9721 Postcode — Groningen, Groningen

English Nederlands

4-digit postcode 9721 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: 11,310
Households: 6,370
Average property value: €328,000
Owner-occupied: 50%
Average household size: 1.8
Urbanity: Very strongly urban

Where 9721 is

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

People

Residents	11,310
Men	5,515
Women	5,795
Under 15	1,565
15 to 25	1,590
25 to 45	3,545
45 to 65	2,590
65 and over	2,020
Born abroad, in Europe	10%
Born abroad, outside Europe	10%

Households

Households	6,370
Average size	1.8
One-person households	54.8%3,490
Couples without children	1,505
One-parent families	6.5%415
Two-parent families	960

Housing

Homes	6,200
Average property value (WOZ)	€328,000
Owner-occupied	50%
Rented	50%
Housing-association homes	1,510
Flats and shared buildings	69.2%4,290
Built before 1945	12.3%760
Unoccupied	5.3%330

Area

Addresses per square kilometre	3,171
Urbanity	Very strongly urban
Residents on unemployment, disability or income support	8%910

Against the national median

The tick is the national median.

Housing

Owner-occupied	50%
Rented	50%
Flats and shared buildings	69.2%
Built before 1945	12.3%
Unoccupied	5.3%

Households

One-person households	54.8%
One-parent families	6.5%
Residents on unemployment, disability or income support	8%

Age bands

Under 15	13.8373%
15 to 25	14.0584%
25 to 45	31.3439%
45 to 65	22.9001%
65 and over	17.8603%

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.