3142 Postcode — Maassluis, South Holland

English Nederlands

4-digit postcode 3142 covers Maassluis, 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: 5,880
Households: 2,635
Average property value: €297,000
Owner-occupied: 30%
Average household size: 2.2
Urbanity: Very strongly urban

Where 3142 is

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

People

Residents	5,880
Men	2,790
Women	3,090
Under 15	1,095
15 to 25	685
25 to 45	1,355
45 to 65	1,360
65 and over	1,385
Born abroad, in Europe	0%
Born abroad, outside Europe	10%

Households

Households	2,635
Average size	2.2
One-person households	36.8%970
Couples without children	705
One-parent families	12.3%325
Two-parent families	635

Housing

Homes	2,650
Average property value (WOZ)	€297,000
Owner-occupied	30%
Rented	70%
Housing-association homes	1,580
Flats and shared buildings	50.4%1,335
Built before 1945	13.8%365
Unoccupied	2.6%70

Area

Addresses per square kilometre	2,508
Urbanity	Very strongly urban
Residents on unemployment, disability or income support	9%530

Against the national median

The tick is the national median.

Housing

Owner-occupied	30%
Rented	70%
Flats and shared buildings	50.4%
Built before 1945	13.8%
Unoccupied	2.6%

Households

One-person households	36.8%
One-parent families	12.3%
Residents on unemployment, disability or income support	9%

Age bands

Under 15	18.6224%
15 to 25	11.6497%
25 to 45	23.0442%
45 to 65	23.1293%
65 and over	23.5544%

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.