Attendance figures for the first year of the third-division USL League One. I stopped compiling USL numbers after 2019, so “All-Time” is a bit of a misnomer. Apologies.
| USL League One 2019 | G | Total | Average |
| Forward Madison | 14 | 60,083 | 4,292 |
| Richmond Kickers | 14 | 48,555 | 3,468 |
| Lansing Ignite | 14 | 38,614 | 2,758 |
| Greenville Triumph | 14 | 35,131 | 2,509 |
| South Georgia Tormenta | 14 | 24,133 | 1,724 |
| Chattanooga Red Wolves | 14 | 22,842 | 1,632 |
| North Texas SC | 14 | 19,136 | 1,367 |
| FC Tucson | 14 | 13,451 | 961 |
| Orlando City B | 14 | 2,836 | 203 |
| Toronto FC II | 14 | 2,358 | 168 |
| USL1 TOTAL | 140 | 267,139 | 1,908 |