The 2009-2010 television season is the 64th network season in United States television history. It began on Monday, September 21, 2009 and ended on Sunday, May 30, 2010. The effective start date of the 2009-10 season for the purposes of audience measurement was Saturday, September 26, 2009 through Friday, September 24, 2010.
Top 10 ranking of designated market areas by number of television homes for the 2009-2010 TV season. See the complete 2009-2010 Nielsen DMA ranking.
| Rank | Market | TV Homes | Share |
|---|---|---|---|
| 1 | New York | 7,493,530 | 6.524% |
| 2 | Los Angeles | 5,659,170 | 4.927% |
| 3 | Chicago | 3,501,010 | 3.048% |
| 4 | Philadelphia | 2,955,190 | 2.573% |
| 5 | Dallas-Fort Worth | 2,544,410 | 2.215% |
| 6 | San Francisco-Oakland-San Jose | 2,503,400 | 2.179% |
| 7 | Boston-Manchester | 2,410,180 | 2.098% |
| 8 | Atlanta | 2,387,520 | 2.079% |
| 9 | Washington-Hagerstown | 2,335,040 | 2.033% |
| 10 | Houston | 2,123,460 | 1.849% |
Universe estimates used to calculate a program or network's rating within that particular demographic for the 2009-10 TV season. See the extended 2009-2010 universe estimates.
| Demographic | Population | Share |
|---|---|---|
| Households | 114,866,380 | |
| Persons 2+ | 292,040,000 | |
| Persons 2-11 | 41,140,000 | 14.1% |
| Persons 12-17 | 24,620,000 | 8.43% |
| Persons 18+ | 226,280,000 | 77.5% |
| Persons 18-34 | 68,270,000 | 23.4% |
| Persons 18-49 | 131,580,000 | 45.1% |
| Persons 25-54 | 124,290,000 | 42.6% |
| Persons 35+ | 158,010,000 | 54.1% |
| Persons 50+ | 94,700,000 | 32.4% |