Rorschacherberg is a municipality in the Wahlkreis (constituency) of Rorschach in the canton of St. Gallen in Switzerland.

Of the rest of the land, 27.2% is settled (buildings or roads) and the remainder (0.4%) is non-productive (rivers or lakes).

Of the foreign population, (as of 2000[update]), 172 are from Germany, 303 are from Italy, 379 are from ex-Yugoslavia, 118 are from Austria, 163 are from Turkey, and 244 are from another country.

[8] The age distribution, as of 2000[update], in Rorschacherberg is; 766 children or 11.8% of the population are between 0 and 9 years old and 853 teenagers or 13.2% are between 10 and 19.

[4] Out of the total population in Rorschacherberg, as of 2000[update], the highest education level completed by 1,553 people (24.0% of the population) was Primary, while 2,541 (39.2%) have completed their secondary education, 753 (11.6%) have attended a Tertiary school, and 207 (3.2%) are not in school.

[11] From the 2000 census[update], 3,122 or 48.2% are Roman Catholic, while 1,974 or 30.4% belonged to the Swiss Reformed Church.

[8] The Schlosslandschaft Rorschach / Alter Rhein, a number of castles in a region along the Rhine river, is designated as part of the Inventory of Swiss Heritage Sites.

The Schlosslandschaft is shared between Berg, Goldach, Mörschwil, Rheineck, Rorschacherberg, St. Margrethen, Steinach, Thal and Tübach.