How many home runs did Mike Piazza have in 2004?
202004 Regular Season
Mike Piazza recorded 20 home runs in the 2004 regular season, 87th in the MLB.
- 12th-best of Mike Piazza's 16 seasons on file; the high is 40 in 1997.
- Up 9 from 11 in 2003.
- 14% of the New York Mets' home runs that regular season.
Figures come from ESPN's box scores and were last read on September 23, 2026.
| GP: Games the player appeared in, however briefly. | AB: At-bats: trips to the plate that ended in a hit, an out or an error. Walks and sacrifices are not counted. | R: Runs — scored by the batter, or allowed by the pitcher. | H: Times the batter reached base by hitting the ball, without help from an error. | HR: Home runs hit. | RBI: Runs that scored because of this batter's plate appearance. | SB: Bases taken while the pitcher was delivering. Being caught is counted separately. | AVG: Hits per at-bat. .300 is the traditional line between a good hitter and a great one. | OBP: Share of plate appearances that ended with the batter on base — hits, walks and hit-by-pitches. | SLG: Total bases per at-bat, so a home run counts four times a single. | OPS: On-base percentage plus slugging. Around .800 is All-Star level, .900 is MVP territory. | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1992 |  LAD | 21 | 69 | 5 | 16 | 1 | 7 | 0 | .232 | .284 | .319 | .603 |
| 1993 | LAD | 149 | 547 | 81 | 174 | 35 | 112 | 3 | .318 | .370 | .561 | .932 |
| 1994 | LAD | 107 | 405 | 64 | 129 | 24 | 92 | 1 | .319 | .370 | .541 | .910 |
| 1995 | LAD | 112 | 434 | 82 | 150 | 32 | 93 | 1 | .346 | .400 | .606 | 1.006 |
| 1996 | LAD | 148 | 547 | 87 | 184 | 36 | 105 | 0 | .336 | .422 | .563 | .985 |
| 1997 | LAD | 152 | 556 | 104 | 201 | 40 | 124 | 5 | .362 | .431 | .638 | 1.070 |
| 1998 |  LAD/NYM/MIA | 151 | 561 | 88 | 184 | 32 | 111 | 1 | .328 | .390 | .570 | .960 |
| 1999 |  NYM | 141 | 534 | 100 | 162 | 40 | 124 | 2 | .303 | .361 | .575 | .936 |
| 2000 | NYM | 136 | 482 | 90 | 156 | 38 | 113 | 4 | .324 | .398 | .614 | 1.012 |
| 2001 | NYM | 141 | 503 | 81 | 151 | 36 | 94 | 0 | .300 | .384 | .573 | .957 |
| 2002 | NYM | 135 | 478 | 69 | 134 | 33 | 98 | 0 | .280 | .359 | .544 | .903 |
| 2003 | NYM | 68 | 234 | 37 | 67 | 11 | 34 | 0 | .286 | .377 | .483 | .860 |
| 2004 | NYM | 129 | 455 | 47 | 121 | 20 | 54 | 0 | .266 | .362 | .444 | .806 |
| 2005 | NYM | 113 | 398 | 41 | 100 | 19 | 62 | 0 | .251 | .326 | .452 | .778 |
| 2006 |  SD | 126 | 399 | 39 | 113 | 22 | 68 | 0 | .283 | .342 | .501 | .843 |
| 2007 |  ATH | 83 | 309 | 33 | 85 | 8 | 44 | 0 | .275 | .313 | .414 | .727 |
What the columns mean: AB · R · H · HR · RBI · SB · AVG · OBP · SLG · OPS