In het postcodegebied 6129 is het aantal inwoners sinds 1998 als volgt opgebouwd :
| Jaar | Inwoners | Groei |
| 1998 | 5,885 | |
| 1999 | 5,905 | 0.34% |
| 2000 | 5,835 | -1.19% |
| 2001 | 5,890 | 0.94% |
| 2002 | 5,870 | -0.34% |
| 2003 | 5,890 | 0.34% |
| 2004 | 5,835 | -0.93% |
| 2005 | 5,805 | -0.51% |
| 2006 | 5,705 | -1.72% |
| 2007 | 5,595 | -1.93% |
| 2008 | 5,565 | -0.54% |
| 2009 | 5,555 | -0.18% |
| 2010 | 5,540 | -0.27% |
| 2011 | 5,650 | 1.99% |
| .2012 | 5,705 | 0.97% |
| 2013 | 5,700 | -0.09% |
| 2014 | 5,675 | -0.44% |
| 2015 | 5,615 | -1.06% |
| 2016 | 5,590 | -0.45% |
| 2017 | 5,565 | -0.45% |
| 2018 | 5,520 | -0.81% |
| 2019 | 5,595 | 1.36% |
| 2020 | 5,630 | 0.63% |