1423 Postcode — Uithoorn, North Holland

English Nederlands

4-digit postcode 1423 covers Uithoorn, 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: 5,500
Households: 2,385
Average property value: €484,000
Owner-occupied: 70%
Average household size: 2.3
Urbanity: Moderately urban

Where 1423 is

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

People

Residents	5,500
Men	2,735
Women	2,765
Under 15	745
15 to 25	610
25 to 45	1,140
45 to 65	1,855
65 and over	1,150
Born abroad, in Europe	0%
Born abroad, outside Europe	10%

Households

Households	2,385
Average size	2.3
One-person households	28.9%690
Couples without children	755
One-parent families	7.3%175
Two-parent families	770

Housing

Homes	2,360
Average property value (WOZ)	€484,000
Owner-occupied	70%
Rented	30%
Housing-association homes	500
Flats and shared buildings	20.6%485
Built before 1945	0.2%5
Unoccupied	1.7%40

Area

Addresses per square kilometre	1,223
Urbanity	Moderately urban
Residents on unemployment, disability or income support	5.8%320

Against the national median

The tick is the national median.

Housing

Owner-occupied	70%
Rented	30%
Flats and shared buildings	20.6%
Built before 1945	0.2%
Unoccupied	1.7%

Households

One-person households	28.9%
One-parent families	7.3%
Residents on unemployment, disability or income support	5.8%

Age bands

Under 15	13.5455%
15 to 25	11.0909%
25 to 45	20.7273%
45 to 65	33.7273%
65 and over	20.9091%

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.