Guinea-Bissau: linguistic neighbours

Shares an official language with 7 countries; closest tie Cameroon.

Data as of 1 Nov 2026 · 195 partner countries · CLDR 49, Glottolog 5.3, States sheet · USITC DICL v2

Country

Who shares a language with Guinea-Bissau

Shared-language index of every country with Guinea-Bissau; the legend is the key.

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Small territories are not drawn at this scale.

Nearest

The countries whose people can talk most easily with Guinea-Bissau's.

How this is measured

Shared language is the common spoken language index from the USITC DICL: the sum over languages of the share of people in Guinea-Bissau who speak it times the share in the other country, native or acquired. It is not a probability and can exceed 1, because the shares overlap. Proximity measures how close different native languages sit on the language tree, so it is low for same-language pairs and highest for related-but-different languages. Countries under 1 million residents are left out of both boards.

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Cameroon

29.4M residents

0.17

Gabon

2.5M residents

0.16

France

69.1M residents

0.15

Portugal

Official language in common · 11.4M residents

0.15

Congo DR

116.5M residents

0.13

Mauritius

1.2M residents

0.12

Congo

6.1M residents

0.12

Belgium

11.9M residents

0.12

Switzerland

9.1M residents

0.11

Brazil

Official language in common · 213.4M residents

0.11

#						Pairs
1	Cameroon	0.17	—	0.18	29.4M	pairs
2	Gabon	0.16	—	0.18	2.5M	pairs
3	France	0.15	—	0.01	69.1M	pairs
4	Portugal	0.15	yes	0.01	11.4M	pairs
5	Congo DR	0.13	—	0.16	116.5M	pairs
6	Mauritius	0.12	—	0.06	1.2M	pairs
7	Congo	0.12	—	0.14	6.1M	pairs
8	Belgium	0.12	—	0.01	11.9M	pairs
9	Switzerland	0.11	—	0.01	9.1M	pairs
10	Brazil	0.11	yes	0.00	213.4M	pairs
11	Senegal	0.10	—	0.38	19.1M	pairs
12	Haiti	0.10	—	0.07	11.9M	pairs
13	Togo	0.10	—	0.22	8.1M	pairs
14	Côte d'Ivoire	0.09	—	0.19	32.5M	pairs
15	Gambia	0.09	—	0.25	2.4M	pairs
16	Djibouti	0.09	—	0.00	1.1M	pairs
17	Tunisia	0.09	—	0.00	12.0M	pairs
18	Algeria	0.09	—	0.00	47.4M	pairs
19	Angola	0.08	yes	0.10	38.8M	pairs
20	Canada	0.07	—	0.00	41.4M	pairs

Farthest

The countries with the least language in common with Guinea-Bissau.

How this is measured

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South Sudan

15.8M residents

0.00

Panama

4.1M residents

0.00

Belarus

9.1M residents

0.00

Costa Rica

5.2M residents

0.00

Cuba

9.7M residents

0.00

Nicaragua

6.9M residents

0.00

El Salvador

6.0M residents

0.00

Ukraine

28.7M residents

0.00

Ecuador

18.1M residents

0.00

Honduras

10.2M residents

0.00

#					Pairs
1	South Sudan	—	0.02	15.8M	pairs
2	Panama	—	0.01	4.1M	pairs
3	Belarus	—	0.01	9.1M	pairs
4	Costa Rica	—	0.01	5.2M	pairs
5	Cuba	—	0.01	9.7M	pairs
6	Nicaragua	—	0.01	6.9M	pairs
7	El Salvador	—	0.01	6.0M	pairs
8	Ukraine	—	0.01	28.7M	pairs
9	Ecuador	—	0.01	18.1M	pairs
10	Honduras	—	0.01	10.2M	pairs
11	Bangladesh	—	0.01	169.8M	pairs
12	Peru	—	0.01	34.2M	pairs
13	Bolivia	—	0.00	11.4M	pairs
14	Guatemala	—	0.00	18.3M	pairs
15	Iran	—	0.00	87.1M	pairs
16	Indonesia	—	0.00	288.3M	pairs
17	Saudi Arabia	—	0.00	35.3M	pairs
18	Georgia	—	0.00	3.9M	pairs
19	Kyrgyzstan	—	0.00	7.4M	pairs
20	Turkmenistan	—	0.00	7.1M	pairs

Where these numbers come from

Pair figures come from the USITC Dynamic International Country Linguistics database, version 2 (CC BY 4.0). See Method.

Unicode CLDR territoryInfo (release 49) (Unicode License v3). Country-level language shares, official status and Tier 3 reach (populationPercent is total speakers, first plus second language).
Glottolog 5.3 (CC BY 4.0). Language names, ISO 639-3 codes, families.
Database of International and Intranational Linguistic distances (DICL v2), USITC (CC BY 4.0). Country-pair common spoken language and linguistic proximity (neighbours, linked-world score, pairs pages).
States (ISO 3166-2) sheet, MetroAreas workbook (Citizen of Nowhere, own compilation). States, populations and the four language labels per state.
Natural Earth 1:110m Admin 0 Countries (nvkelso/natural-earth-vector) (Public domain). World outline for the language maps (world-110m.geojson, properties reduced to iso3 and name).
Country layer of this site (countries.json workbook population, World Bank iso2 and iso3, OWID country-population) (Citizen of Nowhere, own compilation; World Bank CC BY 4.0; OWID CC BY). Country population, iso2 and /countries slug joined onto languages, countries and families (speakers = share x population).