| Tuesday, December 18, 2018 8:15 AM | All | % of Reg | Dem | % of Reg | Rep | % of Reg | None | % of Reg | Green | Libt |
| Total Ballots Requested | 2637 | 2.80% | 2065 | 4.62% | 364 | 2.00% | 201 | 1.11% | 1 | 6 |
| All | % of Request | Dem | % of Request | Rep | % of Request | None | % of Request | Green | Libt | |
| Ballots Returned (mail office and satellite) | 2627 | 99.6% | 2056 | 99.6% | 363 | 99.7% | 201 | 100.0% | 1 | 6 |
| All | % of Reg | Dem | % of Reg | Rep | % of Reg | None | % of Reg | Green | Libt | |
| Mail (domestic) | 116 | 0.12% | 82 | 0.18% | 28 | 0.15% | 6 | 0.02% | 0 | 0 |
| Military/Overseas Mail | 16 | 0.0% | 10 | 0.2% | 5 | 0.03% | 0 | 0.00% | 0 | 0 |
| Mail Total | 131 | 0.14% | 92 | 0.20% | 33 | 0.18% | 6 | 0.02% | 0 | 0 |
| All | % of Reg | Dem | % of Reg | Rep | % of Reg | None | % of Reg | Green | Libt | |
| Auditor's Office | 2022 | 2.09% | 1556 | 3.43% | 306 | 1.66% | 153 | 0.48% | 1 | 6 |
| Satellite | 484 | 0.50% | 417 | 0.92% | 25 | 0.14% | 42 | 0.13% | 0 | 0 |
| In-Person Total | 2506 | 2.59% | 1973 | 4.34% | 331 | 1.79% | 195 | 0.61% | 1 | 6 |
| All | % of Request | Dem | % of Request | Rep | % of Request | None | % of Request | Green | Libt | |
| Mailed Ballots Returned | 121 | 92.4% | 83 | 90.2% | 32 | 97.0% | 6 | 100.0% | 0 | 0 |
| Mailed Ballots Not Returned | 10 | 7.6% | 9 | 9.8% | 1 | 3.0% | 0 | 0.0% | 0 | 0 |
| Request by Precinct | All | % of Reg | Dem | % of Reg | Rep | % of Reg | None | % of Reg | Green | Libt |
| Big Grove | 6 | 0.4% | 4 | 0.8% | 2 | 0.4% | 0 | 0.0% | 0 | 0 |
| Cedar | 17 | 4.0% | 12 | 6.5% | 3 | 2.8% | 2 | 1.6% | 0 | 0 |
| Clear Creek-Tiffin | 26 | 1.1% | 17 | 2.0% | 5 | 0.9% | 4 | 0.4% | 0 | 0 |
| Coralville 1 | 28 | 1.4% | 21 | 2.1% | 5 | 2.0% | 2 | 0.3% | 0 | 0 |
| Coralville 2 | 47 | 2.5% | 30 | 3.45 | 11 | 2.4% | 5 | 0.9% | 0 | 1 |
| Coralville 3 | 11 | 0.9% | 10 | 1.9% | 1 | 0.4% | 0 | 0.0% | 0 | 0 |
| Coralville 4 | 24 | 1.5% | 16 | 2.0% | 5 | 2.5% | 3 | 0.6% | 0 | 0 |
| Coralville 5 | 36 | 2.3% | 30 | 3.4% | 4 | 1.9% | 2 | 0.4% | 0 | 0 |
| Coralville 6 | 47 | 2.1% | 34 | 3.5% | 6 | 1.1% | 6 | 0.9% | 0 | 1 |
| Coralville 7 | 43 | 2.3% | 32 | 3.4% | 9 | 2.7% | 2 | 0.3% | 0 | 0 |
| Coralville Total | 236 | 2.0% | 173 | 3.0% | 41 | 1.8% | 20 | 0.5% | 0 | 2 |
| Fremont-Lincoln | 22 | 1.7% | 10 | 2.1% | 9 | 2.8% | 3 | 0.6% | 0 | 0 |
| Graham | 27 | 7.0% | 16 | 8.5% | 8 | 10.7% | 3 | 2.5% | 0 | 0 |
| Hardin | 7 | 1.8% | 3 | 1.8% | 4 | 3.9% | 0 | 0.0% | 0 | 0 |
| Hills | 7 | 1.4% | 2 | 0.9% | 5 | 4.9% | 0 | 0.0% | 0 | 0 |
| Iowa City 01 | 121 | 5.4% | 93 | 7.0% | 22 | 5.4% | 6 | 1.2% | 0 | 0 |
| Iowa City 02 | 198 | 10.4% | 147 | 13.9% | 36 | 10.0% | 14 | 2.9% | 0 | 1 |
| Iowa City 03 | 11 | 0.5% | 8 | 1.0% | 0 | 0.0% | 3 | 0.3% | 0 | 0 |
| Iowa City 04 | 53 | 2.7% | 48 | 4.2% | 4 | 1.4% | 1 | 0.2% | 0 | 0 |
| Iowa City 05 | 13 | 0.5% | 9 | 0.9% | 2 | 0.4% | 2 | 0.2% | 0 | 0 |
| Iowa City 06 | 100 | 4.4% | 83 | 6.4% | 9 | 2.5% | 8 | 1.3% | 0 | 0 |
| Iowa City 07 | 31 | 1.7% | 28 | 3.1% | 2 | 0.6% | 1 | 0.2% | 0 | 0 |
| Iowa City 08 | 66 | 3.1% | 54 | 5.1% | 7 | 1.6% | 5 | 0.9% | 0 | 0 |
| Iowa City 09 | 70 | 3.9% | 60 | 6.2% | 7 | 2.8% | 3 | 0.5% | 0 | 0 |
| Iowa City 10 | 43 | 2.4% | 27 | 3.1% | 10 | 3.7% | 6 | 1.0% | 0 | 0 |
| Iowa City 11 | 23 | 1.1% | 17 | 1.8% | 2 | 0.5% | 4 | 0.5% | 0 | 0 |
| Iowa City 12 | 52 | 2.6% | 42 | 4.0% | 5 | 2.1% | 5 | 0.7% | 0 | 0 |
| Iowa City 13 | 38 | 3.3% | 34 | 5.9% | 2 | 1.3% | 2 | 0.5% | 0 | 0 |
| Iowa City 14 | 85 | 4.8% | 70 | 6.3% | 7 | 4.7% | 8 | 1.6% | 0 | 0 |
| Iowa City 15 | 64 | 4.4% | 49 | 6.7% | 7 | 3.0% | 8 | 1.7% | 0 | 0 |
| Iowa City 16 | 130 | 6.6% | 114 | 9.3% | 11 | 5.2% | 5 | 0.9% | 0 | 0 |
| Iowa City 17 | 151 | 6.8% | 130 | 8.8% | 9 | 4.2% | 11 | 2.2% | 1 | 0 |
| Iowa City 18 | 138 | 7.3% | 131 | 9.8% | 1 | 0.7% | 6 | 1.5% | 0 | 0 |
| Iowa City 19 | 10 | 0.5% | 6 | 0.8% | 2 | 0.6% | 2 | 0.3% | 0 | 0 |
| Iowa City 20 | 26 | 1.3% | 21 | 2.1% | 4 | 1.3% | 1 | 0.1% | 0 | 0 |
| Iowa City 21 | 53 | 2.9% | 46 | 4.1% | 1 | 0.5% | 6 | 1.2% | 0 | 0 |
| Iowa City 22 | 70 | 3.9% | 57 | 6.3% | 3 | 1.0% | 10 | 1.7% | 0 | 0 |
| Iowa City 23 | 139 | 5.9% | 115 | 8.0% | 14 | 3.7% | 10 | 1.9% | 0 | 0 |
| Iowa City 24 | 96 | 3.6% | 81 | 6.1% | 12 | 2.3% | 3 | 0.4% | 0 | 0 |
| Total for Iowa City Precincts | 1781 | 3.8% | 1470 | 6.0% | 179 | 2.4% | 130 | 0.9% | 1 | 1 |
| Jefferson East | 12 | 0.7% | 7 | 1.3% | 5 | 0.8% | 0 | 0.0% | 0 | 0 |
| Jefferson West-Monroe | 4 | 0.2% | 2 | 0.3% | 2 | 0.4% | 0 | 0.0% | 0 | 0 |
| Liberty-Pleasant Valley | 14 | 2.9% | 13 | 5.9% | 1 | 0.9% | 0 | 0.0% | 0 | 0 |
| Newport | 81 | 4.5% | 63 | 7.7% | 14 | 2.9% | 4 | 0.8% | 0 | 0 |
| North Liberty 01 | 11 | 0.6% | 10 | 1.4% | 1 | 0.3% | 0 | 0.0% | 0 | 0 |
| North Liberty 02 | 14 | 0.8% | 9 | 1.3% | 3 | 0.8% | 1 | 0.2% | 0 | 1 |
| North Liberty 03 | 23 | 1.0% | 16 | 1.9% | 4 | 0.7% | 3 | 0.3% | 0 | 0 |
| North Liberty 04 | 16 | 1.0% | 11 | 1.6% | 2 | 0.8% | 3 | 0.5% | 0 | 0 |
| North Liberty 05 | 9 | 0.6% | 8 | 1.3% | 1 | 0.3% | 0 | 0.0% | 0 | 0 |
| North Liberty 06 | 39 | 1.3% | 21 | 2.0% | 15 | 2.1% | 2 | 0.2% | 0 | 1 |
| Total for North Liberty Precincts | 112 | 1.0% | 75 | 1.7% | 26 | 1.1% | 9 | 0.2% | 0 | 2 |
| Oxford | 5 | 0.5% | 2 | 0.5% | 3 | 1.1% | 0 | 0.0% | 0 | 0 |
| Penn-East Lucas N | 110 | 5.1% | 85 | 7.8% | 19 | 3.5% | 6 | 1.1% | 0 | 0 |
| Scott | 44 | 3.5% | 26 | 4.6% | 8 | 3.0% | 9 | 2.3% | 0 | 1 |
| Sharon | 10 | 2.3% | 4 | 3.1% | 6 | 3.1% | 0 | 0.0% | 0 | 0 |
| Solon | 18 | 1.0% | 10 | 1.6% | 5 | 1.1% | 3 | 0.4% | 0 | 0 |
| Union | 35 | 6.7% | 25 | 9.8% | 7 | 5.6% | 3 | 2.2% | 0 | 0 |
| University Heights | 39 | 4.8% | 31 | 6.7% | 4 | 3.0% | 4 | 1.8% | 0 | 0 |
| Washington | 10 | 1.6% | 5 | 3.6% | 5 | 2.0% | 0 | 0.0% | 0 | 0 |
| West Lucas | 14 | 1.7% | 10 | 2.7% | 3 | 2.0% | 1 | 0.3% | 0 | 0 |
| Total Request | All | % of Reg | Dem | % of Reg | Rep | % of Reg | None | % of Reg | Green | Libt |
| 2,637 | 2.8% | 2,065 | 4.6% | 364 | 2.0% | 201 | 1.1% | 1 | 6 | |
| Returned by Precinct | All | % of Reg | Dem | % of Reg | Rep | % of Reg | None | % of Reg | Green | Libt |
| Big Grove | 6 | 0.4% | 4 | 0.8% | 2 | 0.4% | 0 | 0.0% | 0 | 0 |
| Cedar | 17 | 4.0% | 12 | 6.5% | 3 | 2.8% | 2 | 1.6% | 0 | 0 |
| Clear Creek-Tiffin | 26 | 1.1% | 17 | 2.0% | 5 | 0.9% | 4 | 0.4% | 0 | 0 |
| Coralville 1 | 27 | 1.3% | 20 | 2.0% | 5 | 2.0% | 2 | 0.3% | 0 | 0 |
| Coralville 2 | 47 | 2.5% | 30 | 3.4% | 11 | 2.4% | 5 | 0.9% | 0 | 1 |
| Coralville 3 | 11 | 0.9% | 10 | 1.9% | 1 | 0.4% | 0 | 0.0% | 0 | 0 |
| Coralville 4 | 24 | 1.5% | 16 | 2.0% | 5 | 2.5% | 3 | 0.6% | 0 | 0 |
| Coralville 5 | 36 | 2.3% | 30 | 3.4% | 4 | 1.9% | 2 | 0.4% | 0 | 0 |
| Coralville 6 | 47 | 2.1% | 34 | 3.5% | 6 | 1.1% | 6 | 0.9% | 0 | 1 |
| Coralville 7 | 43 | 2.3% | 32 | 3.4% | 9 | 2.7% | 2 | 0.3% | 0 | 0 |
| Coralville Total | 235 | 2.0% | 172 | 3.0% | 41 | 1.8% | 20 | 0.5% | 0 | 2 |
| Fremont-Lincoln | 22 | 1.7% | 10 | 2.1% | 9 | 2.8% | 3 | 0.6% | 0 | 0 |
| Graham | 27 | 7.0% | 16 | 8.5% | 8 | 10.7% | 3 | 2.5% | 0 | 0 |
| Hardin | 7 | 1.8% | 3 | 1.8% | 4 | 3.9% | 0 | 0.0% | 0 | 0 |
| Hills | 7 | 1.4% | 2 | 0.9% | 5 | 4.9% | 0 | 0.0% | 0 | 0 |
| Iowa City 01 | 121 | 5.4% | 93 | 7.0% | 22 | 5.4% | 6 | 1.2% | 0 | 0 |
| Iowa City 02 | 194 | 10.2% | 144 | 13.6% | 35 | 9.9% | 14 | 2.9% | 0 | 1 |
| Iowa City 03 | 11 | 0.5% | 8 | 1.0% | 0 | 0.0% | 3 | 0.3% | 0 | 0 |
| Iowa City 04 | 53 | 2.7% | 48 | 4.2% | 4 | 1.4% | 1 | 0.2% | 0 | 0 |
| Iowa City 05 | 13 | 0.5% | 9 | 0.9% | 2 | 0.4% | 2 | 0.2% | 0 | 0 |
| Iowa City 06 | 100 | 4.4% | 83 | 6.4% | 9 | 2.5% | 8 | 1.3% | 0 | 0 |
| Iowa City 07 | 30 | 1.6% | 27 | 3.0% | 2 | 0.6% | 1 | 0.2% | 0 | 0 |
| Iowa City 08 | 66 | 3.1% | 54 | 5.1% | 7 | 1.6% | 5 | 0.9% | 0 | 0 |
| Iowa City 09 | 70 | 3.9% | 60 | 6.2% | 7 | 2.8% | 3 | 0.5% | 0 | 0 |
| Iowa City 10 | 43 | 2.4% | 27 | 3.1% | 10 | 3.7% | 6 | 1.0% | 0 | 0 |
| Iowa City 11 | 23 | 1.1% | 17 | 1.8% | 2 | 0.5% | 4 | 0.5% | 0 | 0 |
| Iowa City 12 | 52 | 2.6% | 42 | 4.0% | 5 | 2.1% | 5 | 0.7% | 0 | 0 |
| Iowa City 13 | 38 | 3.3% | 34 | 5.9% | 2 | 1.3% | 2 | 0.5% | 0 | 0 |
| Iowa City 14 | 85 | 4.8% | 70 | 6.3% | 7 | 4.7% | 8 | 1.6% | 0 | 0 |
| Iowa City 15 | 64 | 4.4% | 49 | 6.7% | 7 | 3.0% | 8 | 1.7% | 0 | 0 |
| Iowa City 16 | 130 | 6.6% | 114 | 9.3% | 11 | 5.2% | 5 | 0.9% | 0 | 0 |
| Iowa City 17 | 151 | 6.8% | 130 | 8.8% | 9 | 4.2% | 11 | 2.2% | 1 | 0 |
| Iowa City 18 | 138 | 7.3% | 131 | 9.8% | 1 | 0.7% | 6 | 1.5% | 0 | 0 |
| Iowa City 19 | 10 | 0.5% | 6 | 0.8% | 2 | 0.6% | 2 | 0.3% | 0 | 0 |
| Iowa City 20 | 26 | 1.3% | 21 | 2.1% | 4 | 1.3% | 1 | 0.1% | 0 | 0 |
| Iowa City 21 | 53 | 2.9% | 46 | 4.1% | 1 | 0.5% | 6 | 1.2% | 0 | 0 |
| Iowa City 22 | 70 | 3.9% | 57 | 6.3% | 3 | 1.0% | 10 | 1.7% | 0 | 0 |
| Iowa City 23 | 137 | 5.8% | 113 | 7.8% | 14 | 3.7% | 10 | 1.9% | 0 | 0 |
| Iowa City 24 | 96 | 3.6% | 81 | 6.1% | 12 | 2.3% | 3 | 0.4% | 0 | 0 |
| Total for Iowa City Precincts | 1774 | 3.8% | 1464 | 6.0% | 178 | 2.4% | 130 | 0.9% | 1 | 1 |
| Jefferson East | 12 | 0.7% | 7 | 1.3% | 5 | 0.8 | 0 | 0.0% | 0 | 0 |
| Jefferson West-Monroe | 4 | 0.2% | 2 | 0.3% | 2 | 0.4 | 0 | 0.0% | 0 | 0 |
| Liberty-Plesant Valey | 14 | 2.9% | 13 | 5.9% | 1 | 0.9 | 0 | 0.0% | 0 | 0 |
| Newport | 81 | 4.5% | 63 | 7.7% | 14 | 2.9 | 4 | 0.8% | 0 | 0 |
| North Liberty 01 | 11 | 0.6% | 10 | 1.4% | 1 | 0.3 | 0 | 0.0% | 0 | 0 |
| North Liberty 02 | 14 | 0.8% | 9 | 1.3% | 3 | 0.8 | 1 | 0.2% | 0 | 1 |
| North Liberty 03 | 21 | 0.9% | 14 | 1.7% | 4 | 0.7 | 3 | 0.3% | 0 | 0 |
| North Liberty 04 | 16 | 1.0% | 11 | 1.6% | 2 | 0.8 | 3 | 0.5% | 0 | 0 |
| North Liberty 05 | 9 | 0.6% | 8 | 1.3% | 1 | 0.3 | 0 | 0.0% | 0 | 0 |
| North Liberty 06 | 39 | 1.3% | 21 | 2.0% | 15 | 2.1 | 2 | 0.2% | 0 | 1 |
| Total for North Liberty Precincts | 110 | 1.0% | 73 | 1.7% | 26 | 1.1% | 9 | 0.2% | 0 | 2 |
| Oxford | 5 | 0.5% | 2 | 0.5% | 3 | 1.1% | 0 | 0.0% | 0 | 0 |
| Penn-East Lucas N | 110 | 5.1% | 85 | 7.8% | 19 | 3.5% | 6 | 1.1% | 0 | 0 |
| Scott | 44 | 3.5% | 26 | 4.6% | 8 | 3.0% | 9 | 2.3% | 0 | 1 |
| Sharon | 10 | 2.3% | 4 | 3.1% | 6 | 3.1% | 0 | 0.0% | 0 | 0 |
| Solon | 18 | 1.0% | 10 | 1.6% | 5 | 1.1% | 3 | 0.4% | 0 | 0 |
| Union | 35 | 6.7% | 25 | 9.8% | 7 | 5.6% | 3 | 2.2% | 0 | 0 |
| University Heights | 39 | 4.8% | 31 | 6.8% | 4 | 3.0% | 4 | 1.8% | 0 | 0 |
| Washington | 10 | 1.6% | 5 | 3.6% | 5 | 2.0% | 0 | 0.0% | 0 | 0 |
| West Lucas | 14 | 1.7% | 10 | 2.7% | 3 | 2.0% | 1 | 0.3% | 0 | 0 |
| Total Returned | All | % of Reg | Dem | % of Reg | Rep | % of Reg | None | % of Reg | Green | Libt |
| Individual Satellite Sites | All | Dem | Rep | None | Green | Libt | ||||
| 12/14 UIHC | 134 | 119 | 6 | 9 | 0 | 0 | ||||
| 12/15 ICPL | 350 | 298 | 19 | 33 | 0 | 0 |