Country rankings

Countries Bordering Only One Other Country

Portugal has the highest Border Length (754), followed by Lesotho (565) and Papua New Guinea (510). Gibraltar has the lowest (1).

Geography25 countries · 5 metricsUpdated Dec 3, 2023Original page
1 source
Border LengthBetter directionWhether a higher or a lower value is better. A green arrow means higher is better, a red arrow means lower is better, and no arrow means neither.More in the glossary →
20 of 235 countries
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Border Length

Darker means higher. Click a place to highlight it.

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All 20 ranked

Highest first.

Distribution Median and middle halfThe median is the middle value: half of places are above it, half below. The middle half is the range holding the central 50% of places.More in the glossary →

Each dot is one country; the lines mark the median and the middle half.

Median
145
Middle half 8.25 – 224.3
Average
189.9
20 countries
Highest
754
Portugal
Lowest
1
Gibraltar

Data

Click a column to sort, a row to highlight that place on the charts.

25 countries · # = rank by Border Length
#
1Portugal—754—Spain—
2LesothoLesotho is an enclave which is entirely surrounded by South Africa.565—South Africa—
3Papua New GuineaOn the island of New Guinea.510—Indonesia—
4GambiaThe Republic of the Gambia is bordered to the north, south and east by Senegal.460—Senegal—
5BruneiBorders the Malaysian state of Sarawak on the island of Borneo.237—Malaysia—
6United KingdomOn the island of Ireland. The British Overseas Territories of Gibraltar and Akrotiri and Dhekelia border Spain and Cyprus respectively, but these territories are not part of the United Kingdom proper.220—Ireland—
6HaitiOn the island of Hispaniola.220—Dominican Republic—
6Dominican RepublicOn the island of Hispaniola.220—Haiti—
6IrelandThe Republic of Ireland borders the United Kingdom's Northern Ireland region on the island of Ireland.220—United Kingdom—
10South KoreaOn the Korean Peninsula, at the Demarcation Line. The two countries are separated by a 4 km wide Demilitarized Zone. Both Koreas claim the Korean Peninsula.148—North Korea—
11Timor-LesteOn the island of Timor.142—Indonesia—
12QatarThe planned Qatar–Bahrain Causeway would connect Qatar to Bahrain.37—Saudi Arabia—
13San MarinoSan Marino is an enclave entirely surrounded by Italy.24—Italy—
14Hong KongHong Kong, comprising a continental portion and more than 200 islands in the South China Sea, was formerly ceded and leased by Qing China to the British Empire. It was returned to the People's Republic of China in 1997, but has since then operated with its own political system…21—ChinaHong Kong
15Saint MartinThe island is split between two island territories: the northern half, Saint-Martin, is a French overseas collectivity; the southern half, Sint Maarten, is a constituent country of the Kingdom of the Netherlands.10—NetherlandsFrance
16Monaco—3—France—
17MacauMacau comprises a peninsula and one island in the South China Sea, 60 km (37 mi) west of Hong Kong, and like Hong Kong was formerly administered by a colonial power (in this case, Portugal) but returned to the People's Republic of China in 1999. It too has its own judicial sys…2—ChinaMacau
17Vatican CityThe Vatican City is an enclave entirely surrounded by Rome, Italy.2—Italy—
19GreenlandA constituent country of the Kingdom of Denmark, Greenland has had a border dispute with Canada regarding uninhabited Hans Island. The island is located in the centre of the Kennedy Channel of Nares Strait (between Canada's Ellesmere Island and northern Greenland), which const…1—CanadaDenmark
19GibraltarA British overseas territory, occupies a small peninsula and has a 1.2 km (0.75 mi) land border with Spain. Spain claims some of Gibraltar as its own territory.1—SpainUnited Kingdom
—DenmarkIn addition to its border with Germany, also has fixed link with Sweden across the Øresund Bridge.—SwedenGermany—
—SingaporeAlthough an island nation with no natural land borders, Singapore maintains persistent connections to Malaysia by the Johor Causeway and the Malaysia–Singapore Second Link.—MalaysiaNone (Singapore is cut off by the Strait of Johor)—
—BahrainAlthough an island nation with no natural land borders, Bahrain maintains persistent connection to Saudi Arabia by the King Fahd Causeway at Passport Island.—Saudi ArabiaNone (Bahrain is an island)—
—Sint MaartenThe island is split between two island territories: the northern half, Saint-Martin, is a French overseas collectivity; the southern half, Sint Maarten, is a constituent country of the Kingdom of the Netherlands.——FranceNetherlands
—LiechtensteinIn addition to its land border with Austria, Liechtenstein has five bridges crossing the river Rhine to Switzerland.—SwitzerlandAustria—

What correlates with Border Length?

Pearson r against 1,042 other country metrics sharing at least 12 countries. Correlation is not causation.

Higher together

Places that have a higher Border Length tend to score higher on these

  1. Land Border Length (km)Land Border Count by Country
    r = +0.98 · very strong · n = 16
    Plot
  2. Land Border Length (mi)Land Border Count by Country
    r = +0.98 · very strong · n = 16
    Plot
  3. Word CountCountries with Constitutions
    r = +0.83 · very strong · n = 12
    Plot
  4. Crude Death Rate Per 1k - UN 2015-2020Death Rate by Country
    r = +0.73 · very strong · n = 13
    Plot
  5. LI Users Aged 18-24LinkedIn Users by Country
    r = +0.72 · very strong · n = 18
    Plot
  6. Crude Death Rate per 1k Population - UN 2020-2025Death Rate by Country
    r = +0.71 · very strong · n = 14
    Plot

Opposite directions

Places that have a higher Border Length tend to score lower on these

  1. Urban Population (%)Development Indicators by Country (World Bank)
    r = −0.70 · very strong · n = 19
    Plot
  2. Other Vegetable Consumption per CapitaVegetable Consumption by Country
    r = −0.64 · strong · n = 12
    Plot
  3. Urban PopulationMost Urbanized Countries
    r = −0.64 · strong · n = 18
    Plot
  4. Total Vegetable Consumption per CapitaVegetable Consumption by Country
    r = −0.61 · strong · n = 12
    Plot
  5. Bulimia Nervosa - FemaleEating Disorders by Country
    r = −0.61 · strong · n = 15
    Plot
  6. Click-Through RateAdsense CPC Rates by Country
    r = −0.61 · strong · n = 12
    Plot

Quick answers

Which country has the highest Border Length?
Portugal has the highest Border Length, at 754, followed by Lesotho (565) and Papua New Guinea (510).
Which country has the lowest Border Length?
Gibraltar has the lowest Border Length, at 1.
What is the median Border Length across countries?
The median is 145 across the 20 countries with data.
Where does this countries bordering only one other country data come from?
Rankodex compiles it from World Population Review and the primary sources it cites: List of countries that border only one other country - Wiki.

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