| Jahr | Bevölkerung | Ausländer/-innen | Bevölkerung je km2 | ||||
|---|---|---|---|---|---|---|---|
| insgesamt | männlich | weiblich | insgesamt | männlich | weiblich | ||
| 1871 | 1.832.338 | 903.921 | 928.417 | . | . | . | 92 |
| 1900 | 2.303.725 | 1.148.072 | 1.155.653 | . | . | . | 116 |
| 1925 | 2.690.165 | 1.310.190 | 1.379.975 | . | . | . | 136 |
| 1933 | 2.841.395 | 1.393.683 | 1.447.712 | . | . | . | 143 |
| 1939 | 2.959.994 | 1.472.145 | 1.487.849 | . | . | . | 149 |
| 1950 | 3.004.784 | 1.400.911 | 1.603.873 | . | . | . | 151 |
| 1961 | 3.417.116 | 1.613.786 | 1.803.330 | 29.023 | 20.243 | 8.780 | 172 |
| 1970 | 3.645.437 | 1.738.212 | 1.907.225 | 81.255 | 51.128 | 30.127 | 184 |
| 1975 | 3.665.777 | 1.749.823 | 1.915.954 | 139.843 | 80.010 | 59.833 | 185 |
| 1980 | 3.642.482 | 1.741.137 | 1.901.345 | 169.619 | 96.101 | 73.518 | 184 |
| 1981 | 3.641.229 | 1.740.759 | 1.900.470 | 175.432 | 98.528 | 76.904 | 183 |
| 1982 | 3.636.506 | 1.738.284 | 1.898.222 | 176.389 | 98.007 | 78.382 | 183 |
| 1983 | 3.633.488 | 1.737.107 | 1.896.381 | 174.496 | 95.759 | 78.737 | 183 |
| 1984 | 3.623.985 | 1.733.948 | 1.890.037 | 171.196 | 93.577 | 77.619 | 183 |
| 1985 | 3.615.049 | 1.731.405 | 1.883.644 | 175.940 | 96.404 | 79.536 | 182 |
| 1986 | 3.611.437 | 1.732.019 | 1.879.418 | 184.457 | 101.285 | 83.172 | 182 |
| 1987 | 3.634.557 | 1.749.916 | 1.884.641 | 158.656 | 87.787 | 70.869 | 183 |
| 1988 | 3.653.155 | 1.761.059 | 1.892.096 | 174.728 | 96.250 | 78.478 | 184 |
| 1989 | 3.701.661 | 1.788.739 | 1.912.922 | 193.567 | 106.561 | 87.006 | 186 |
| 1990 | 3.763.510 | 1.825.328 | 1.938.182 | 218.954 | 121.862 | 97.092 | 190 |
| 1991 | 3.821.235 | 1.858.846 | 1.962.389 | 252.947 | 142.249 | 110.698 | 193 |
| 1992 | 3.880.965 | 1.892.925 | 1.988.040 | 260.498 | 149.121 | 111.377 | 195 |
| 1993 | 3.925.863 | 1.917.730 | 2.008.133 | 273.432 | 156.432 | 117.000 | 198 |
| 1994 | 3.951.573 | 1.930.324 | 2.021.249 | 284.324 | 160.588 | 123.736 | 199 |
| 1995 | 3.977.919 | 1.943.901 | 2.034.018 | 292.508 | 164.528 | 127.980 | 200 |
| 1996 | 4.000.567 | 1.957.188 | 2.043.379 | 302.099 | 169.130 | 132.969 | 202 |
| 1997 | 4.017.828 | 1.968.096 | 2.049.732 | 307.166 | 171.566 | 135.600 | 202 |
| 1998 | 4.024.969 | 1.972.267 | 2.052.702 | 305.593 | 170.235 | 135.358 | 203 |
| 1999 | 4.030.773 | 1.975.261 | 2.055.512 | 306.319 | 169.187 | 137.132 | 203 |
| 2000 | 4.034.557 | 1.976.814 | 2.057.743 | 302.436 | 165.427 | 137.009 | 203 |
| 2001 | 4.049.066 | 1.985.677 | 2.063.389 | 308.169 | 167.721 | 140.448 | 204 |
| 2002 | 4.057.727 | 1.991.331 | 2.066.396 | 311.710 | 168.251 | 143.459 | 204 |
| 2003 | 4.058.682 | 1.989.127 | 2.069.555 | 312.575 | 166.726 | 145.849 | 204 |
| 2004 | 4.061.105 | 1.991.975 | 2.069.130 | 311.556 | 165.516 | 146.040 | 205 |
| 2005 | 4.058.843 | 1.990.248 | 2.068.595 | 312.926 | 165.130 | 147.796 | 204 |
| 2006 | 4.052.860 | 1.987.553 | 2.065.307 | 312.905 | 164.723 | 148.182 | 204 |
| 2007 | 4.045.643 | 1.984.688 | 2.060.955 | 312.191 | 163.734 | 148.457 | 204 |
| 2008 | 4.028.351 | 1.977.031 | 2.051.320 | 308.302 | 161.180 | 147.122 | 203 |
| 2009 | 4.012.675 | 1.970.665 | 2.042.010 | 306.453 | 159.718 | 146.735 | 202 |
| 2010 | 4.003.745 | 1.967.106 | 2.036.639 | 308.609 | 160.861 | 147.748 | 202 |
| 2011 | 3.990.033 | 1.951.624 | 2.038.409 | 277.967 | 137.971 | 139.996 | 201 |
| 2012 | 3.990.278 | 1.954.161 | 2.036.117 | 289.723 | 144.852 | 144.871 | 201 |
| 2013 | 3.994.366 | 1.958.977 | 2.035.389 | 305.861 | 154.227 | 151.634 | 201 |
| 2014 | 4.011.582 | 1.970.535 | 2.041.047 | 330.953 | 168.961 | 161.992 | 202 |
| 2015 | 4.052.803 | 1.999.333 | 2.053.470 | 383.064 | 202.105 | 180.959 | 204 |
| 2016 | 4.066.053 | 2.006.503 | 2.059.550 | 410.612 | 217.333 | 193.279 | 205 |
| 2017 | 4.073.679 | 2.011.123 | 2.062.556 | 431.860 | 229.089 | 202.771 | 205 |
| 2018 | 4.084.844 | 2.017.576 | 2.067.268 | 452.723 | 240.417 | 212.306 | 206 |
| 1 Von 1871 - 1970 Ergebnisse der Volkszählungen, in den Folgejahren Fortschreibung auf Grundlage der jeweils zurückliegenden Zählung. | |||||||
