Nielsen Ratings
| Season | Premiere | Finale | Episodes | Timeslot | Rank | Viewers (in millions) |
|---|---|---|---|---|---|---|
| Season 1 | September 21, 1993 | May 17, 1994 | 22 | Tuesday 10:00 pm | #18 | 13.0 |
| Season 2 | October 11, 1994 | May 23, 1995 | 22 | #7 | 15.7 | |
| Season 3 | October 24, 1995 | May 21, 1996 | 22 | #10 | 13.5 | |
| Season 4 | October 15, 1996 | May 20, 1997 | 22 | #13 | 12.1 | |
| Season 5 | September 9, 1997 | May 19, 1998 | 22 | #17 | 10.5 | |
| Season 6 | October 20, 1998 | May 25, 1999 | 22 | #12 | 10.4 | |
| Season 7 | January 11, 2000 | May 23, 2000 | 22 | #17 | 15.5 | |
| Season 8 | January 9, 2001 | May 22, 2001 | 20 | #23 | 16.2 | |
| Season 9 | November 6, 2001 | May 21, 2002 | 22 | Tuesday 9:00 pm | #31 | 12.3 |
| Season 10 | September 24, 2002 | May 20, 2003 | 22 | Tuesday 10:00 pm | #34 | 11.3 |
| Season 11 | September 23, 2003 | May 11, 2004 | 22 | #51 | 9.9 | |
| Season 12 | September 21, 2004 | March 1, 2005 | 20 | #42 | 10.1 |
Read more about this topic: NYPD Blue