A strong end to the season on the 2021 MLS attendance front, as good crowds in Seattle and New England helped push the league officially past the six-million mark to end the season.
We say officially, as we track numbers that are only posted on the league website and occasionally on team press releases when available. Still, hese 2021 MLS attendance numbers are not complete. We have based this ranking on numbers officially posted to the MLS website, as well as newspaper coverage. Several teams have not released attendance for many games, such as the majority of Vancouver Whitecaps, NYC FC and San Jose matches. There are a few cases where teams like Toronto FC, CF Montreal and NYC FC were playing “home” games away from their regular homes and their attendance was reported. One other issue that’s emerged: teams have gone to previous matches and revised the attendance numbers. So we will do the same and update our numbers and await the reporting of official numbers from MLS. The total attendance for MLS this season is higher than our total, but the per-game average is likely very lower.
Here are both season and Week 35 totals for 2021 MLS attendance, as of Nov. 7:
| Team | Av. | Total | Gms | 2019 | YOY | W35 | |
| 1 | Atlanta United FC | 43,965 | 747,406 | 17 | 52,510 | -0.16 | |
| 2 | Seattle Sounders | 25,125 | 427,121 | 17 | 40,247 | -0.38 | 32,781 |
| 3 | Portland Timbers | 21,285 | 255,422 | 12 | 25,218 | -0.16 | 23,127 |
| 4 | FC Cincinnati | 21,175 | 359,969 | 17 | 27,336 | -0.23 | 23,663 |
| 5 | Austin FC | 20,738 | 290,332 | 14 | N/A | N/A | 20,738 |
| 6 | LAFC | 20,204 | 323,271 | 16 | 22,251 | -0.09 | 22,221 |
| 7 | Nashville SC | 19,172 | 287,583 | 15 | N/A | N/A | 26,913 |
| 8 | NE Revolution | 18,861 | 207,476 | 11 | 16,737 | 0.13 | 31,635 |
| 9 | Sporting KC | 18,757 | 262,603 | 14 | 18,601 | 0.01 | 19,022 |
| 10 | Columbus Crew | 16,344 | 261,511 | 16 | 14,856 | 0.10 | 19,351 |
| 11 | Orlando City SC | 15,418 | 231,270 | 15 | 22,761 | -0.32 | |
| 12 | Real Salt Lake | 15,253 | 228,798 | 15 | 18,121 | -0.16 | 18,405 |
| 13 | Minnesota United | 14,326 | 171,908 | 12 | 19,723 | -0.27 | |
| 14 | Inter Miami CF | 13,847 | 235,403 | 17 | N/A | N/A | |
| 15 | LA Galaxy | 13,400 | 227,806 | 17 | 23,205 | -0.42 | 23,803 |
| 16 | San Jose Earthquakes | 13,171 | 144,886 | 11 | 18,781 | -0.30 | |
| 17 | New York Red Bulls | 13,161 | 171,099 | 13 | 17,281 | -0.24 | 15,934 |
| 18 | FC Dallas | 13,063 | 209,014 | 16 | 14,842 | -0.12 | |
| 19 | Philadelphia Union | 12,903 | 193,552 | 15 | 17,111 | -0.25 | |
| 20 | D.C. United | 12,715 | 203,441 | 16 | 17,744 | -0.28 | |
| 21 | Houston Dynamo | 11,732 | 187,711 | 16 | 15,674 | -0.25 | |
| 22 | Colorado Rapids | 11,551 | 127,065 | 11 | 14,284 | -0.19 | 16,292 |
| 23 | Vancouver Whitecaps | 10,741 | 32,222 | 3 | 19,514 | -0.45 | NA |
| 24 | Chicago Fire | 10,443 | 167,091 | 16 | 12,324 | -0.15 | |
| 25 | Toronto FC | 8,733 | 96,065 | 11 | 25,048 | -0.65 | 11,166 |
| 26 | NYC FC | 5,429 | 32,576 | 6 | 21,107 | -0.74 | NA |
| 27 | CF Montreal | 5,000 | 5,000 | 1 | 16,171 | -0.69 | NA |
| TOTALS | 16,910 | 6,087,601 | 360 | 21,873 | -0.23 | ||
| WEEKLY AV. | 21,789 |