Wittenbach has a population (as of ) of . , about 21.4% of the population was made up of foreign nationals. Of the foreign population, (), 176 are from
Germany, 264 are from
Italy, 829 are from ex-
Yugoslavia, 87 are from
Austria, 115 are from
Turkey, and 322 are from another country. Over the last 10 years the population has grown at a rate of 6.5%. Most of the population () speaks German (87.8%), with Serbo-Croatian being second most common ( 2.8%) and Albanian being third ( 2.5%). Of the Swiss national languages (), 7,448 speak
German, 31 people speak
French, 170 people speak
Italian, and 8 people speak
Romansh. there were 1,076 persons (or 12.7% of the population) who were living alone in a private dwelling. There were 2,113 (or 24.9%) persons who were part of a couple (married or otherwise committed) without children, and 4,414 (or 52.0%) who were part of a couple with children. There were 554 (or 6.5%) people who lived in single parent home, while there are 35 persons who were adult children living with one or both parents, 16 persons who lived in a household made up of relatives, 38 who lived household made up of unrelated persons, and 240 who are either institutionalized or live in another type of collective housing. ==Sights==