In het postcodegebied 1901 is het aantal inwoners sinds 1998 als volgt opgebouwd :
| Jaar | Inwoners | Groei |
| 1998 | 14,170 | |
| 1999 | 14,150 | -0.14% |
| 2000 | 14,060 | -0.64% |
| 2001 | 14,020 | -0.28% |
| 2002 | 14,000 | -0.14% |
| 2003 | 13,925 | -0.54% |
| 2004 | 13,940 | 0.11% |
| 2005 | 13,880 | -0.43% |
| 2006 | 13,865 | -0.11% |
| 2007 | 13,895 | 0.22% |
| 2008 | 13,795 | -0.72% |
| 2009 | 13,755 | -0.29% |
| 2010 | 13,780 | 0.18% |
| 2011 | 13,815 | 0.25% |
| .2012 | 13,740 | -0.54% |
| 2013 | 13,755 | 0.11% |
| 2014 | 13,750 | -0.04% |
| 2015 | 13,825 | 0.55% |
| 2016 | 14,065 | 1.74% |
| 2017 | 14,285 | 1.56% |
| 2018 | 14,525 | 1.68% |
| 2019 | 14,580 | 0.38% |
| 2020 | 14,620 | 0.27% |