In het postcodegebied 1865 is het aantal inwoners sinds 1998 als volgt opgebouwd :
| Jaar | Inwoners | Groei |
| 1998 | 570 | |
| 1999 | 545 | -4.39% |
| 2000 | 560 | 2.75% |
| 2001 | 630 | 12.50% |
| 2002 | 625 | -0.79% |
| 2003 | 515 | -17.60% |
| 2004 | 470 | -8.74% |
| 2005 | 475 | 1.06% |
| 2006 | 460 | -3.16% |
| 2007 | 455 | -1.09% |
| 2008 | 430 | -5.49% |
| 2009 | 405 | -5.81% |
| 2010 | 405 | 0.00% |
| 2011 | 390 | -3.70% |
| .2012 | 405 | 3.85% |
| 2013 | 385 | -4.94% |
| 2014 | 375 | -2.60% |
| 2015 | 440 | 17.33% |
| 2016 | 420 | -4.55% |
| 2017 | 375 | -10.71% |
| 2018 | 370 | -1.33% |
| 2019 | 350 | -5.41% |
| 2020 | 335 | -4.29% |