It is a part of the municipality of Tholen, and lies about 16 km west of Bergen op Zoom.

Named after Saint Martin, Sint-Maartensdijk was founded as 'Haestinge', and renamed when it got a church dedicated to Martin of Tours.

The castle was located just north of the town walls, and its southern moat is still visible.

Sint-Maartensdijk was a separate municipality until 1971, when it was merged with Tholen.

This article about a location in Zeeland is a stub.