2225 Postcode — Katwijk, South Holland

English Nederlands

4-digit postcode 2225 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: 14,055
Households: 5,690
Average property value: €474,000
Owner-occupied: 70%
Average household size: 2.4
Urbanity: Strongly urban

Where 2225 is

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

People

Residents	14,055
Men	6,905
Women	7,150
Under 15	2,420
15 to 25	1,715
25 to 45	3,455
45 to 65	3,490
65 and over	2,970
Born abroad, in Europe	0%
Born abroad, outside Europe	0%

Households

Households	5,690
Average size	2.4
One-person households	33.1%1,885
Couples without children	1,710
One-parent families	5%285
Two-parent families	1,815

Housing

Homes	5,895
Average property value (WOZ)	€474,000
Owner-occupied	70%
Rented	30%
Housing-association homes	815
Flats and shared buildings	41.9%2,470
Built before 1945	37%2,180
Unoccupied	5.9%350

Area

Addresses per square kilometre	2,361
Urbanity	Strongly urban
Residents on unemployment, disability or income support	4.6%650

Against the national median

The tick is the national median.

Housing

Owner-occupied	70%
Rented	30%
Flats and shared buildings	41.9%
Built before 1945	37%
Unoccupied	5.9%

Households

One-person households	33.1%
One-parent families	5%
Residents on unemployment, disability or income support	4.6%

Age bands

Under 15	17.2242%
15 to 25	12.2064%
25 to 45	24.5907%
45 to 65	24.8399%
65 and over	21.1388%

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.