Capital

Vereinigte Republik Tansania

name: Dodoma; note - Dodoma was designated the national capital in 1996; Dar es Salaam, the original national capital, is the country's largest city and commercial center 

geographic coordinates: 6 48 S, 39 17 E

time difference: UTC+3 (8 hours ahead of Washington, DC, during Standard Time)

etymology: Dodoma, in the native Gogo language, means "it has sunk"; supposedly, one day during the rainy season, an elephant drowned in the area; the villagers in that place were so struck by what had occurred, that ever since the locale has been referred to as the place where "it (the elephant) sunk"

Nigeria

name: Abuja

geographic coordinates: 9 05 N, 7 32 E

time difference: UTC+1 (6 hours ahead of Washington, DC, during Standard Time)

etymology: Abuja is a planned capital city, it replaced Lagos in 1991; situated in the center of the country, Abuja takes its name from a nearby town, now renamed Suleja

Andorra

name: Andorra la Vella

geographic coordinates: 42 30 N, 1 31 E

time difference: UTC+1 (6 hours ahead of Washington, DC during Standard Time)

daylight saving time: +1hr, begins last Sunday in March; ends last Sunday in October

etymology: translates as "Andorra the Old" in Catalan

Citizenship

Vereinigte Republik Tansania

citizenship by birth: no

citizenship by descent only: at least one parent must be a citizen of Tanzania; if a child is born abroad, the father must be a citizen of Tanzania

dual citizenship recognized: no

residency requirement for naturalization: 5 years

Nigeria

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

Andorra

citizenship by birth: no

citizenship by descent only: the mother must be an Andorran citizen or the father must have been born in Andorra and both parents maintain permanent residence in Andorra

dual citizenship recognized: no

residency requirement for naturalization: 25 years

Legal system

Vereinigte Republik Tansania

English common law; judicial review of legislative acts limited to matters of interpretation

Nigeria

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

Andorra

mixed legal system of civil and customary law with the influence of canon (religious) law

Suffrage

Vereinigte Republik Tansania

18 years of age; universal

Nigeria

18 years of age; universal

Andorra

18 years of age; universal

Area

Vereinigte Republik Tansania

total: 947,300 sq km

land: 885,800 sq km

water: 61,500 sq km

note: includes the islands of Mafia, Pemba, and Zanzibar

Nigeria

total: 923,768 sq km

land: 910,768 sq km

water: 13,000 sq km

Andorra

total: 468 sq km

land: 468 sq km

water: 0 sq km

Land use

Vereinigte Republik Tansania

agricultural land: 43.7% (2018 est.)

arable land: 14.3% (2018 est.)

permanent crops: 2.3% (2018 est.)

permanent pasture: 27.1% (2018 est.)

forest: 37.3% (2018 est.)

other: 19% (2018 est.)

Nigeria

agricultural land: 78% (2018 est.)

arable land: 37.3% (2018 est.)

permanent crops: 7.4% (2018 est.)

permanent pasture: 33.3% (2018 est.)

forest: 9.5% (2018 est.)

other: 12.5% (2018 est.)

Andorra

agricultural land: 40% (2018 est.)

arable land: 1.7% (2018 est.)

permanent crops: 0% (2018 est.)

permanent pasture: 38.3% (2018 est.)

forest: 34% (2018 est.)

other: 26% (2018 est.)

Location

Vereinigte Republik Tansania

Eastern Africa, bordering the Indian Ocean, between Kenya and Mozambique

Nigeria

Western Africa, bordering the Gulf of Guinea, between Benin and Cameroon

Andorra

Southwestern Europe, Pyrenees mountains, on the border between France and Spain

Age structure

Vereinigte Republik Tansania

0-14 years: 41.5% (male 13,765,789/female 13,475,555)

15-64 years: 55.15% (male 18,076,988/female 18,123,677)

65 years and over: 3.35% (2023 est.) (male 933,786/female 1,266,887)

Nigeria

0-14 years: 40.69% (male 47,978,838/female 45,940,446)

15-64 years: 55.95% (male 64,923,147/female 64,241,948)

65 years and over: 3.36% (2023 est.) (male 3,635,334/female 4,123,030)

Andorra

0-14 years: 12.31% (male 5,426/female 5,096)

15-64 years: 68.17% (male 29,845/female 28,419)

65 years and over: 19.52% (2023 est.) (male 8,471/female 8,211)

Birth rate

Vereinigte Republik Tansania

32.9 births/1,000 population (2023 est.)

Nigeria

34 births/1,000 population (2023 est.)

Andorra

6.9 births/1,000 population (2023 est.)

Death rate

Vereinigte Republik Tansania

5 deaths/1,000 population (2023 est.)

Nigeria

8.5 deaths/1,000 population (2023 est.)

Andorra

8 deaths/1,000 population (2023 est.)

Languages

Vereinigte Republik Tansania

Kiswahili or Swahili (official), Kiunguja (name for Swahili in Zanzibar), English (official, primary language of commerce, administration, and higher education), Arabic (widely spoken in Zanzibar), many local languages; note - Kiswahili (Swahili) is the mother tongue of the Bantu people living in Zanzibar and nearby coastal Tanzania; although Kiswahili is Bantu in structure and origin, its vocabulary draws on a variety of sources including Arabic and English; it has become the lingua franca of central and eastern Africa; the first language of most people is one of the local languages

major-language sample(s):
The World Factbook, Chanzo cha Lazima Kuhusu Habari ya Msingi. (Kiswahili)

The World Factbook, the indispensable source for basic information.

Nigeria

English (official), Hausa, Yoruba, Igbo (Ibo), Fulani, over 500 additional indigenous languages

Andorra

Catalan (official) 35.7%, Castilian 43.2%, Portuguese 17.1%, French 8.9%, English 1.8%, other 5% (2018 est.)

note: data represent mother tongue

Life expectancy at birth

Vereinigte Republik Tansania

total population: 70.5 years (2023 est.)

male: 68.7 years

female: 72.3 years

Nigeria

total population: 61.8 years (2023 est.)

male: 59.9 years

female: 63.8 years

Andorra

total population: 83.6 years (2023 est.)

male: 81.4 years

female: 86 years

Major urban areas - population

Vereinigte Republik Tansania

262,000 Dodoma (legislative capital) (2018), 7.776 million DAR ES SALAAM (administrative capital), 1.311 million Mwanza, 800,000 Zanzibar (2023)

Nigeria

15.946 million Lagos, 4.348 million Kano, 3.875 million Ibadan, 3.840 million ABUJA (capital), 3.480 million Port Harcourt, 1.905 million Benin City (2023)

Andorra

23,000 ANDORRA LA VELLA (capital) (2018)

Median age

Vereinigte Republik Tansania

total: 18.9 years (2023 est.)

male: 18.7 years

female: 19.2 years

Nigeria

total: 19.2 years (2023 est.)

male: 18.9 years

female: 19.4 years

Andorra

total: 48.1 years (2023 est.)

male: 48.1 years

female: 48.1 years

Mother's mean age at first birth

Vereinigte Republik Tansania

19.8 years (2015/16 est.)

note: data represents median age at first birth among women 20-49

Nigeria

20.4 years (2018 est.)

note: data represents median age at first birth among women 25-49

Andorra

32.8 years (2019)

Net migration rate

Vereinigte Republik Tansania

-0.4 migrant(s)/1,000 population (2023 est.)

Nigeria

-0.2 migrant(s)/1,000 population (2023 est.)

Andorra

0 migrant(s)/1,000 population (2023 est.)

Population distribution

Vereinigte Republik Tansania

the largest and most populous East African country; population distribution is extremely uneven, but greater population clusters occur in the northern half of country and along the east coast as shown in this population distribution map

Nigeria

largest population of any African nation; significant population clusters are scattered throughout the country, with the highest density areas being in the south and southwest as shown in this population distribution map

Andorra

population is unevenly distributed and is concentrated in the seven urbanized valleys that make up the country's parishes (political administrative divisions)

Population growth rate

Vereinigte Republik Tansania

2.75% (2023 est.)

Nigeria

2.53% (2023 est.)

Andorra

-0.11% (2023 est.)

Total fertility rate

Vereinigte Republik Tansania

4.33 children born/woman (2023 est.)

Nigeria

4.57 children born/woman (2023 est.)

Andorra

1.46 children born/woman (2023 est.)

Urbanization

Vereinigte Republik Tansania

urban population: 37.4% of total population (2023)

rate of urbanization: 4.89% annual rate of change (2020-25 est.)

Nigeria

urban population: 54.3% of total population (2023)

rate of urbanization: 3.92% annual rate of change (2020-25 est.)

Andorra

urban population: 87.8% of total population (2023)

rate of urbanization: 0.11% annual rate of change (2020-25 est.)

Education expenditures

Vereinigte Republik Tansania

3.3% of GDP (2021 est.)

Nigeria

0.5% of GDP (2013)

Andorra

2.9% of GDP (2021 est.)

School life expectancy (primary to tertiary education)

Vereinigte Republik Tansania

total: 9 years

male: 9 years

female: 9 years (2021)

Budget surplus (+) or deficit (-)

Vereinigte Republik Tansania

-1.8% (of GDP) (2017 est.)

Nigeria

-1.8% (of GDP) (2017 est.)

Andorra

-6.9% (of GDP) (2016)

Industrial production growth rate

Vereinigte Republik Tansania

6.5% (2021 est.)

Nigeria

-0.47% (2021 est.)

Andorra

-3.9% (2020 est.) NA

Labor force

Vereinigte Republik Tansania

29.863 million (2021 est.)

Nigeria

65.116 million (2021 est.)

Andorra

39,750 (2016)

Population below poverty line

Vereinigte Republik Tansania

26.4% (2017 est.)

Nigeria

40.1% (2018 est.)

Unemployment rate

Vereinigte Republik Tansania

2.65% (2021 est.)

2.53% (2020 est.)

2.22% (2019 est.)

Nigeria

9.79% (2021 est.)

9.71% (2020 est.)

8.53% (2019 est.)

Andorra

3.7% (2016 est.)

4.1% (2015 est.)

Public debt

Vereinigte Republik Tansania

37% of GDP (2017 est.)

38% of GDP (2016 est.)

Nigeria

21.8% of GDP (2017 est.)

19.6% of GDP (2016 est.)

Andorra

41% of GDP (2014 est.)

41.4% of GDP (2013 est.)

Inflation rate (consumer prices)

Vereinigte Republik Tansania

3.69% (2021 est.)

3.29% (2020 est.)

3.46% (2019 est.)

Nigeria

16.95% (2021 est.)

13.25% (2020 est.)

11.4% (2019 est.)

Andorra

-0.9% (2015 est.)

-0.1% (2014 est.)

Exports

Vereinigte Republik Tansania

$8.555 billion (2020 est.) note: data are in current year dollars

$9.659 billion (2019 est.) note: data are in current year dollars

$8.307 billion (2018 est.)

Nigeria

$50.856 billion (2021 est.) note: data are in current year dollars

$39.937 billion (2020 est.) note: data are in current year dollars

$69.927 billion (2019 est.) note: data are in current year dollars

Andorra

$1.842 billion (2020 est.)

$2.335 billion (2019 est.)

note: Data are in current year dollars and do not include illicit exports or re-exports.

Exports - partners

Vereinigte Republik Tansania

India 15%, United Arab Emirates 15%, Switzerland 14%, Uganda 12%, China 7% (2020)

Nigeria

India 16%, Spain 12%, United States 6%, France 6%, China 5% (2021)

Andorra

Spain 40%, France 19%, United States 11%, Mauritania 5% (2019)

Imports

Vereinigte Republik Tansania

$9.181 billion (2020 est.) note: data are in current year dollars

$10.576 billion (2019 est.) note: data are in current year dollars

$10.399 billion (2018 est.)

Nigeria

$66.107 billion (2021 est.) note: data are in current year dollars

$72.178 billion (2020 est.) note: data are in current year dollars

$100.82 billion (2019 est.) note: data are in current year dollars

Andorra

$1.727 billion (2020 est.)

$2.032 billion (2019 est.)

Imports - partners

Vereinigte Republik Tansania

China 34%, Democratic Republic of the Congo 14%, India 12%, United Arab Emirates 6%, South Africa 3% (2020)

Nigeria

China 36%, India 8%, Netherlands 7%, United States 7%, Belgium 4% (2021)

Andorra

Spain 71%, France 17% (2019)

Airports

Vereinigte Republik Tansania

166 (2021)

Nigeria

54 (2021)

Broadband - fixed subscriptions

Vereinigte Republik Tansania

total: 1,135,608 (2020 est.)

subscriptions per 100 inhabitants: 2 (2020 est.)

Nigeria

total: 65,313 (2020 est.)

subscriptions per 100 inhabitants: 0.03 (2020 est.)

Andorra

total: 37,000 (2020 est.)

subscriptions per 100 inhabitants: 48 (2020 est.)

Internet users

Vereinigte Republik Tansania

total: 20.48 million (2021 est.)

percent of population: 32% (2021 est.)

Nigeria

total: 115.5 million (2021 est.)

percent of population: 55% (2021 est.)

Andorra

total: 74,260 (2021 est.)

percent of population: 94% (2021 est.)

Railways

Vereinigte Republik Tansania

total: 4,097 km (2022)

standard gauge: 421 km (2022)

narrow gauge: 969 km (2022) 1.067 m gauge

broad gauge: 2,707 km (2022) 1.000 m guage

Nigeria

total: 3,798 km (2014)

standard gauge: 293 km (2014) 1.435-m gauge

narrow gauge: 3,505 km (2014) 1.067-m gauge

note: as of the end of 2018, there were only six operational locomotives in Nigeria primarily used for passenger service; the majority of the rail lines are in a severe state of disrepair and need to be replaced

Roadways

Vereinigte Republik Tansania

total: 145,203 km (2022)

paved: 11,201 km (2022)

unpaved: 134,002 km (2022)

Nigeria

total: 195,000 km (2017)

paved: 60,000 km (2017)

unpaved: 135,000 km (2017)

Andorra

total: 320 km (2019)

Telephones - fixed lines

Vereinigte Republik Tansania

total subscriptions: 72,000 (2021 est.)

subscriptions per 100 inhabitants: (2021 est.) less than 1

Nigeria

total subscriptions: 106,385 (2021 est.)

subscriptions per 100 inhabitants: (2021 est.) less than 1

Andorra

total subscriptions: 50,000 (2021 est.)

subscriptions per 100 inhabitants: 63 (2021 est.)

Telephones - mobile cellular

Vereinigte Republik Tansania

total subscriptions: 54 million (2021 est.)

subscriptions per 100 inhabitants: 85 (2021 est.)

Nigeria

total subscriptions: 195,128,265 (2021 est.)

subscriptions per 100 inhabitants: 91 (2021 est.)

Andorra

total subscriptions: 89,000 (2021 est.)

subscriptions per 100 inhabitants: 110 (2021 est.)

Waterways

Vereinigte Republik Tansania

1,594 km (2022) (Lake Tanganyika 673 km, Lake Victoria 337 km, and Lake Nyasa (Lake Malawi) 584 km are the principal avenues of commerce with neighboring countries; the rivers are not navigable)

Nigeria

8,600 km (2011) (Niger and Benue Rivers and smaller rivers and creeks)

Disputes - international

Vereinigte Republik Tansania

Tanzania-Burundi: none identified

Tanzania-Democratic Republic of the Congo: none identified

Tanzania-Kenya: none identified

Tanzania-Malawi: dispute with Malawi over the boundary in Lake Nyasa (Lake Malawi) and the meandering Songwe River; Malawi contends that the entire lake up to the Tanzanian shoreline is its territory, while Tanzania claims the border is in the center of the lake

Tanzania-Mozambique: none identified

Tanzania-Rwanda: none identified

Tanzania-Uganda: none identified

Nigeria

Nigeria-Benin: none identified

Nigeria-Cameroon: Joint Border Commission with Cameroon reviewed 2002 ICJ ruling on the entire boundary and bilaterally resolved differences, including June 2006 Greentree Agreement that immediately ceded sovereignty of the Bakassi Peninsula to Cameroon with a phaseout of Nigerian control within two years while resolving patriation issues; demarcation of the Bakassi Peninsula and adjoining border areas should be finalized in 2022; as Lake Chad’s evaporation exposed dry land, only Nigeria and Cameroon have heeded the Lake Chad Commission's admonition to ratify the delimitation treaty which also includes the Chad-Niger and Niger-Nigeria boundaries

Nigeria-Cameroon-Equatorial Guinea: the ICJ ruled on an equidistance settlement of Cameroon-Equatorial Guinea-Nigeria maritime boundary in the Gulf of Guinea, but imprecisely defined coordinates in the ICJ decision and a sovereignty dispute between Equatorial Guinea and Cameroon over an island at the mouth of the Ntem River all contribute to the delay in implementation

Nigeria-Niger: none identified

Andorra

Andorra-France: none identified

Andorra-Spain: none identified