Census data for Glostrup parish
| 1787 | 17 | 619 | 311 | 50.24% | 308 | 49.76% | 0 | 0.00% | 0 |
| 1801 | 30 | 659 | 336 | 50.99% | 323 | 49.01% | 0 | 0.00% | 0 |
| 1834 | 25 | 943 | 495 | 52.49% | 448 | 47.51% | 0 | 0.00% | 0 |
| 1840 | 24 | 960 | 523 | 54.48% | 437 | 45.52% | 0 | 0.00% | 0 |
| 1845 | 30 | 1,033 | 561 | 54.31% | 472 | 45.69% | 0 | 0.00% | 0 |
| 1850 | 23 | 1,064 | 564 | 53.01% | 500 | 46.99% | 0 | 0.00% | 0 |
| 1855 | 28 | 18 | 10 | 55.56% | 8 | 44.44% | 0 | 0.00% | 0 |
| 1860 | 26 | 1,107 | 570 | 51.49% | 537 | 48.51% | 0 | 0.00% | 0 |
| 1870 | 55 | 1,125 | 589 | 52.36% | 534 | 47.47% | 2 | 0.18% | 0 |
| 1880 | 94 | 1,253 | 629 | 50.20% | 624 | 49.80% | 0 | 0.00% | 0 |
| 1885 | 27 | 60 | 28 | 46.67% | 32 | 53.33% | 0 | 0.00% | 0 |
| 1890 | 135 | 1,073 | 589 | 54.89% | 470 | 43.80% | 14 | 1.30% | 0 |
| 1901 | 940 | 2,070 | 1,034 | 49.95% | 1,036 | 50.05% | 0 | 0.00% | 1,639 |
| 1906 | 213 | 100 | 52 | 52.00% | 48 | 48.00% | 0 | 0.00% | 0 |
| 1911 | 282 | 302 | 166 | 54.97% | 133 | 44.04% | 3 | 0.99% | 0 |
| 1916 | 466 | 135 | 74 | 54.81% | 61 | 45.19% | 0 | 0.00% | 0 |
| 1921 | 308 | 471 | 265 | 56.26% | 196 | 41.61% | 10 | 2.12% | 0 |
| 1925 | 565 | 22 | 10 | 45.45% | 12 | 54.55% | 0 | 0.00% | 0 |
| 1930 | 1,919 | 24 | 14 | 58.33% | 10 | 41.67% | 0 | 0.00% | 0 |
| 1940 | 6,486 | 52 | 23 | 44.23% | 29 | 55.77% | 0 | 0.00% | 0 |