3111 Postcode — Schiedam, South Holland

English Nederlands

4-digit postcode 3111 covers Schiedam, 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: 5,410
Households: 3,060
Average property value: €342,000
Owner-occupied: 50%
Average household size: 1.8
Urbanity: Very strongly urban

Where 3111 is

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

People

Residents	5,410
Men	2,875
Women	2,535
Under 15	610
15 to 25	520
25 to 45	1,945
45 to 65	1,570
65 and over	765
Born abroad, in Europe	10%
Born abroad, outside Europe	20%

Households

Households	3,060
Average size	1.8
One-person households	52.6%1,610
Couples without children	785
One-parent families	6.9%210
Two-parent families	455

Housing

Homes	3,000
Average property value (WOZ)	€342,000
Owner-occupied	50%
Rented	50%
Housing-association homes	530
Flats and shared buildings	78.5%2,355
Built before 1945	49.8%1,495
Unoccupied	7.7%230

Area

Addresses per square kilometre	5,191
Urbanity	Very strongly urban
Residents on unemployment, disability or income support	8.2%445

Against the national median

The tick is the national median.

Housing

Owner-occupied	50%
Rented	50%
Flats and shared buildings	78.5%
Built before 1945	49.8%
Unoccupied	7.7%

Households

One-person households	52.6%
One-parent families	6.9%
Residents on unemployment, disability or income support	8.2%

Age bands

Under 15	11.2754%
15 to 25	9.61183%
25 to 45	35.9519%
45 to 65	29.0203%
65 and over	14.1405%

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.