This forum does one of the best jobs tracking it. They are still missing a handful of games. http://forums.bigsoccer.com/threads/2016-usl-attendance-thread.2030377/page-12
Unofficial, but with 92% of games now reported: This was before this weekend.
Team..............................G....Total...Average FC Cincinnati....................10...164,109..16,411 Sacramento Republic FC...........10...114,866..11,487 Louisville City FC................9....65,531...7,281 San Antonio FC....................9....55,978...6,220 OKC Energy FC.....................8....40,777...5,097 Saint Louis FC....................8....39,181...4,898 Tulsa Roughnecks FC..............10....42,248...4,225 Richmond Kickers..................8....33,766...4,221 Charleston Battery................6....23,915...3,986 Rochester Rhinos..................8....29,733...3,717 Wilmington Hammerheads FC.........8....24,665...3,083 Colorado Springs Switchbacks FC...8....24,410...3,051 Bethlehem Steel FC................8....21,176...2,647 Portland Timbers 2...............11....25,271...2,297 Pittsburgh Riverhounds............7....14,888...2,127 Real Monarchs SLC.................7....14,754...2,108 Swope Park Rangers KC.............7....13,895...1,985 Rio Grande Valley FC..............7....13,794...1,971 Arizona United SC.................8....14,183...1,773 Vancouver Whitecaps FC 2..........7....12,178...1,740 Harrisburg City Islanders.........9....12,889...1,432 Charlotte Independence...........10....14,284...1,428 Seattle Sounders FC 2............11....15,037...1,367 LA Galaxy II.....................10....11,184...1,118 Orange County Blues FC............8.....8,504...1,063 Orlando City B...................10....10,389...1,039 Toronto FC II....................10....10,115...1,012 FC Montreal.......................4.....2,339.....585 New York Red Bulls II.............7.....2,663.....380 USL TOTAL.......................243...876,722...3,608
Games still missing:
Bethlehem (7/21 vs. HBG) Charleston (5/28 vs. LVL, 6/11 vs. ORL, 7/2 vs. RIC) C. Springs (5/27 vs. OC) Montreal (6/26 vs. ORL, 7/9 vs. NYRB) Harrisburg (7/10 vs. TOR) Los Angeles (5/28 vs. AZU) New York (5/28 vs. PIT, 6/9 vs. HBG) Orange County (6/4 vs. SEA) Orlando (5/28 vs. CLT) Pittsburgh (7/4 vs. HBG) Real Monarchs (7/2 vs. VAN, 7/22 vs. AZU) Rio Grande Valley (6/11 vs. OKC, 6/26 vs. OC) Rochester (5/28 vs. BSFC, 7/10 vs ORL) Wilmington (6/3 vs. HBG)