A language is a system of sounds, words and grammar that a community uses to communicate, signed or spoken. Where one language ends and another begins is partly a judgement call, so every count of languages depends on whose rules are used.
Key takeaways
- There is no single agreed test for what counts as a language, so counts differ between catalogues.
- This map follows Glottolog and shows 6,722 living languages, 4,008 as areas and 2,714 as points.
- Glottolog treats dialects, languages and families as one kind of unit, a languoid, and sorts them into levels.
- Extinct languages are left off: 1,023 were dropped from Glottolog's list.
How a language is defined
Most people can point to a language: English, Swahili, Navajo. Defining one is harder. A workable description is a system of sounds or signs, words and grammar shared by a community. The trouble starts at the edges. Two ways of speaking can be close enough that people see them as one language, or different enough that they are counted as two, and nothing in the sounds alone settles it.
A common linguistic test is mutual intelligibility: if speakers can readily understand each other without special effort, the varieties are treated as one language [3]. The same source notes problems with it. Understanding comes in degrees, it can run more strongly in one direction than the other, and political and social factors often override it [3]. The phrase "a language is a dialect with an army and navy" is attributed to the linguist Max Weinreich, and it captures the point that status and politics shape the label as well as speech itself [2]. See language vs dialect for that debate.
Catalogues therefore make their own choices and write them down. Glottolog, the catalogue behind this map, calls every dialect, language or family a "languoid" [1] and places each at a level in a tree. The map draws the language level. Other catalogues may split or join some of these, so a total here will not match a total elsewhere (see how many languages are there).
An example from our data
The map shows 6,722 living languages. 4,008 (59.6%) are drawn as areas from published atlases, and 2,714 have no open area map and appear as dots. They fall into 211 named families plus 103 isolates, and are spoken across 237 countries and territories.
Basque shows how the choices work in practice. It is recorded here as a language with the ISO code eus and the Glottocode basq1248, with about about 750,000 speakers (mintzaira.fr, 2016), spoken in Spain and France. Nobody disputes that Basque is a language. The boundary questions arise elsewhere, for example among the many Arabic and Chinese varieties that Glottolog lists as separate languages, such as Egyptian Arabic and Wu Chinese.
Extinct languages are not on the map: 1,023 were dropped from Glottolog's list. The map also has no data on sign-language areas as such.
The thing people get wrong
People often assume there is one official list of the world's languages, and that a language is whatever has a name, a flag or a writing system. There is no such list. Whether a variety counts as a language depends on the criteria used, and those criteria include history and identity as well as how the speech sounds [2][3]. Unwritten languages are as much languages as written ones, and a language does not need a country to count as one.
A second mistake is to read each coloured shape as a hard border. The areas are generalisations from Asher and Moseley 2007 and other atlases, and they overlap. They show where a language has traditionally been spoken, not that everyone there speaks it. The homepage explains this in how to read the map and why areas overlap.
Frequently asked questions
Is a sign language a language?
Yes. Sign languages have their own vocabulary and grammar. This map has no data on sign-language areas, so they do not appear on it.
Why do different sources give different numbers of languages?
Because the line between a language and a dialect can be drawn in different places. A catalogue that splits more finely counts more languages.
Which list of languages does this map use?
Glottolog. It shows 6,722 living languages, retrieved 13 October 2026.
Sources
- Glottolog glossary, Glottolog.
- Dialect, Wikipedia.
- Mutual intelligibility, Wikipedia.
- Every figure from our own map is worked out from the datasets on the data sources page (checked against Glottolog and Glottography, retrieved 13 October 2026).