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| 5 NFL championship seasons: 1981, 1984, 1988, 1989, 1994 |
| Last NFL championship: 1994, 29 seasons ago |
| Best finish: |
| beat Cincinnati in Super Bowl in 1981 season |
| beat Miami in Super Bowl in 1984 season |
| beat Cincinnati in Super Bowl in 1988 season |
| beat Denver in Super Bowl in 1989 season |
| beat San Diego in Super Bowl in 1994 season |
| TEAM | SEAS | RECORD | PERC | DIV STAND | CNF STAND | PLAYOFFS |
| San Francisco | 1950 | 3-9 | .250 | 6th National | missed playoffs | |
| San Francisco | 1951 | 7-4-1 | .636 | 3rd National | missed playoffs | |
| San Francisco | 1952 | 7-5 | .583 | 3rd National | missed playoffs | |
| San Francisco | 1953 | 9-3 | .750 | 2nd NFL West | missed playoffs | |
| San Francisco | 1954 | 7-4-1 | .636 | 3rd NFL West | missed playoffs | |
| San Francisco | 1955 | 4-8 | .333 | 5th NFL West | missed playoffs | |
| San Francisco | 1956 | 5-6-1 | .455 | 3rd NFL West | missed playoffs | |
| San Francisco | 1957 | 8-4 | .667 | 2nd NFL West | LDet | |
| San Francisco | 1958 | 6-6 | .500 | 4th NFL West | missed playoffs | |
| San Francisco | 1959 | 7-5 | .583 | 4th NFL West | missed playoffs | |
| San Francisco | 1960 | 7-5 | .583 | 3rd NFL West | missed playoffs | |
| San Francisco | 1961 | 7-6-1 | .538 | 5th NFL West | missed playoffs | |
| San Francisco | 1962 | 6-8 | .429 | 5th NFL West | missed playoffs | |
| San Francisco | 1963 | 2-12 | .143 | 7th NFL West | missed playoffs | |
| San Francisco | 1964 | 4-10 | .286 | 7th NFL West | missed playoffs | |
| San Francisco | 1965 | 7-6-1 | .538 | 4th NFL West | missed playoffs | |
| San Francisco | 1966 | 6-6-2 | .500 | 4th NFL West | missed playoffs | |
| San Francisco | 1967 | 7-7 | .500 | 3rd NFL Coastal | missed playoffs | |
| San Francisco | 1968 | 7-6-1 | .538 | 3rd NFL Coastal | missed playoffs | |
| San Francisco | 1969 | 4-8-2 | .333 | 4th NFL Coastal | missed playoffs | |
| San Francisco | 1970 | 10-3-1 | .769 | 1st NFC West | WMin LDal | |
| San Francisco | 1971 | 9-5 | .643 | 1st NFC West | WWsR LDal | |
| San Francisco | 1972 | 8-5-1 | .607 | 1st NFC West | LDal | |
| San Francisco | 1973 | 5-9 | .357 | 4th NFC West | missed playoffs | |
| San Francisco | 1974 | 6-8 | .429 | 2nd NFC West | missed playoffs | |
| San Francisco | 1975 | 5-9 | .357 | 2nd NFC West | T7th NFC | missed playoffs |
| San Francisco | 1976 | 8-6 | .571 | 2nd NFC West | 6th NFC | missed playoffs |
| San Francisco | 1977 | 5-9 | .357 | 3rd NFC West | T9th NFC | missed playoffs |
| San Francisco | 1978 | 2-14 | .143 | 4th NFC West | 14th NFC | missed playoffs |
| San Francisco | 1979 | 2-14 | .143 | 4th NFC West | T13th NFC | missed playoffs |
| San Francisco | 1980 | 6-10 | .375 | 3rd NFC West | T8th NFC | missed playoffs |
| %San Francisco | 1981 | 13-3 | .812 | 1st NFC West | 1st NFC | bye WNYG WDal WCin |
| San Francisco | 1982 | 3-6 | .333 | 3rd NFC West | T11th NFC | missed playoffs |
| San Francisco | 1983 | 10-6 | .625 | 1st NFC West | 2nd NFC | bye WDet LWsR |
| %San Francisco | 1984 | 15-1 | .938 | 1st NFC West | 1st NFC | bye WNYG WChi WMia |
| San Francisco | 1985 | 10-6 | .625 | 2nd NFC West | 5th NFC | LNYG |
| San Francisco | 1986 | 10-5-1 | .656 | 1st NFC West | 3rd NFC | bye LNYG |
| San Francisco | 1987 | 13-2 | .867 | 1st NFC West | 1st NFC | bye LMin |
| %San Francisco | 1988 | 10-6 | .625 | 1st NFC West | 2nd NFC | bye WMin WChi WCin |
| %San Francisco | 1989 | 14-2 | .875 | 1st NFC West | 1st NFC | bye WMin WLAR WDen |
| San Francisco | 1990 | 14-2 | .875 | 1st NFC West | 1st NFC | bye WWsR LNYG |
| San Francisco | 1991 | 10-6 | .625 | 3rd NFC West | T7th NFC | missed playoffs |
| San Francisco | 1992 | 14-2 | .875 | 1st NFC West | 1st NFC | bye WWsR LDal |
| San Francisco | 1993 | 10-6 | .625 | 1st NFC West | 2nd NFC | bye WNYG LDal |
| %San Francisco | 1994 | 13-3 | .812 | 1st NFC West | 1st NFC | bye WChi WDal WSD |
| San Francisco | 1995 | 11-5 | .688 | 1st NFC West | 2nd NFC | bye LGB |
| San Francisco | 1996 | 12-4 | .750 | 2nd NFC West | 4th NFC | WPhi LGB |
| San Francisco | 1997 | 13-3 | .812 | 1st NFC West | 1st NFC | bye WMin LGB |
| San Francisco | 1998 | 12-4 | .750 | 2nd NFC West | 4th NFC | WGB LAtl |
| San Francisco | 1999 | 4-12 | .250 | 4th NFC West | 14th NFC | missed playoffs |
| San Francisco | 2000 | 6-10 | .375 | 4th NFC West | 11th NFC | missed playoffs |
| San Francisco | 2001 | 12-4 | .750 | 2nd NFC West | 4th NFC | LGB |
| San Francisco | 2002 | 10-6 | .625 | 1st NFC West | 4th NFC | WNYG LTB |
| San Francisco | 2003 | 7-9 | .438 | 3rd NFC West | T9th NFC | missed playoffs |
| San Francisco | 2004 | 2-14 | .125 | 4th NFC West | 16th NFC | missed playoffs |
| San Francisco | 2005 | 4-12 | .250 | 4th NFC West | T14th NFC | missed playoffs |
| San Francisco | 2006 | 7-9 | .438 | 3rd NFC West | T10th NFC | missed playoffs |
| San Francisco | 2007 | 5-11 | .313 | 3rd NFC West | 14th NFC | missed playoffs |
| San Francisco | 2008 | 7-9 | .438 | 2nd NFC West | 12th NFC | missed playoffs |
| San Francisco | 2009 | 8-8 | .500 | 2nd NFC West | T8th NFC | missed playoffs |
| San Francisco | 2010 | 6-10 | .375 | 3rd NFC West | T10th NFC | missed playoffs |
| San Francisco | 2011 | 13-3 | .812 | 1st NFC West | 2nd NFC | bye WNO LNYG |
| San Francisco | 2012 | 11-4-1 | .719 | 1st NFC West | 2nd NFC | bye WGB WAtl LBal |
| San Francisco | 2013 | 12-4 | .750 | 2nd NFC West | 5th NFC | WGB WCar LSea |
| San Francisco | 2014 | 8-8 | .500 | 3rd NFC West | 8th NFC | missed playoffs |
| San Francisco | 2015 | 5-11 | .312 | 4th NFC West | 15th NFC | missed playoffs |
| San Francisco | 2016 | 2-14 | .125 | 4th NFC West | 16th NFC | missed playoffs |
| San Francisco | 2017 | 6-10 | .375 | 4th NFC West | 13th NFC | missed playoffs |
| San Francisco | 2018 | 4-12 | .250 | 3rd NFC West | 15th NFC | missed playoffs |
| San Francisco | 2019 | 13-3 | .812 | 1st NFC West | 1th NFC | bye WMin WGB LKC |
| San Francisco | 2020 | 6-10 | .375 | 4th NFC West | T10th NFC | missed playoffs |
| San Francisco | 2021 | 10-7 | .588 | 3rd NFC West | 6th NFC | WDal WGB LLAR |
| San Francisco | 2022 | 13-4 | .765 | 1st NFC West | 2nd NFC | WSea WDal LPhi |
| San Francisco | 2023 | 12-5 | .706 | 1st NFC West | 1st NFC | bye WGB WDet LKC |