3628 Postcode — Kockengen, Utrecht

English Nederlands

4-digit postcode 3628 covers Kockengen, 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: 3,470
Households: 1,430
Average property value: €530,000
Owner-occupied: 70%
Average household size: 2.4
Urbanity: Not urban

Where 3628 is

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

People

Residents	3,470
Men	1,755
Women	1,715
Under 15	590
15 to 25	410
25 to 45	715
45 to 65	950
65 and over	810
Born abroad, in Europe	0%
Born abroad, outside Europe	0%

Households

Households	1,430
Average size	2.4
One-person households	30.8%440
Couples without children	465
One-parent families	5.9%85
Two-parent families	440

Housing

Homes	1,440
Average property value (WOZ)	€530,000
Owner-occupied	70%
Rented	30%
Housing-association homes	330
Flats and shared buildings	20.1%290
Built before 1945	16%230
Unoccupied	3.8%55

Area

Addresses per square kilometre	309
Urbanity	Not urban
Residents on unemployment, disability or income support	4.2%145

Against the national median

The tick is the national median.

Housing

Owner-occupied	70%
Rented	30%
Flats and shared buildings	20.1%
Built before 1945	16%
Unoccupied	3.8%

Households

One-person households	30.8%
One-parent families	5.9%
Residents on unemployment, disability or income support	4.2%

Age bands

Under 15	16.9784%
15 to 25	11.7986%
25 to 45	20.5755%
45 to 65	27.3381%
65 and over	23.3094%

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.