Population density is midyear population divided by land area in square kilometers.
| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Belgium | 338.0 | 345.5 | 359.2 | 363.9 | 366.2 | 367.9 | 369.5 | 371.7 | 373.6 | 375.0 | 374.7 | 376.8 | 378.4 | 379.9 | 383.0 | ||
| Luxembourg | 169.5 | 180.7 | 196.9 | 201.3 | 206.2 | 211.1 | 216.1 | 221.3 | 226.1 | 231.6 | 236.1 | 240.8 | 244.9 | 248.6 | 253.7 | ||
| Netherlands | 386.2 | 442.9 | 471.7 | 483.4 | 492.6 | 495.0 | 496.9 | 498.8 | 500.6 | 503.1 | 505.8 | 508.8 | 511.8 | 515.1 | 518.0 | 520.7 | 525.7 |