3331 Postcode — Zwijndrecht, South Holland

English Nederlands

4-digit postcode 3331 covers Zwijndrecht, South Holland. Dutch postcodes are four digits and two letters. The four digits identify a delivery area, and it is the level Statistics Netherlands publishes against, so the figures below describe this postcode itself rather than the town around it.

Residents: 11,295
Households: 5,325
Average property value: €317,000
Owner-occupied: 60%
Average household size: 2.1
Urbanity: Very strongly urban

Where 3331 is

Zwijndrecht, South Holland — the point recorded for this postal code. It marks the centre of the code, not its boundary.

People

Residents	11,295
Men	5,675
Women	5,620
Under 15	1,800
15 to 25	1,290
25 to 45	3,240
45 to 65	2,745
65 and over	2,210
Born abroad, in Europe	0%
Born abroad, outside Europe	10%

Households

Households	5,325
Average size	2.1
One-person households	40.3%2,145
Couples without children	1,480
One-parent families	8.9%475
Two-parent families	1,225

Housing

Homes	5,405
Average property value (WOZ)	€317,000
Owner-occupied	60%
Rented	40%
Housing-association homes	1,995
Flats and shared buildings	47%2,540
Built before 1945	15.4%830
Unoccupied	3.3%180

Area

Addresses per square kilometre	2,759
Urbanity	Very strongly urban
Residents on unemployment, disability or income support	9.5%1,070

Against the national median

The tick is the national median.

Housing

Owner-occupied	60%
Rented	40%
Flats and shared buildings	47%
Built before 1945	15.4%
Unoccupied	3.3%

Households

One-person households	40.3%
One-parent families	8.9%
Residents on unemployment, disability or income support	9.5%

Age bands

Under 15	15.9504%
15 to 25	11.4311%
25 to 45	28.7107%
45 to 65	24.3243%
65 and over	19.5835%

Figures from Statistics Netherlands (CBS), key figures per postcode, 1 January 2025. CBS withholds figures for areas with too few residents to publish safely, so a missing value here means withheld, not zero.