| Population Projection Series | |||||||||||||||
| June 29, 2000 | |||||||||||||||
| City of Dover | |||||||||||||||
| Total Population | |||||||||||||||
| [As of July 1] | |||||||||||||||
| 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2005 | 2010 | 2015 | 2020 | |
| 0 - 4 | 1972 | 2012 | 2028 | 2040 | 2031 | 2009 | 1963 | 1933 | 1911 | 1885 | 1854 | 1783 | 1810 | 1857 | 1866 |
| 5 - 9 | 1835 | 1884 | 1911 | 1948 | 1980 | 2010 | 2002 | 2000 | 1991 | 1986 | 1969 | 1888 | 1815 | 1809 | 1850 |
| 10 - 14 | 1671 | 1736 | 1783 | 1834 | 1866 | 1886 | 1891 | 1902 | 1916 | 1930 | 1935 | 1982 | 1897 | 1790 | 1777 |
| 15 - 19 | 2607 | 2532 | 2502 | 2524 | 2547 | 2582 | 2629 | 2666 | 2713 | 2758 | 2790 | 2856 | 2923 | 2745 | 2580 |
| 20 - 24 | 3467 | 3529 | 3485 | 3479 | 3365 | 3277 | 3139 | 3073 | 3067 | 3032 | 2997 | 3561 | 3650 | 3670 | 3437 |
| 25 - 29 | 2462 | 2471 | 2433 | 2424 | 2391 | 2397 | 2384 | 2345 | 2290 | 2246 | 2188 | 2031 | 2418 | 2426 | 2432 |
| 30 - 34 | 2255 | 2326 | 2358 | 2400 | 2411 | 2443 | 2394 | 2341 | 2297 | 2252 | 2196 | 2144 | 1975 | 2307 | 2305 |
| 35 - 39 | 1936 | 2041 | 2130 | 2236 | 2308 | 2401 | 2420 | 2437 | 2445 | 2460 | 2458 | 2292 | 2244 | 2014 | 2349 |
| 40 - 44 | 1819 | 1899 | 1910 | 1957 | 1994 | 2051 | 2111 | 2179 | 2258 | 2334 | 2403 | 2422 | 2270 | 2176 | 1947 |
| 45 - 49 | 1486 | 1556 | 1665 | 1749 | 1821 | 1914 | 1959 | 1954 | 1977 | 1986 | 1991 | 2489 | 2506 | 2308 | 2204 |
| 50 - 54 | 1153 | 1199 | 1240 | 1302 | 1340 | 1390 | 1421 | 1506 | 1557 | 1633 | 1691 | 1757 | 2195 | 2167 | 1995 |
| 55 - 59 | 1162 | 1172 | 1174 | 1193 | 1204 | 1219 | 1240 | 1271 | 1312 | 1352 | 1387 | 1768 | 1833 | 2250 | 2208 |
| 60 - 64 | 1010 | 1036 | 1047 | 1062 | 1066 | 1083 | 1069 | 1062 | 1067 | 1065 | 1060 | 1392 | 1772 | 1804 | 2212 |
| 65 - 69 | 940 | 947 | 946 | 966 | 966 | 972 | 983 | 991 | 999 | 1008 | 1012 | 1013 | 1327 | 1662 | 1679 |
| 70 - 74 | 695 | 735 | 764 | 798 | 826 | 851 | 847 | 849 | 851 | 853 | 852 | 924 | 926 | 1191 | 1487 |
| 75 - 79 | 557 | 573 | 587 | 605 | 617 | 635 | 662 | 685 | 706 | 731 | 751 | 729 | 789 | 778 | 997 |
| 80 - 84 | 360 | 373 | 380 | 395 | 406 | 421 | 428 | 441 | 452 | 465 | 474 | 566 | 549 | 580 | 570 |
| 85 & up | 364 | 378 | 383 | 395 | 403 | 414 | 423 | 434 | 444 | 454 | 462 | 500 | 576 | 570 | 587 |
| Totals | 27751 | 28399 | 28726 | 29307 | 29542 | 29955 | 29965 | 30069 | 30253 | 30430 | 30470 | 32097 | 33475 | 34104 | 34482 |