Country name:
conventional long form: Federal Republic of Nigeria
conventional short form: Nigeria
etymology: named for the Niger River that flows through the west of the country to the Atlantic Ocean; from a native term "Ni Gir" meaning "River Gir"

Government type:
federal presidential republic

Capital:
name: Abuja
geographic coordinates: 9 05 N, 7 32 E
time difference: UTC+1 (6 hours ahead of Washington, DC, during Standard Time)

Administrative divisions:
36 states and 1 territory*; Abia, Adamawa, Akwa Ibom, Anambra, Bauchi, Bayelsa, Benue, Borno, Cross River, Delta, Ebonyi, Edo, Ekiti, Enugu, Federal Capital Territory*, Gombe, Imo, Jigawa, Kaduna, Kano, Katsina, Kebbi, Kogi, Kwara, Lagos, Nasarawa, Niger, Ogun, Ondo, Osun, Oyo, Plateau, Rivers, Sokoto, Taraba, Yobe, Zamfara

Independence:
1 October 1960 (from the UK)

National holiday:
Independence Day (National Day), 1 October (1960)

Constitution:
history: several previous; latest adopted 5 May 1999, effective 29 May 1999
amendments: proposed by the National Assembly; passage requires at least two-thirds majority vote of both houses and approval by the Houses of Assembly of at least two-thirds of the states; amendments to constitutional articles on the creation of a new state, fundamental constitutional rights, or constitution-amending procedures requires at least four-fifths majority vote by both houses of the National Assembly and approval by the Houses of Assembly in at least two-thirds of the states; passage of amendments limited to the creation of a new state require at least two-thirds majority by the proposing National Assembly house and approval by the Houses of Assembly in two-thirds of the states; amended several times, last in 2012 (2017)

Legal system:
mixed legal system of English common law, Islamic law (in 12 northern states), and traditional law

International law organization participation:
accepts compulsory ICJ jurisdiction with reservations; accepts ICCt jurisdiction

Citizenship:
citizenship by birth: no
citizenship by descent only: at least one parent must be a citizen of Nigeria
dual citizenship recognized: yes
residency requirement for naturalization: 15 years

Suffrage:
18 years of age; universal
[see also: Suffrage country ranks ]

Executive branch:
chief of state: President Maj. Gen. (ret.) Muhammadu BUHARI (since 29 May 2015); Vice President Oluyemi "Yemi" OSINBAJO (since 29 May 2015); note - the president is both chief of state and head of government
head of government: President Maj.Gen. (ret.) Muhammadu BUHARI (since 29 May 2015); Vice President Oluyemi "Yemi" OSINBAJO (since 29 May 2015)
cabinet: Federal Executive Council appointed by the president
elections/appointments: president directly elected by 'qualified' majority popular vote and at least 25% of the votes cast in 24 of Nigeria's 36 states; president elected for a 4-year term (eligible for a second term); election last held on 28-29 March 2015 (next to be held on 19 February 2019)
election results: Muhammadu BUHARI elected president; percent of vote - Muhammadu BUHARI (APC) 54%, Goodluck JONATHAN (PDP) 45%, other 1%

Legislative branch:
description: bicameral National Assembly consists of the Senate (109 seats - 3 each for the 36 states and 1 for Abuja; members directly elected in single-seat constituencies by simple majority vote to serve 4-year terms) and the House of Representatives (360 seats; members directly elected in single-seat constituencies by simple majority vote to serve 4-year terms)
elections: Senate - last held on 28-29 March 2015 (next to be held in February 2019); House of Representatives - last held on 28-29 March 2015 (next to be held in 2019)
election results: Senate - percent of vote by party - NA; seats by party - APC 60, PDP 49; House of Representatives - percent of vote by party - NA; seats by party - APC 225, PDP 125, other 10
note: Senate - seats by party as of April 2017 - APC 66, PDP 43 (with continuing defections to the APC)

Judicial branch:
highest court(s): Supreme Court (consists of the chief justice and 15 justices)
judge selection and term of office: judges appointed by the president on the recommendation of the National Judicial Council, a 23-member independent body of federal and state judicial officials; judge appointments confirmed by the Senate; judges serve until age 70
subordinate courts: Court of Appeal; Federal High Court; High Court of the Federal Capital Territory; Sharia Court of Appeal of the Federal Capital Territory; Customary Court of Appeal of the Federal Capital Territory; state court system similar in structure to federal system

Political parties and leaders:
Accord Party or ACC [Mohammad Lawal MALADO] All Progressives Congress or APC [John Odigie OYEGUN] All Progressives Grand Alliance or APGA [Victor C. UMEH] Democratic Peoples Party or DPP [Biodun OGUNBIYI] Labor Party or LP [Alhai Abdulkadir ABDULSALAM] Peoples Democratic Party or PDP [Ali Modu SHERIFF]

Political pressure groups and leaders:
Academic Staff Union for Universities or ASUU Campaign for Democracy or CD Civil Liberties Organization or CLO Committee for the Defense of Human Rights or CDHR Constitutional Right Project or CRP Human Right Africa National Association of Democratic Lawyers or NADL National Association of Nigerian Students or NANS Nigerian Bar Association or NBA Nigerian Labor Congress or NLC Nigerian Medical Association or NMA Universal Defenders of Democracy or UDD
other: media

International organization participation:
ACP, AfDB, AU, C, CD, D-8, ECOWAS, EITI (compliant country), FAO, G-15, G-24, G-77, IAEA, IBRD, ICAO, ICC (national committees), ICCt, ICRM, IDA, IDB, IFAD, IFC, IFRCS, IHO, ILO, IMF, IMO, IMSO, Interpol, IOC, IOM, IPU, ISO, ITSO, ITU, ITUC (NGOs), MIGA, MINURSO, MINUSMA, MONUSCO, NAM, OAS (observer), OIC, OPCW, OPEC, PCA, UN, UNAMID, UNCTAD, UNESCO, UNHCR, UNIDO, UNIFIL, UNISFA, UNITAR, UNMIL, UNMISS, UNOCI, UNWTO, UPU, WCO, WFTU (NGOs), WHO, WIPO, WMO, WTO

Diplomatic representation in the US:
chief of mission: Ambassador Sylvanus Adiewere NSOFOR (since 29 November 2017)
chancery: 3519 International Court NW, Washington, DC 20008
telephone: [1] (202) 986-8400
FAX: [1] (202) 362-6541
consulate(s) general: Atlanta, New York

Diplomatic representation from the US:
chief of mission: Ambassador W. Stuart SYMINGTON (since 1 December 2016)
embassy: Plot 1075 Diplomatic Drive, Central District Area, Abuja
mailing address: P. O. Box 5760, Garki, Abuja
telephone: [234] (9) 461-4000
FAX: [234] (9) 461-4036
consulate(s): Lagos

Flag description:
three equal vertical bands of green (hoist side), white, and green; the color green represents the forests and abundant natural wealth of the country, white stands for peace and unity

National symbol(s):
eagle; national colors: green, white

National anthem:
name: "Arise Oh Compatriots, Nigeria's Call Obey"
lyrics/music: John A. ILECHUKWU, Eme Etim AKPAN, B. A. OGUNNAIKE, Sotu OMOIGUI and P. O. ADERIBIGBE/Benedict Elide ODIASE
note: adopted 1978; lyrics are a mixture of the five top entries in a national contest