1421 Postcode — Uithoorn, North Holland

English Nederlands

4-digit postcode 1421 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: 6,080
Households: 2,795
Average property value: €416,000
Owner-occupied: 50%
Average household size: 2.2
Urbanity: Strongly urban

Where 1421 is

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

People

Residents	6,080
Men	2,965
Women	3,120
Under 15	965
15 to 25	740
25 to 45	1,500
45 to 65	1,750
65 and over	1,125
Born abroad, in Europe	10%
Born abroad, outside Europe	20%

Households

Households	2,795
Average size	2.2
One-person households	37.4%1,045
Couples without children	695
One-parent families	11.6%325
Two-parent families	725

Housing

Homes	2,850
Average property value (WOZ)	€416,000
Owner-occupied	50%
Rented	50%
Housing-association homes	1,260
Flats and shared buildings	37%1,055
Built before 1945	5.6%160
Unoccupied	6.1%175

Area

Addresses per square kilometre	1,764
Urbanity	Strongly urban
Residents on unemployment, disability or income support	7.6%465

Against the national median

The tick is the national median.

Housing

Owner-occupied	50%
Rented	50%
Flats and shared buildings	37%
Built before 1945	5.6%
Unoccupied	6.1%

Households

One-person households	37.4%
One-parent families	11.6%
Residents on unemployment, disability or income support	7.6%

Age bands

Under 15	15.8717%
15 to 25	12.1711%
25 to 45	24.6711%
45 to 65	28.7829%
65 and over	18.5033%

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.