Schwalmstadt is the largest town in the Schwalm-Eder district, in northern Hesse, Germany.

Schwalmstadt lies in the Schwalm region in the western Knüll, a low mountain range.

Besides the core of Treysa, Ziegenhain and Ascherode, the town consists of the centres of Allendorf an der Landsburg, Dittershausen, Florshain, Frankenhain, Michelsberg, Niedergrenzebach, Rommershausen, Rörshain, Trutzhain and Wiera.

Two further church gatherings in May 1946 and June 1947 tried to start discussion about divergent perceptions of the Eucharist, and also dealt with Denazification.

In 1995, with the motto "Hessisch Willkommen", Schwalmstadt hosted the 35th Hessentag state festival.

As of the municipal elections held in 2011, the council seats are apportioned thus: Mayor Wilhelm Kröll (SPD) was re-elected on 7 May 2006 with a share of the vote of 61.4%.

Schwalmstadt's coat of arms bears a keen likeness to both Neukirchen's and Schwarzenborn's.

The local association has, among other things, a technical team (Technischer Zug) with a positioning section (Fachgruppe Ortung).

The Main-Weser railway from Frankfurt to Kassel runs through Schwalmstadt and serves two stations: Treysa and Schwalmstadt-Wiera.