Aantal inwoners naar leeftijd in Holland Rijnland per 1-1-2021.
| regio | 0-14 | 15-44 | 45-64 | 65-74 | 75 en ouder | totaal | |
|---|---|---|---|---|---|---|---|
| 0 | 31.340 | 67.854 | 54.374 | 22.432 | 17.027 | 193.027 | |
| 1 | Hillegom | 3.441 | 7.753 | 6.318 | 2.624 | 2.061 | 22.197 |
| 2 | Katwijk | 11.979 | 24.558 | 17.392 | 7.008 | 5.058 | 65.995 |
| 3 | Lisse | 3.495 | 7.589 | 6.601 | 2.926 | 2.371 | 22.982 |
| 4 | Noordwijk | 6.450 | 14.882 | 12.856 | 5.732 | 4.142 | 44.062 |
| 5 | Teylingen | 5.975 | 13.072 | 11.207 | 4.142 | 3.395 | 37.791 |
| 6 | 30.509 | 86.988 | 54.561 | 22.282 | 16.687 | 211.027 | |
| 7 | Leiden | 15.792 | 58.688 | 29.983 | 11.803 | 7.827 | 124.093 |
| 8 | Leiderdorp | 4.317 | 8.929 | 7.812 | 3.494 | 2.825 | 27.377 |
| 9 | Oegstgeest | 4.603 | 8.347 | 6.982 | 2.763 | 2.369 | 25.064 |
| 10 | Voorschoten | 4.431 | 8.048 | 7.122 | 3.188 | 2.861 | 25.650 |
| 11 | Zoeterwoude | 1.366 | 2.976 | 2.662 | 1.034 | 805 | 8.843 |
| 12 | 27.005 | 60.154 | 48.287 | 19.887 | 13.946 | 169.279 | |
| 13 | Alphen a/d Rijn | 18.225 | 41.025 | 31.387 | 12.925 | 9.025 | 112.587 |
| 14 | Kaag en Braassem | 4.217 | 9.245 | 8.245 | 3.420 | 2.414 | 27.541 |
| 15 | Nieuwkoop | 4.563 | 9.884 | 8.655 | 3.542 | 2.507 | 29.151 |
| totaal | 88.854 | 214.996 | 157.222 | 64.601 | 47.660 | 573.333 |
Bron: Centraal Bureau voor de Statistiek (CBS)