Each municipality of the region of Flanders which existed as a separate entity on the first of January 1961, and no longer existed as such after the first of January 1977 is considered a deelgemeente within most municipalities.
In general these deelgemeenten are not a level of administration. Only in the municipality of Antwerp they are the lowest level of administration and are called districts.
The term deelgemeente is used in Dutch to refer to such a subdivision of a municipality anywhere in Belgium, municipalities having been merged throughout the country in the 1970s. In English (and French) there is no directly equivalent term, and deelgemeente is not normally used when talking about former municipalities in Wallonia or the Brussels Capital Region. In French, the term Ancienne commune (former municipality) or Section de commune is generally used.
In the Netherlands, deelgemeenten were administrative divisions that could be instituted by any municipality. The city of Amsterdam was the first to do this. In the early 80s, the municipality was divided into fifteen deelgemeenten. This amount was decreased to eight in 2010. Seven of these were officially called stadsdeel. Rotterdam followed in the 90s. The municipality was divided into fourteen deelgemeenten. deelgemeenten had their own mayor, the deelgemeentevoorzitter, their own aldermen, deelgemeentewethouders, and their own elected assembly, the deelgemeenteraad. Deelgemeenten were abolished in March 2014, after the 2014 municipal elections. Since 2014, districts of Amsterdam have a bestuurscommissie (literally "governance commission"), while deelgemeenten of Rotterdam are now called gebieden (literally "areas").