Says Philly.com:

Last Wednesday’s win over FC Cincinnati drew an announced crowd of 12,890, the lowest figure for a league game in team history.

The previous low of 14,784 came in September 2015. Some U.S. Open Cup games and international friendlies have drawn fewer fans, but those tickets are sold outside of season-ticket packages.

Saturday’s rout of New England, which the Union started and ended in first place, drew just 15,565. And that’s tickets sold and distributed, not tickets torn at the gate.

This year’s per-game average of 15,223 through six games is down nearly 1,300 fans per game from last year’s average of 16,518.

It’s down more than 4,000 from the Union’s inaugural season in 2010, which included two games at Lincoln Financial Field, when they averaged 19,254. Attendance is down 3,000 from the average of 18,259 in 2011 (the first full year in Chester).

https://www.philly.com/soccer/philadelphia-union-attendance-sergio-santos-alejandro-bedoya-kai-wagner-20190506.html