Nationality	People	Share
Russians	322,932	52.51%
Mari people	246,560	40.09%
Tatars	29,317	4.77%
Chuvash people	3,656	0.59%
Ukrainians	1,501	0.24%
Udmurts	1,348	0.22%
Uzbeks	751	0.12%
Armenians	728	0.12%
Azerbaijanis	707	0.11%
Tajiks	622	0.10%
Mordvins	423	0.07%
Belarusians	410	0.07%
Indians	396	0.06%
Turkmens	329	0.05%
Bashkir people	193	0.03%
Germans	187	0.03%
Moldovans	179	0.03%
Georgians	167	0.03%
Romani people	160	0.03%
Kazakhs	121	0.02%
Jewish people	111	0.02%
Avars	107	0.02%
Arabs	106	0.02%
Chechens	85	0.01%
Lezgins	69	0.01%
Komi people	66	0.01%
Kyrgyz people	65	0.01%
Poles	35	less than 0.01%
Greeks	33	less than 0.01%
Ossetians	33	less than 0.01%
Koreans	32	less than 0.01%
Dargins	31	less than 0.01%
Gagauz	30	less than 0.01%
Bulgarians	21	less than 0.01%
Komi-Permyaks	21	less than 0.01%
Lithuanians	21	less than 0.01%
Crimean Tatars	18	less than 0.01%
Latvians	17	less than 0.01%
Turkish people	17	less than 0.01%
Karakalpaks	16	less than 0.01%
Mansi people	12	less than 0.01%
Lak people	11	less than 0.01%
Yakuts	11	less than 0.01%
Buryats	10	less than 0.01%
Kumyk people	10	less than 0.01%
Circassians	9	less than 0.01%
Chinese people	8	less than 0.01%
Nenets	8	less than 0.01%
Tsakhur people	8	less than 0.01%
Abkhazians	7	less than 0.01%
Karelians	7	less than 0.01%
Nogais	7	less than 0.01%
Tabasaran people	7	less than 0.01%
French	7	less than 0.01%
Khanty people	6	less than 0.01%
Adyghe people	5	less than 0.01%
Ingush people	5	less than 0.01%
Kabarday	5	less than 0.01%
Pamiris	5	less than 0.01%
Persians	5	less than 0.01%
Rusyns	5	less than 0.01%
Chukchis	5	less than 0.01%
British	4	less than 0.01%
Vepsians	4	less than 0.01%
Vietnamese people	4	less than 0.01%
Spaniards	4	less than 0.01%
Italians	4	less than 0.01%
Kalmyks	4	less than 0.01%
Serbs	4	less than 0.01%
Finns	4	less than 0.01%
Evenki people	4	less than 0.01%
Estonians	4	less than 0.01%
Afghans	3	less than 0.01%
Tuvans	3	less than 0.01%
Uyghurs	3	less than 0.01%
Czechs	3	less than 0.01%
Evens	3	less than 0.01%
Japanese people	3	less than 0.01%
Abazins	2	less than 0.01%
Americans	2	less than 0.01%
Cubans	2	less than 0.01%
Kurds	2	less than 0.01%
Nağaybäk	2	less than 0.01%
Pakistanis	2	less than 0.01%
Romanians	2	less than 0.01%
Talysh people	2	less than 0.01%
Croats	2	less than 0.01%
Aghul people	1	less than 0.01%
Balkars	1	less than 0.01%
Hungarians	1	less than 0.01%
Crimean Karaites	1	less than 0.01%
Karachays	1	less than 0.01%
Mongols	1	less than 0.01%
Nanai	1	less than 0.01%
Rutulians	1	less than 0.01%
Slovenes	1	less than 0.01%
Meskhetian Turks	1	less than 0.01%
Central Asian Roma	1	less than 0.01%
Shors	1	less than 0.01%

Share of those in the region who stated a nationality. Table sheet: "Республика Марий Эл".

Rosstat. National composition of the population of the Russian Federation. Results of the 2020 All-Russian Population Census (reference date 1 October 2021), vol. 5, table 1. Tom5_tab1_VPN-2020.xlsx (archived copy)