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Registered foreigners are counted across 192 nationalities.

Marshall Islands

People registered with Marshall Islands nationality number 9, which is less than 0.1% of all registered foreigners and ranks 168 in size. Compared with 2 in 2015, 10 years earlier, that is an increase of about 350%. They live in 4 districts, and the largest counts are Seoul Jung-gu with 5, Seoul Yongsan-gu with 2, and Gyeonggi-do Gimpo-si with 1. The largest age group is 45-49 at 18.5%, and men are 66.7%. This value alone is based on staying foreigners. Estimated mother tongues are Marshallese at 92.7% and English at 7.3%.

Source: MOJ Statistical Yearbook on Immigration and Foreign Policy 2025 (registered foreigners by nationality, registered foreigners by nationality and district, registered foreigners by status of stay), staying foreigners by nationality and age

The index of dissimilarity, the isolation index, and the location quotient are calculated from the open dataset.

Table 1.Key indicators and benchmarks, 2025Unit: people, organizations, index
2025
IndicatorsMarshall IslandsAll registered foreignersRelative to total
Registered foreigners91,604,920under 0.1% of the total
Districts of residence42501.6% of the total
Index of dissimilarity (D)-0.280-
Isolation index-0.045-
Interaction with Koreans-0.955-
Continent---

Source: MOJ Statistical Yearbook (registered foreigners by nationality), segregation indicators from the open dataset.

Note: the dissimilarity index D measures how far a nationality's distribution across districts differs from that of Korean nationals; 0 means the two distributions match and 1 means complete separation. Isolation is the probability that a member meets someone of the same nationality, and interaction the probability of meeting a Korean resident. In the All registered foreigners column the three indices treat all registered foreigners as one group and use the same formulas. In the Relative to total column, rank 1 is the highest value among nationalities with 100 or more registered foreigners that year; in the continent row that column gives this nationality's share of all registered foreigners from the continent.

Figure 1.Marshall Islands nationals among registered foreigners, 2006–2025Unit: 10,000 persons

Source: MOJ Statistical Yearbook, each year.

Note: The vertical scale resets to the size of the selected nationality.

View as table
YearMarshall IslandsVietnam
2006052,157
2007067,197
2008079,848
2009086,166
2010098,225
20110110,564
20120114,211
20130113,843
20142122,571
20152128,042
20160137,769
20170151,385
20180170,707
20190187,334
20200181,415
20211178,928
20227196,883
20238227,930
20248261,581
20259293,907
Table 2.Marshall Islands nationality, top 10 districts, 2025Unit: persons, %
2025
RankDistrictMarshall Islands NationalityShare of local foreigners
1Seoul Jung-gu50.0
2Seoul Yongsan-gu20.0
3Gyeonggi-do Gimpo-si10.0
4Gyeonggi-do Bucheon-si10.0

Source: MOJ Statistical Yearbook (registered foreigners by district and nationality).

Note: Nationwide, Marshall Islands nationality is 18.3% of all registered foreigners, so a district where the share among its foreigners is above this has relatively many of them.

Table 3.10 districts with the highest location quotient, 2025Unit: people, ratio, %
RankDistrictMarshall Islands NationalityLocation quotient (LQ)Share of local foreigners

Source: Location quotient from the open dataset.

Note: the location quotient is the local share divided by the national share; above 1.5 counts as over-representation.

Table 4.By status of stay Marshall Islands nationality, 2025Unit: persons, %
2025
Visa categoryPersonsShare
Other statuses(ETC)777.8
Corporate Investment(D8)111.1
Marriage Migration(F6)111.1

Source: MOJ Statistical Yearbook (registered foreigners by status of stay and nationality).

Note: The rows of this table add to 9, the whole of the Marshall Islands nationality.

Table 5.Age and sex, 2025Unit: persons, %
2025
Age groupTotalMaleFemaleShare
0-40000.0
5-90000.0
10-142207.4
15-1933011.1
20-242117.4
25-290000.0
30-3431211.1
35-391013.7
40-442117.4
45-4953218.5
50-541103.7
55-5944014.8
60+42214.8

Source: MOJ Statistical Yearbook (staying foreigners by nationality and age).

Only this table counts all foreign residents, so it totals 27 rather than the 9 registered foreigners

Figure 2.Composition by age and sex, 2025Unit: %
2025

Source: MOJ Statistical Yearbook (staying foreigners by nationality and age).

Note: The bar length is the share each cell holds within the whole nationality. This figure alone uses staying foreigners, so its total differs from registered foreigners.

Figure 3.Change in status-of-stay composition, 2021–2025Unit: %

Source: MOJ Statistical Yearbook, each year (registered foreigners by status of stay and nationality).

Note: The share each status holds within this nationality in that year. The five largest statuses in 2025 are drawn.

View as table
Year
20110.00.00.0
20120.00.00.0
20130.00.00.0
20140.00.00.0
20150.00.00.0
20160.00.00.0
20170.00.00.0
20180.00.00.0
20190.00.00.0
20200.00.00.0
2021100.00.00.0
202257.10.00.0
202362.50.012.5
202487.50.012.5
202577.811.111.1
Figure 4.Residential segregation and exposure over time, Unit: index
Indicators

Source: Segregation indicators from the open dataset.

Note: the dissimilarity index D measures how far a nationality's distribution across districts differs from that of Korean nationals, isolation is the probability that a member meets someone of the same nationality, and interaction the probability of meeting a Korean resident. The three run on different ranges, so they are selected one at a time.

View as table
YearIndex of dissimilarity (D)Isolation indexInteraction with Koreans
Table 6.Marshall Islands nationality, mother-tongue compositionUnit: %
First languageShare
Marshallese92.7
English7.3

Source: Ethnologue 24th edition, first-language shares by country.

Note: the estimated demand on the language page is this share multiplied by the registered foreign population of each nationality. Shares below 0.5% are not listed, and a person who speaks more than one language is not distinguished.

Figure 5.By province, Marshall Islands nationality, 2025Unit: persons
2025

Count range

    Note: The boundaries are shapes simplified for display and are drawn as pen lines. The fill values are the provincial totals from the yearbook and do not depend on the shapes.

    Source: MOJ Statistical Yearbook (registered foreigners by nationality and district), summed to the province level.

    View as table
    ProvinceMarshall Islands NationalityShare of national
    Seoul777.8
    Gyeonggi-do222.2