1551 Postcode — Westzaan, North Holland

English Nederlands

4-digit postcode 1551 covers Westzaan, North 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: 5,130
Households: 2,090
Average property value: €510,000
Owner-occupied: 80%
Average household size: 2.3
Urbanity: Not urban

Where 1551 is

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

People

Residents	5,130
Men	2,685
Women	2,440
Under 15	695
15 to 25	540
25 to 45	1,215
45 to 65	1,580
65 and over	1,100
Born abroad, in Europe	0%
Born abroad, outside Europe	0%

Households

Households	2,090
Average size	2.3
One-person households	29.2%610
Couples without children	705
One-parent families	6.9%145
Two-parent families	630

Housing

Homes	2,065
Average property value (WOZ)	€510,000
Owner-occupied	80%
Rented	20%
Housing-association homes	335
Flats and shared buildings	10.9%225
Built before 1945	26.9%555
Unoccupied	3.4%70

Area

Addresses per square kilometre	339
Urbanity	Not urban
Residents on unemployment, disability or income support	4.9%250

Against the national median

The tick is the national median.

Housing

Owner-occupied	80%
Rented	20%
Flats and shared buildings	10.9%
Built before 1945	26.9%
Unoccupied	3.4%

Households

One-person households	29.2%
One-parent families	6.9%
Residents on unemployment, disability or income support	4.9%

Age bands

Under 15	13.5478%
15 to 25	10.5263%
25 to 45	23.6842%
45 to 65	30.7992%
65 and over	21.4425%

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.