2403 Postcode — Alphen aan den Rijn, South Holland

English Nederlands

4-digit postcode 2403 covers Alphen aan den Rijn, 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: 10,175
Households: 4,460
Average property value: €342,000
Owner-occupied: 60%
Average household size: 2.3
Urbanity: Strongly urban

Where 2403 is

Alphen aan den Rijn, South Holland — the point recorded for this postal code. It marks the centre of the code, not its boundary.

People

Residents	10,175
Men	5,140
Women	5,035
Under 15	1,725
15 to 25	1,160
25 to 45	2,630
45 to 65	2,525
65 and over	2,130
Born abroad, in Europe	10%
Born abroad, outside Europe	10%

Households

Households	4,460
Average size	2.3
One-person households	33.7%1,505
Couples without children	1,325
One-parent families	8.4%375
Two-parent families	1,255

Housing

Homes	4,425
Average property value (WOZ)	€342,000
Owner-occupied	60%
Rented	40%
Housing-association homes	1,270
Flats and shared buildings	40.1%1,775
Built before 1945	0.1%5
Unoccupied	2.1%95

Area

Addresses per square kilometre	2,179
Urbanity	Strongly urban
Residents on unemployment, disability or income support	7.3%745

Against the national median

The tick is the national median.

Housing

Owner-occupied	60%
Rented	40%
Flats and shared buildings	40.1%
Built before 1945	0.1%
Unoccupied	2.1%

Households

One-person households	33.7%
One-parent families	8.4%
Residents on unemployment, disability or income support	7.3%

Age bands

Under 15	16.9617%
15 to 25	11.4061%
25 to 45	25.8604%
45 to 65	24.8279%
65 and over	20.944%

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.