3531 Postcode — Utrecht, Utrecht

English Nederlands

4-digit postcode 3531 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: 11,370
Households: 6,825
Average property value: €440,000
Owner-occupied: 40%
Average household size: 1.7
Urbanity: Very strongly urban

Where 3531 is

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

People

Residents	11,370
Men	5,390
Women	5,980
Under 15	1,180
15 to 25	1,690
25 to 45	5,435
45 to 65	2,055
65 and over	1,010
Born abroad, in Europe	10%
Born abroad, outside Europe	20%

Households

Households	6,825
Average size	1.7
One-person households	58.8%4,015
Couples without children	1,630
One-parent families	5.1%350
Two-parent families	825

Housing

Homes	5,505
Average property value (WOZ)	€440,000
Owner-occupied	40%
Rented	60%
Housing-association homes	1,530
Flats and shared buildings	73%4,020
Built before 1945	76.7%4,220
Unoccupied	5.1%280

Area

Addresses per square kilometre	4,502
Urbanity	Very strongly urban
Residents on unemployment, disability or income support	8.1%920

Against the national median

The tick is the national median.

Housing

Owner-occupied	40%
Rented	60%
Flats and shared buildings	73%
Built before 1945	76.7%
Unoccupied	5.1%

Households

One-person households	58.8%
One-parent families	5.1%
Residents on unemployment, disability or income support	8.1%

Age bands

Under 15	10.3782%
15 to 25	14.8637%
25 to 45	47.8012%
45 to 65	18.0739%
65 and over	8.88303%

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.