ER (TV series) Ratings Ratings

| Season | Season_premiere | Season_finale | TV_season | Viewer_rank_ | Households_Viewers_in_millions |
|---|---|---|---|---|---|
| 1 | September 19, 1994 | May 18, 1995 | 1994–1995 | #2 | 19.08 |
| 2 | September 21, 1995 | May 16, 1996 | 1995–1996 | #1 | 21.10 |
| 3 | September 26, 1996 | May 15, 1997 | 1996–1997 | #1 | 20.56 |
| 4 | September 25, 1997 | May 14, 1998 | 1997–1998 | #2 | 30.2 |
| 5 | September 24, 1998 | May 20, 1999 | 1998–1999 | #1 | 25.4 |
| 6 | September 30, 1999 | May 18, 2000 | 1999–2000 | #4 | 24.95 |
| 7 | October 12, 2000 | May 17, 2001 | 2000–2001 | #2 | 22.4 |
| 8 | September 27, 2001 | May 16, 2002 | 2001–2002 | #3 | 22.1 |
| 9 | September 26, 2002 | May 15, 2003 | 2002–2003 | #6 | 19.99 |
| 10 | September 25, 2003 | May 13, 2004 | 2003–2004 | #8 | 19.04 |