3991 Postcode — Houten, Utrecht

English Nederlands

4-digit postcode 3991 covers Houten, 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: 17,975
Households: 7,105
Average property value: €555,000
Owner-occupied: 80%
Average household size: 2.5
Urbanity: Strongly urban

Where 3991 is

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

People

Residents	17,975
Men	8,880
Women	9,095
Under 15	3,200
15 to 25	2,405
25 to 45	3,675
45 to 65	5,270
65 and over	3,425
Born abroad, in Europe	0%
Born abroad, outside Europe	10%

Households

Households	7,105
Average size	2.5
One-person households	25.4%1,805
Couples without children	2,135
One-parent families	7.2%515
Two-parent families	2,655

Housing

Homes	7,195
Average property value (WOZ)	€555,000
Owner-occupied	80%
Rented	20%
Housing-association homes	1,405
Flats and shared buildings	23.3%1,675
Built before 1945	2.4%170
Unoccupied	2.2%155

Area

Addresses per square kilometre	1,708
Urbanity	Strongly urban
Residents on unemployment, disability or income support	4.8%855

Against the national median

The tick is the national median.

Housing

Owner-occupied	80%
Rented	20%
Flats and shared buildings	23.3%
Built before 1945	2.4%
Unoccupied	2.2%

Households

One-person households	25.4%
One-parent families	7.2%
Residents on unemployment, disability or income support	4.8%

Age bands

Under 15	17.8025%
15 to 25	13.3797%
25 to 45	20.4451%
45 to 65	29.3185%
65 and over	19.0542%

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.