60
Comoros 24.60
Georgia 24.00
Maldives 23.90
Uzbekistan 23.80
Moldova 23.70
Chile 23.70
Samoa 23.60
Armenia 23.50
Tuvalu 23.50
Azerbaijan 23.40
Pakistan 23.40
Albania 23.40
Thailand 23.30
Philippines 23.10
Kiribati 23.10
Rwanda 22.90
Paraguay 22.90
Egypt 22.90
Indonesia 22.80
Burma 22.80
Cambodia 22.80
Tajikistan 22.80
Haiti 22.70
Vietnam 22.60
Kyrgyzstan 22.60
South Africa 22.50
Turkey 22.30
Peru 22.20
Timor-Leste 22.10
Nauru 22.10
Brazil 22
Mongolia 21.90
Mauritania 21.90
Ghana 21.80
Solomon Islands 21.60
Colombia 21.40
Senegal 21.40
Namibia 21.40
Mexico 21.30
Burundi 21.30
Lesotho 21.20
Bolivia 21.20
Jamaica 21.20
Ecuador 21.10
Guyana 20.80
El Salvador 20.80
Marshall Islands 20.70
Eritrea 20.60
Zimbabwe 20.50
Honduras 20.40
Guatemala 20.30
Gabon 20.30
Dominican Republic 20.30
Benin 20.30
Nigeria 20.30
Congo, Democratic Republic of the 20.20
Nepal 20.10
Afghanistan 20.10
West Bank 20.00
India 19.90
Congo, Republic of the 19.80
Kenya 19.80
Cote d'Ivoire 19.80
Cameroon 19.70
Nicaragua 19.70
Ethiopia 19.60
Tanzania 19.60
Swaziland 19.50
Madagascar 19.50
Cabo Verde 19.50
Burkina Faso 19.40
Sao Tome and Principe 19.40
Zambia 19.20
Sierra Leone 19.00
Botswana 19.00
Gaza Strip 19.00
Liberia 19.00
Malawi 18.90
Mozambique 18.90
Uganda 18.90
Guinea 18.90
Mali 18.60
Chad 18.20
Niger 18.10
Bangladesh 18.10
Angola 18.00