2223 Postcode — Katwijk, South Holland

English Nederlands

4-digit postcode 2223 covers Katwijk, 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: 6,215
Households: 2,490
Average property value: €462,000
Owner-occupied: 60%
Average household size: 2.2
Urbanity: Strongly urban

Where 2223 is

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

People

Residents	6,215
Men	3,105
Women	3,110
Under 15	970
15 to 25	760
25 to 45	1,460
45 to 65	1,685
65 and over	1,340
Born abroad, in Europe	10%
Born abroad, outside Europe	10%

Households

Households	2,490
Average size	2.2
One-person households	37.8%940
Couples without children	705
One-parent families	6.2%155
Two-parent families	690

Housing

Homes	2,465
Average property value (WOZ)	€462,000
Owner-occupied	60%
Rented	40%
Housing-association homes	915
Flats and shared buildings	37.5%925
Built before 1945	16.2%400
Unoccupied	3%75

Area

Addresses per square kilometre	1,993
Urbanity	Strongly urban
Residents on unemployment, disability or income support	6%375

Against the national median

The tick is the national median.

Housing

Owner-occupied	60%
Rented	40%
Flats and shared buildings	37.5%
Built before 1945	16.2%
Unoccupied	3%

Households

One-person households	37.8%
One-parent families	6.2%
Residents on unemployment, disability or income support	6%

Age bands

Under 15	15.6074%
15 to 25	12.2285%
25 to 45	23.4916%
45 to 65	27.1118%
65 and over	21.5607%

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.