Census data for Frederiksborg 1921
Hundred list
| 1921 | Holbo | 13 | 46.15% | 1,263 | 2,685 | 1,331 | 49.57% | 1,345 | 50.09% | 9 | 0.34% | 2,208 |
| 1921 | Horns | 9 | 22.22% | 611 | 969 | 507 | 52.32% | 460 | 47.47% | 2 | 0.21% | 696 |
| 1921 | Lynge-Frederiksborg | 17 | 29.41% | 3,296 | 1,025 | 524 | 51.12% | 500 | 48.78% | 1 | 0.10% | 0 |
| 1921 | Lynge-Kronborg | 12 | 41.67% | 5,607 | 23 | 12 | 52.17% | 8 | 34.78% | 3 | 13.04% | 0 |
| 1921 | Strø | 11 | 36.36% | 1,517 | 162 | 79 | 48.77% | 81 | 50.00% | 2 | 1.23% | 0 |
| 1921 | Ølstykke | 7 | 100.00% | 527 | 6,239 | 3,199 | 51.27% | 3,040 | 48.73% | 0 | 0.00% | 2,226 |