Depending on where they live, Montanans vote in two ways: by paper ballot or optical-scan ballot.
Following are the specific voting technologies that are being used in Montana elections:
| Big Horn |
ES&S Model 150 |
| Beaverhead |
ES&S Model 100 Precinct Counter |
| Blaine |
ES&S Model 100 Precinct Counter |
| Broadwater |
ES&S Model 100 Precinct Counter |
| Carbon |
ES&S Model 150, Model 100 Precinct Counter |
| Cascade |
ES&S Model 650 |
| Chouteau |
ES&S Model 100 Precinct Counter |
| Custer |
ES&S Model 100 Precinct Counter |
| Dawson |
ES&S Model 100 Precinct Counter |
| Deer Lodge |
ES&S Model 650 |
| Fallon |
ES&S Model 100 Precinct Counter |
| Fergus |
ES&S Model 650 |
| Flathead |
ES&S Model 650, Model 100 Precinct Counter |
| Gallatin |
ES&S Model 650 |
| Glacier |
ES&S Model 150 |
| Granite |
ES&S Model 100 Precinct Counter |
| Hill |
ES&S Eagle OpTech Model 200 |
| Jefferson |
ES&S Model 650 |
| Lake |
ES&S Model 650, Model 100 Precinct Counter |
| Lewis & Clark |
ES&S Model 650 |
| Liberty |
ES&S Eagle OpTech |
| Lincoln |
ES&S Model 150 |
| Madison |
ES&S Model 150 |
| McCone |
ES&S Model 100 Precinct Counter |
| Mineral |
ES&S Model 100 Precinct Counter |
| Missoula |
ES&S Model 650, Model 100 Precinct Counter |
| Musselshell |
ES&S OpTech Eagle III-P, ES&S Model 100 |
| Park |
ES&S Model 100 Precinct Counter |
| Phillips |
ES&S Model 100 Precinct Counter |
| Pondera |
ES&S Model 150 |
| Powell |
ES&S Model 650 |
| Ravalli |
ES&S Model 315 |
| Richland |
ES&S Model 100 Precinct Counter |
| Roosevelt |
ES&S Model 150, Model 100 Precinct Counter |
| Rosebud |
ES&S Model 100 Precinct Counter |
| Sanders |
ES&S Model 650 |
| Sheridan |
ES&S Model 100 Precinct Counter |
| Silver Bow |
ES&S Model 150 |
| Stillwater |
ES&S Model 100 Precinct Counter |
| Teton |
ES&S Model 100 Precinct Counter |
| Toole |
ES&S Model 150 |
| Valley |
ES&S Model 100 Precinct Counter |
| Wibaux |
ES&S Model 100 Precinct Counter |
| Yellowstone |
ES&S Model 650 |
