| OLYMPIC CITY | YEAR | FROM | TO | NO. OF ATHLETES | TOTAL | NO. OF COUNTRIES |
|
| MALE | FEMALE | ||||||
| Athens | 1896 | 06 Apr | 15 Apr | 241 | 0 | 241 | 14 |
| Paris | 1900 | 14 May | 28 Oct | 975 | 22 | 997 | 24 |
| St. Louis | 1904 | 01 Jul | 23 Nov | 645 | 6 | 651 | 12 |
| London | 1908 | 27 Apr | 31 Oct | 1971 | 37 | 2008 | 22 |
| Stockholm | 1912 | 05 May | 27 Jul | 2359 | 48 | 2407 | 28 |
| Antwerp | 1920 | 20 Apr | 12 Sep | 2561 | 65 | 2626 | 29 |
| Paris | 1924 | 04 May | 27 Jul | 2954 | 135 | 3089 | 44 |
| Amsterdam | 1928 | 17 May | 12 Aug | 2606 | 277 | 2883 | 46 |
| Los Angeles | 1932 | 30 Jul | 14 Aug | 1206 | 126 | 1332 | 37 |
| Berlin | 1936 | 01 Aug | 16 Aug | 3632 | 331 | 3963 | 49 |
| London | 1948 | 29 Jul | 14 Aug | 3714 | 390 | 4104 | 59 |
| Helsinki | 1952 | 19 Jul | 03 Aug | 4436 | 519 | 4955 | 69 |
| Melbourne | 1956 | 22 Nov | 08 Dec | 2938 | 376 | 3314 | 72 |
| Rome | 1960 | 25 Aug | 11 Sep | 4727 | 611 | 5338 | 83 |
| Tokyo | 1964 | 10 Oct | 24 Oct | 4473 | 678 | 5151 | 93 |
| Mexico City | 1968 | 12 Oct | 27 Oct | 4735 | 781 | 5516 | 112 |
| Munich | 1972 | 26 Aug | 11 Sep | 6075 | 1059 | 7134 | 121 |
| Montreal | 1976 | 17 Jul | 01 Aug | 4824 | 1260 | 6084 | 92 |
| Moscow | 1980 | 19 Jul | 03 Aug | 4064 | 1115 | 5179 | 80 |
| Los Angeles | 1984 | 28 Jul | 12 Aug | 5263 | 1566 | 6829 | 140 |
| Seoul | 1988 | 17 Sep | 02 Oct | 6197 | 2194 | 8391 | 159 |
| Barcelona | 1992 | 25 Jul | 09 Aug | 6652 | 2704 | 9356 | 169 |
| Atlanta | 1996 | 19 Jul | 04 Aug | 6806 | 3512 | 10318 | 197 |
| Sydney | 2000 | 15 Sep | 01 Oct | 6582 | 4069 | 10651 | 199 |
| Athens | 2004 | 13 Aug | 29 Aug | 6296 | 4329 | 10625 | 20 |
| Beijing | 2008 | 8 Aug | 24 Aug | no data | no data | 10500 | 204 |
