Estimated first languages are counted across 1,361 languages.
Registered foreigners estimated to speak Vietnamese as a first language number 251,593, which is 18.67% of all language demand and the largest. It is among the top 20 languages in 250 districts, and the largest counts are Gyeongsan-si (6,456), Hwaseong-si (6,098), Gimhae-si (5,446). Of this demand, 99.7% of this demand comes from Vietnamese nationality, and the nationalities counted number 11 in all. This figure is an estimate calculated by applying Ethnologue mother-tongue shares to the nationality composition of registered foreigners; Korean is excluded.
Source: Open dataset, MOJ Statistical Yearbook on Immigration and Foreign Policy.
Note: The first-language shares come from Ethnologue.
| Rank | Language | Estimated count | Share |
|---|
Source: Open dataset.
Note: An estimate from applying Ethnologue first-language shares to the nationality composition of registered foreigners. Korean is not counted.
Source: Open dataset.
Note: The nationality composition changes each year, so this line follows the movement of those nationality populations.
| Year | Estimated count | Share of all language demand | Rank |
|---|
| Rank | Nationality | Estimated count | Share of this language's demand |
|---|
Source: Open dataset, MOJ Statistical Yearbook on Immigration and Foreign Policy.
Note: The figure multiplies registered foreigners of that nationality by the Ethnologue first-language shares, so one nationality is split across several languages.
Source: Open dataset.
Note: Vietnamese is among the top 20 languages in 250 districts.
| Rank | District | Province | Estimated count | |
|---|---|---|---|---|
| 1 | Gyeongsan-si | Gyeongsangbuk-do | 6,456 | |
| 2 | Hwaseong-si | Gyeonggi-do | 6,098 | |
| 3 | Gimhae-si | Gyeongsangnam-do | 5,446 | |
| 4 | Dalseo-gu | Daegu | 4,942 | |
| 5 | Siheung-si | Gyeonggi-do | 4,922 | |
| 6 | Cheonan-si Seobuk-gu | Chungcheongnam-do | 4,815 | |
| 7 | Gwangsan-gu | Gwangju | 3,975 | |
| 8 | Geoje-si | Gyeongsangnam-do | 3,503 | |
| 9 | Dongdaemun-gu | Seoul | 3,282 | |
| 10 | Pyeongtaek-si | Gyeonggi-do | 3,077 | |
| 11 | Gyeongju-si | Gyeongsangbuk-do | 2,940 | |
| 12 | Yuseong-gu | Daejeon | 2,842 |
| Rank | Province | Estimated count | Share of this language's demand |
|---|
Source: Open dataset.
Note: Only the top 20 languages are counted in each district, so for languages further down the list the province totals can be smaller than the true figure.
The number of registered foreigners of each nationality multiplied by that nationality's mother-tongue shares, then summed. The shares come from Ethnologue. These are not counts of interpretation actually requested, and cases where one person uses two languages or uses Korean cannot be separated out.
District values cover only the top 20 languages in each district, so lower-ranked languages among the 1,361 languages nationwide have empty district columns.