2004–05 FA Cup First round proper First round proper

| Tie_no | Home_team | Score | Away_team | Attendance |
|---|---|---|---|---|
| 20 | Mansfield Town | 1 – 1 | Colchester United | 3202 |
| replay | Colchester United | 4 – 1 | Mansfield Town | 2492 |
| 21 | Alfreton Town | 1 – 1 | Macclesfield Town | 2251 |
| replay | Macclesfield Town | 2 – 0 | Alfreton Town | 1783 |
| 22 | Port Vale | 3 – 1 | Kidderminster Harriers | 4141 |
| 23 | Halifax Town | 3 – 1 | Cambridge United | 2368 |
| 24 | Cheltenham Town | 1 – 3 | Swansea City | 4551 |
| 25 | Southport | 1 – 3 | Hereford United | 2045 |
| 26 | Hayes | 0 – 4 | Wrexham | 1751 |
| 27 | Tiverton Town | 1 – 3 | Doncaster Rovers | 1618 |
| 28 | Boston United | 5 – 2 | Hornchurch | 2437 |
| 29 | Peterborough United | 2 – 1 | Tranmere Rovers | 2940 |