In het postcodegebied 9581 is het aantal inwoners sinds 1998 als volgt opgebouwd :
| Jaar | Inwoners | Groei |
| 1998 | 7,445 | |
| 1999 | 7,410 | -0.47% |
| 2000 | 7,440 | 0.40% |
| 2001 | 7,735 | 3.97% |
| 2002 | 7,775 | 0.52% |
| 2003 | 7,810 | 0.45% |
| 2004 | 7,845 | 0.45% |
| 2005 | 7,840 | -0.06% |
| 2006 | 7,850 | 0.13% |
| 2007 | 7,810 | -0.51% |
| 2008 | 7,735 | -0.96% |
| 2009 | 7,565 | -2.20% |
| 2010 | 7,685 | 1.59% |
| 2011 | 7,585 | -1.30% |
| .2012 | 7,485 | -1.32% |
| 2013 | 7,470 | -0.20% |
| 2014 | 7,515 | 0.60% |
| 2015 | 7,495 | -0.27% |
| 2016 | 7,585 | 1.20% |
| 2017 | 7,230 | -4.68% |
| 2018 | 7,325 | 1.31% |
| 2019 | 7,000 | -4.44% |
| 2020 | 6,985 | -0.21% |