On 1 Jan 2003 Heerjansdam became part of Zwijndrecht
municipality.
Number of inhabitants (1 Jan 2003): 3.590; area: 6,39 km². Settlements:
Heerjansdam (seat), Kleine-Lindt.
Heerjansdam was named after Jan van Rosendaele, who became lord of
“Heeren Heynen ambacht” (as it was called up till then) on 25 Nov
1368.
Flagdescription: Three equally wide horizontal stripes green - yellow
- black with on green a yellow lozenge, on yellow a black one and on black
a green one.
This flag was adopted by municipal resolution on 20 Mar 1962. The colors
and lozenges have been derived from the municipal arms; the color yellow
symbolizes the important rôle of water in this municipality. The
placement of the lozenges reminds of the position between the rivers "Oude
Maas" and "Oude Waal".
Source: Sierksma's Nederlands Vlaggenboek, 1962 [sie62].