Schmerikon is a municipality in the Wahlkreis (constituency) of See-Gaster in the canton of St. Gallen in Switzerland.

Of the rest of the land, 27% is settled (buildings or roads) and the remainder (11.1%) is non-productive (rivers or lakes).

[4] The blazon of the municipal coat of arms is Gules two Crescents addorsed Or and in chief a Cross pattee Argent.

Of the foreign population, (as of 2000[update]), 22 are from Germany, 239 are from Italy, 363 are from ex-Yugoslavia, 17 are from Austria, 140 are from Turkey, and 97 are from another country.

Both trains run hourly, combining to provide a half-hourly service to Rapperswil.

The two main supermarkets are both located a 5-minute walk away from the train station, which is also the town centre.

[8] The village of Schmerikon is designated as part of the Inventory of Swiss Heritage Sites.

[14] There are 2 B-class objects of cultural property protected by Hague Convention for the Protection of Cultural Property in the Event of Armed Conflict: Haus zum Hirzen from 17th century[15] and catholic church of St. Jodokus with a tower from 1500.

[16] Schmerikoner Ried, a reed located on the northeastern lake shore in the Linthebene area towards the Grynau Castle, was set under federal protection as a low-moor bog of national importance (German: Bundesinventar der Flachmoore von nationaler Bedeutung) in 1994.

[17] Thanks to its location along the lake Obersee, Schmerikon is popular weekend destination for cyclists and hikers.