|Population (1 January 2006)||3,570|
Until 1991, Sint Odiliënberg was a separate municipality. Since then it has been part of Ambt Montfort which in January 2007 formed a new municipality together with Roerdalen under the name of Roerdalen.
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Sint Odiliënberg is a few kilometres south of Roermond, lying along the small Roer river. Romans settled here very early. In 706 missionary monks from Ireland, Saints Wiro, Plechelmus, and Otgerus, built a monastery there, which was important in the Christianisation of the Netherlands. In the time of the Viking invasions the Utrecht clergy found shelter here. At first it was a secular collegiate chapter, which later moved to Roermond in the 14th century. A community of the Canons Regular of the Holy Sepulchre settled on the hill during that period.
After the Eighty Years' War, this area came under Spanish rule; it was ceded to the Dutch Republic in 1715. Until the French municipal reorganisation, St. Odiliënberg belonged to the administrative division known as Ambt Montfort, but it became a separate commune/municipality c. 1810, until it again merged with Ambt Montfort and later with Roerdalen.
- Connie Palmen, writer, born in St. Odiliënberg
- Geert Chatrou, professional whistler, born in St. Odiliënberg
- J. Kuyper, Gemeente Atlas van Nederland, 1865-1870, "Sint Odiliënberg". Map of the former municipality, around 1868.