The 1966-1967 television season is the 21st network season in United States television history. It began on Monday, September 5, 1966 and ended on Sunday, April 30, 1967. The effective start date of the 1966-67 season for the purposes of audience measurement was Sunday, September 4, 1966 through Saturday, September 2, 1967.
Universe estimates used to calculate a program or network's rating within that particular demographic for the 1966-67 TV season.
| Demographic | Population | Share |
|---|---|---|
| Households | 55,153,000 | |
| Persons 2+ | 165,459,000 |