9731 Postcode — Groningen, Groningen

English Nederlands

4-digit postcode 9731 covers Groningen, Groningen. 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: 7,735
Households: 3,490
Average property value: €403,000
Owner-occupied: 80%
Average household size: 2.2
Urbanity: Strongly urban

Where 9731 is

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

People

Residents	7,735
Men	3,880
Women	3,860
Under 15	1,230
15 to 25	800
25 to 45	1,905
45 to 65	2,175
65 and over	1,625
Born abroad, in Europe	0%
Born abroad, outside Europe	10%

Households

Households	3,490
Average size	2.2
One-person households	30.5%1,065
Couples without children	1,205
One-parent families	7.9%275
Two-parent families	945

Housing

Homes	3,330
Average property value (WOZ)	€403,000
Owner-occupied	80%
Rented	20%
Housing-association homes	475
Flats and shared buildings	11.4%380
Built before 1945	4.5%150
Unoccupied	2.4%80

Area

Addresses per square kilometre	1,693
Urbanity	Strongly urban
Residents on unemployment, disability or income support	5.9%455

Against the national median

The tick is the national median.

Housing

Owner-occupied	80%
Rented	20%
Flats and shared buildings	11.4%
Built before 1945	4.5%
Unoccupied	2.4%

Households

One-person households	30.5%
One-parent families	7.9%
Residents on unemployment, disability or income support	5.9%

Age bands

Under 15	15.9017%
15 to 25	10.3426%
25 to 45	24.6283%
45 to 65	28.1189%
65 and over	21.0084%

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.