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Registered foreigners are counted across 192 nationalities.

Tanzania

People registered with Tanzania nationality number 676, which is less than 0.1% of all registered foreigners and ranks 61 in size. Compared with 157 in 2015, 10 years earlier, that is an increase of about 330.6%. They live in 95 districts, and the largest counts are Gyeonggi-do Ansan-si Danwon-gu with 172, Gyeongsangnam-do Geoje-si with 55, and Seoul Yongsan-gu with 45. The index of dissimilarity (D) from Koreans is 0.658, the isolation index is 0, and interaction with Koreans is 0.934. The highest location quotient (LQ) is in Gangwon-do Goseong-gun at 48.1, where this nationality is 0.1% of the foreigners in that district. The continent of origin is Africa. The largest age group is 30-34 at 22.1%, and men are 70.7%. This value alone is based on staying foreigners. Estimated mother tongues are Swahili at 29.4% and Sukuma at 15.9%.

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

Year 2025

Indicators	Tanzania	All registered foreigners	Relative to total
Registered foreigners	676	1,604,920	under 0.1% of the total
Districts of residence	95	250	38.0% of the total
Index of dissimilarity (D)	0.658	0.280	rank 34 of 107
Isolation index	0.0002	0.045	rank 37 of 107
Interaction with Koreans	0.934	0.955	rank 106 of 107
Continent	Africa	24,473 (1.5% of the total)	2.8% of those from Africa

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.Tanzania 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.

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Year	Tanzania	Vietnam
2006	24	52,157
2007	31	67,197
2008	57	79,848
2009	72	86,166
2010	99	98,225
2011	114	110,564
2012	137	114,211
2013	120	113,843
2014	138	122,571
2015	157	128,042
2016	139	137,769
2017	187	151,385
2018	212	170,707
2019	251	187,334
2020	222	181,415
2021	281	178,928
2022	454	196,883
2023	462	227,930
2024	530	261,581
2025	676	293,907

Table 2.Tanzania nationality, top 10 districts, 2025Unit: persons, %

Year 2025

Rank	District	Tanzania Nationality	Share of local foreigners
1	Gyeonggi-do Ansan-si Danwon-gu	172	0.4
2	Gyeongsangnam-do Geoje-si	55	0.3
3	Seoul Yongsan-gu	45	0.3
4	Gyeongsangbuk-do Gyeongsan-si	21	0.1
5	Chungcheongbuk-do Jincheon-gun	21	0.2
6	Gyeonggi-do Pyeongtaek-si	19	0.1
7	Chungcheongnam-do Asan-si	18	0.1
8	Gangwon-do Goseong-gun	17	0.8
9	Gyeongsangbuk-do Gyeongju-si	17	0.1
10	Seoul Seongbuk-gu	17	0.1

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

Note: Nationwide, Tanzania nationals make up 0.0% of all registered foreigners, so an area whose share is above that holds relatively many of them.

Table 3.10 districts with the highest location quotient, 2025Unit: people, ratio, %

Year 2025

Rank	District	Tanzania Nationality	Location quotient (LQ)	Share of local foreigners
1	Gangwon-do Goseong-gun	17	48.1	0.1
2	Gyeonggi-do Ansan-si Danwon-gu	172	45.1	0.1
3	Chungcheongbuk-do Jincheon-gun	21	18.4	0.0
4	Gyeongsangnam-do Geoje-si	55	18.1	0.0
5	Seoul Yongsan-gu	45	16.9	0.0
6	Jeollanam-do Yeongam-gun	5	7.6	0.0
7	Gyeongsangbuk-do Gyeongsan-si	21	6.0	0.0
8	Gyeongsangnam-do Tongyeong-si	9	5.9	0.0
9	Ulsan Buk-gu	16	5.7	0.0
10	Gyeongsangbuk-do Gyeongju-si	17	5.3	0.0

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 Tanzania nationality, 2025Unit: persons, %

Year 2025

Visa category	Persons	Share
Other(G1)	301	44.5
Student(D2)	186	27.5
Other statuses(ETC)	66	9.8
Dependent Family(F3)	25	3.7
Job Seeker(D10)	24	3.6
General Trainee(D4)	23	3.4
Marriage Migration(F6)	11	1.6
Specially Designated Activities(E7)	10	1.5
Other statuses	30	4.4

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

Note: The rows of this table add to 676, the whole of the Tanzania nationality.

Table 5.Age and sex, 2025Unit: persons, %

Year 2025

Age group	Total	Male	Female	Share
0-4	23	12	11	3.2
5-9	15	10	5	2.1
10-14	10	6	4	1.4
15-19	9	3	6	1.2
20-24	57	32	25	7.9
25-29	143	89	54	19.9
30-34	159	124	35	22.1
35-39	121	88	33	16.8
40-44	72	56	16	10.0
45-49	65	49	16	9.0
50-54	27	23	4	3.8
55-59	15	14	1	2.1
60+	4	3	1	0.6

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

Only this table counts all foreign residents, so it totals 720 rather than the 676 registered foreigners

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

Year 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, 2008–2025Unit: %

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.

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Year
2008	1.8	63.2	0.0	15.8	0.0
2009	1.4	56.9	0.0	20.8	0.0
2010	0.0	61.6	1.0	15.2	0.0
2011	0.0	71.9	0.9	8.8	0.0
2012	0.0	63.5	1.5	14.6	0.0
2013	0.0	60.8	1.7	13.3	0.8
2014	1.4	60.9	2.2	12.3	1.4
2015	3.8	59.9	2.5	9.6	4.5
2016	7.2	60.4	2.9	4.3	3.6
2017	20.3	51.9	3.7	5.3	2.1
2018	26.9	47.6	2.4	2.8	3.3
2019	29.5	44.2	2.0	0.0	3.2
2020	27.0	45.9	3.2	0.0	3.6
2021	18.5	46.6	13.9	2.1	3.2
2022	29.5	39.4	9.5	3.7	2.4
2023	29.2	41.1	10.6	4.1	3.5
2024	34.2	32.3	11.7	4.3	3.8
2025	44.5	27.5	9.8	3.7	3.6

Figure 4.Residential segregation and exposure over time, 2014–2025Unit: 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.

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Year	Index of dissimilarity (D)	Interaction with Koreans
2014	0.747	0.966
2015	0.713	0.965
2016	0.680	0.969
2017	0.704	0.957
2018	0.678	0.955
2019	0.681	0.955
2020	0.664	0.962
2021	0.643	0.962
2022	0.677	0.947
2023	0.687	0.946
2024	0.660	0.939
2025	0.658	0.934

Table 6.Tanzania nationality, mother-tongue compositionUnit: %

First language		Share
Swahili		29.4
Sukuma		15.9
Haya		3.8
Makonde		2.9
Nyamwezi		2.9
Ha		2.4
Hehe		2.4
Nyakyusa		2.4

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, Tanzania nationality, 2025Unit: persons

Year 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.

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Province	Tanzania Nationality	Share of national
Gyeonggi-do	230	34.0
Seoul	129	19.1
Gyeongsangnam-do	69	10.2
Gyeongsangbuk-do	45	6.7
Chungcheongbuk-do	30	4.4
Gangwon-do	28	4.1
Ulsan	24	3.6
Chungcheongnam-do	22	3.3
Daejeon	20	3.0
Incheon	17	2.5
Jeollanam-do	13	1.9
Daegu	12	1.8
Busan	11	1.6
Jeju-do	10	1.5
Jeollabuk-do	8	1.2
Gwangju	5	0.7
Sejong	3	0.4