League of Ireland Premier 2021 Defence Stats
| Team | Goals against | Avg per game | Clean Sheets | |
| 1 | 0 | nan | 0 | |
| 2 | Shamrock Rovers | 27 | 0.77 | 13 |
| 3 | Sligo Rovers | 31 | 0.89 | 13 |
| 4 | Derry City | 41 | 1.17 | 9 |
| 5 | Drogheda United | 41 | 1.17 | 8 |
| 6 | St Patrick's Athletic | 42 | 1.20 | 10 |
| 7 | Dundalk | 44 | 1.26 | 8 |
| 8 | Bohemians | 45 | 1.29 | 8 |
| 9 | Finn Harps | 52 | 1.49 | 5 |
| 10 | Waterford United | 56 | 1.60 | 5 |
Home Table
| Team | Goals against | Avg per game | Clean Sheets | |
| 1 | 0 | nan | 0 | |
| 2 | Shamrock | 12 | 0.71 | 5 |
| 3 | Sligo | 12 | 0.71 | 7 |
| 4 | Drogheda | 17 | 0.94 | 4 |
| 5 | St Patrick's | 18 | 1.00 | 7 |
| 6 | Derry | 20 | 1.11 | 6 |
| 7 | Dundalk | 20 | 1.18 | 4 |
| 8 | Bohemians | 22 | 1.22 | 5 |
| 9 | Finn Harps | 22 | 1.29 | 2 |
| 10 | Waterford | 29 | 1.71 | 4 |
Away Table
| Team | Goals against | Avg per game | Clean Sheets | |
| 1 | 0 | nan | 0 | |
| 2 | Shamrock | 15 | 0.83 | 8 |
| 3 | Sligo | 19 | 1.06 | 6 |
| 4 | Derry | 21 | 1.24 | 3 |
| 5 | Bohemians | 23 | 1.35 | 3 |
| 6 | Dundalk | 24 | 1.33 | 4 |
| 7 | Drogheda | 24 | 1.41 | 4 |
| 8 | St Patrick's | 24 | 1.41 | 3 |
| 9 | Waterford | 27 | 1.50 | 1 |
| 10 | Finn Harps | 30 | 1.67 | 3 |
Own Goals Conceded
| Team | Conceded | |||
| 1 | Shamrock | 2 | ||
| 2 | St Patrick's | 2 | ||
| 3 | Finn Harps | 1 | ||
| 4 | Waterford | 1 | ||
| 5 | 0 | |||
| 6 | Bohemians | 0 | ||
| 7 | Derry | 0 | ||
| 8 | Drogheda | 0 | ||
| 9 | Dundalk | 0 | ||
| 10 | Sligo | 0 |
Goals Conceded in first 15 min
| Team | Goals | |||
| 1 | Dundalk | 9 | ||
| 2 | Finn Harps | 8 | ||
| 3 | Shamrock | 7 | ||
| 4 | Sligo | 7 | ||
| 5 | Waterford | 7 | ||
| 6 | Bohemians | 4 | ||
| 7 | St Patrick's | 4 | ||
| 8 | Derry | 3 | ||
| 9 | Drogheda | 3 | ||
| 10 | 0 |
Goals Conceded in first half
| Team | Goals | |||
| 1 | Waterford | 28 | ||
| 2 | Finn Harps | 26 | ||
| 3 | Dundalk | 23 | ||
| 4 | Derry | 19 | ||
| 5 | St Patrick's | 17 | ||
| 6 | Bohemians | 16 | ||
| 7 | Shamrock | 16 | ||
| 8 | Sligo | 14 | ||
| 9 | Drogheda | 10 | ||
| 10 | 0 |
Goals Conceded in second half
| Team | Goals | |||
| 1 | Drogheda | 31 | ||
| 2 | Bohemians | 29 | ||
| 3 | Finn Harps | 26 | ||
| 4 | St Patrick's | 25 | ||
| 5 | Waterford | 25 | ||
| 6 | Derry | 22 | ||
| 7 | Dundalk | 21 | ||
| 8 | Sligo | 17 | ||
| 9 | Shamrock | 11 | ||
| 10 | 0 |
