Norfolk Island
18 years of age; universal

Northern Mariana Islands 18 years of age; universal; indigenous inhabitants are US citizens but do not vote in US presidential elections

Norway
18 years of age; universal

Oman
in Oman's most recent elections in 2000, limited to
approximately 175,000 Omanis chosen by the government to vote in
elections for the Majlis al-Shura

Pakistan
18 years of age; universal; joint electorates and reserved
parliamentary seats for women and non-Muslims

Palau
18 years of age; universal

Panama
18 years of age; universal and compulsory

Papua New Guinea
18 years of age; universal

Paraguay
18 years of age; universal and compulsory up to age 75

Peru
18 years of age; universal