The 2004-2005 television season is the 59th network season in United States television history. It began on Monday, September 20, 2004 and ended on Sunday, May 29, 2005. The effective start date of the 2004-05 season for the purposes of audience measurement was Monday, September 20, 2004 through Friday, September 23, 2005.
Top 10 ranking of designated market areas by number of television homes for the 2004-2005 TV season. See the complete 2004-2005 Nielsen DMA ranking.
| Rank | Market | TV Homes | Share |
|---|---|---|---|
| 1 | New York | 7,355,710 | 6.712% |
| 2 | Los Angeles | 5,431,140 | 4.956% |
| 3 | Chicago | 3,417,330 | 3.118% |
| 4 | Philadelphia | 2,919,410 | 2.664% |
| 5 | Boston-Manchester | 2,391,840 | 2.183% |
| 6 | San Francisco-Oakland-San Jose | 2,359,870 | 2.153% |
| 7 | Dallas-Fort Worth | 2,292,760 | 2.092% |
| 8 | Washington-Hagerstown | 2,241,610 | 2.045% |
| 9 | Atlanta | 2,059,450 | 1.879% |
| 10 | Detroit | 1,943,930 | 1.774% |
Universe estimates used to calculate a program or network's rating within that particular demographic for the 2004-05 TV season. See the extended 2004-2005 universe estimates.
| Demographic | Population | Share |
|---|---|---|
| Households | 109,590,170 | |
| Persons 2+ | 277,930,000 | |
| Persons 2-11 | 39,640,000 | 14.3% |
| Persons 12-17 | 24,560,000 | 8.84% |
| Persons 18+ | 213,730,000 | 76.9% |
| Persons 18-34 | 65,410,000 | 23.5% |
| Persons 18-49 | 129,870,000 | 46.7% |
| Persons 25-54 | 121,690,000 | 43.8% |
| Persons 35+ | 148,320,000 | 53.4% |
| Persons 50+ | 83,860,000 | 30.2% |