Voter Turnout
| Registered voters in City of Troutdale & Riverdale School District: 9,866 | |||
| Date | Ballot Returns | Cumulative | Turnout Percentage |
| 9/22-10/13/2015 | 3 | 3 | |
| 10/16/2015 | 25 | 28 | 0.284% |
| 10/19/2015 | 423 | 451 | 4.57% |
| 10/20/2015 | 143 | 594 | 6.02% |
| 10/21/2015 | 343 | 937 | 9.50% |
| 10/22/2015 | 424 | 1361 | 14.48% |
| 10/23/2015 | 68 | 1429 | 13.97% |
| 10/26/2015 | 402 | 1831 | 18.56% |
| 10/27/2015 | 76 | 1907 | 19.33% |
| 10/28/2015 | 167 | 2074 | 21.02% |
| 10/29/2015 | 183 | 2257 | 22.88% |
| 10/30/2015 | 89 | 2346 | 23.78% |
| 11/02/2015 | 282 | 2628 | 26.64% |
| 11/03/2015 | 612 | 3240 | 32.84% |