3998 Postcode — Schalkwijk, Utrecht

English Nederlands

4-digit postcode 3998 covers Schalkwijk, 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: 2,185
Households: 915
Average property value: €605,000
Owner-occupied: 80%
Average household size: 2.4
Urbanity: Not urban

Where 3998 is

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

People

Residents	2,185
Men	1,115
Women	1,075
Under 15	300
15 to 25	315
25 to 45	440
45 to 65	650
65 and over	485
Born abroad, in Europe	0%
Born abroad, outside Europe	0%

Households

Households	915
Average size	2.4
One-person households	29%265
Couples without children	310
One-parent families	5.5%50
Two-parent families	285

Housing

Homes	940
Average property value (WOZ)	€605,000
Owner-occupied	80%
Rented	20%
Housing-association homes	105
Flats and shared buildings	14.9%140
Built before 1945	25%235
Unoccupied	4.3%40

Area

Addresses per square kilometre	162
Urbanity	Not urban
Residents on unemployment, disability or income support	4.8%105

Against the national median

The tick is the national median.

Housing

Owner-occupied	80%
Rented	20%
Flats and shared buildings	14.9%
Built before 1945	25%
Unoccupied	4.3%

Households

One-person households	29%
One-parent families	5.5%
Residents on unemployment, disability or income support	4.8%

Age bands

Under 15	13.6986%
15 to 25	14.3836%
25 to 45	20.0913%
45 to 65	29.6804%
65 and over	22.1461%

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.