Rheintal has a population of (as of ). Of the foreign population, (), 1,118 are from
Germany, 1,978 are from
Italy, 6,222 are from ex-
Yugoslavia, 1,684 are from
Austria, 850 are from
Turkey, and 1,925 are from another country. Of the Swiss national languages (), 54,669 speak
German, 146 people speak
French, 1,226 people speak
Italian, and 80 people speak
Romansh. there were 6,996 persons (or 11.3% of the population) who were living alone in a private dwelling. There were 13,031 (or 21.1%) persons who were part of a couple (married or otherwise committed) without children, and 35,575 (or 57.7%) who were part of a couple with children. There were 3,384 (or 5.5%) people who lived in single parent home, while there are 431 persons who were adult children living with one or both parents, 255 persons who lived in a household made up of relatives, 364 who lived household made up of unrelated persons, and 1,608 who are either institutionalized or live in another type of collective housing. From the , 35,215 or 57.1% are
Roman Catholic, while 13,723 or 22.3% belonged to the
Swiss Reformed Church. Of the rest of the population, there are 27 individuals (or about 0.04% of the population) who belong to the
Christian Catholic faith, there are 1,202 individuals (or about 1.95% of the population) who belong to the Orthodox Church, and there are 1,066 individuals (or about 1.73% of the population) who belong to another Christian church. There are 14 individuals (or about 0.02% of the population) who are
Jewish, and 5,155 (or about 8.36% of the population) who are
Islamic. There are 344 individuals (or about 0.56% of the population) who belong to another church (not listed on the census), 2,976 (or about 4.83% of the population) belong to no church, are
agnostic or
atheist, and 1,922 individuals (or about 3.12% of the population) did not answer the question. == Municipalities ==