3523 Postcode — Utrecht, Utrecht

English Nederlands

4-digit postcode 3523 covers Utrecht, Utrecht. 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: 10,585
Households: 6,105
Average property value: €426,000
Owner-occupied: 40%
Average household size: 1.7
Urbanity: Very strongly urban

Where 3523 is

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

People

Residents	10,585
Men	4,980
Women	5,605
Under 15	1,465
15 to 25	1,665
25 to 45	4,525
45 to 65	1,775
65 and over	1,155
Born abroad, in Europe	10%
Born abroad, outside Europe	10%

Households

Households	6,105
Average size	1.7
One-person households	58.8%3,590
Couples without children	1,325
One-parent families	4%245
Two-parent families	940

Housing

Homes	5,385
Average property value (WOZ)	€426,000
Owner-occupied	40%
Rented	60%
Housing-association homes	1,700
Flats and shared buildings	69%3,715
Built before 1945	19%1,025
Unoccupied	3.5%190

Area

Addresses per square kilometre	4,482
Urbanity	Very strongly urban
Residents on unemployment, disability or income support	6.8%720

Against the national median

The tick is the national median.

Housing

Owner-occupied	40%
Rented	60%
Flats and shared buildings	69%
Built before 1945	19%
Unoccupied	3.5%

Households

One-person households	58.8%
One-parent families	4%
Residents on unemployment, disability or income support	6.8%

Age bands

Under 15	13.8403%
15 to 25	15.7298%
25 to 45	42.7492%
45 to 65	16.769%
65 and over	10.9117%

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.