Montana State Legislature
Legislative Redistricting Plan (adopted 2/12/13)
The final legislative redistricting plan, including 100 House districts and 50 Senate districts, was adopted on February 12, 2013.
The official plan is the block equivalency file that lists each U.S. Census Block and the district to which it is assigned. Because those files are lengthy text files that are rendered meaningful only with with GIS software, additional materials -- including district maps and reports -- will be produced to help illustrate the new districts. These additional files, reports, and maps will be posted as they become available.
Statewide View and GIS Files
- Final Report - October 2013
- Interactive Legislative Districts with Census data - produced by the Census and Economic Information Center of the Montana Department of Commerce
- Senate Districts (Google Earth) - requires download of Google Earth and file
- House Districts (Google Earth) - requires download of Google Earth and file
- House District Block Equivalency Files (zipped folder)
- House District Shape Files (zipped folder)
- House District Block-to-District Text Files (zipped folder)
- Senate District Block Equivalency Files (zipped folder)
- Senate District Shape Files (zipped folder)
- Senate District Block-to-District Text Files (zipped folder)
- Poster-sized Map (pdf) -- large file
Senate Districts
- List of Senate District pairings and holdover senator assignments
House and Senate District Maps
Maps of House and Senate Districts
These maps reflect the 100 House Districts and 50 Senate Districts adopted by the commission on 2/12/13. The maps show Senate Districts, which are composed of two nested House Districts. The House District numbers appear in parantheses after each Senate District along with a list of counties in that Senate District.
In the maps themselves, Senate District labels show which holdover Senator is assigned to the district, if any. To see a full list of which House Districts make up each Senate District, the counties in the Senate District and the holdover senator assignments, please refer to the list in the Senate Districts section above.
For a more detailed view of the districts, including a street-level view, please use the Google Earth or Google Maps features available in the Statewide View section.
Note: these maps are not the official boundary designations for House or Senate districts. Official descriptions of House districts are created by the counties not the Legislative Services Division. These maps are meant to be used for general reference only.
North Western Region
- SD 1 (HD 1 & HD 2) - Lincoln
- SD 2 (HD 3 & HD 4) - Flathead
- SD 3 (HD 5 & HD 6) - Flathead
- SD 4 (HD 7 & HD 8) - Flathead
- SD 5 (HD 9 & HD 10) - Flathead, Lake
- SD 6 (HD 11 & HD 12) - Flathead, Lake
- SD 7 (HD 13 & HD 14) - Flathead, Sanders, Mineral, Missoula
North Central Region
- SD 8 (HD 15 & HD 16) - Flathead, Lake, Glacier, Pondera
- SD 9 (HD 17 & HD 18) - Glacier, Lewis & Clark, Teton, Pondera, Toole
- SD 10 (HD 19 & HD 20) - Cascade
- SD 11 (HD 21 & HD 22) - Cascade
- SD 12 (HD 23 & HD 24)- Cascade
- SD 13 (HD 25 & HD 26) - Cascade
- SD 14 (HD 27 & HD 28) - Cascade, Chouteau, Liberty, Hill
- SD 15 (HD 29 & HD 30) - Petroleum, Fergus, Golden Valley, Wheatland, Meagher, Judith Basin, Cascade
North Eastern Region
- SD 16 (HD 31 & HD 32) - Roosevelt, Valley, Phillips, Blaine, Hill, Chouteau
- SD 17 (HD 33 & HD 34) - Hill, Blaine, Phillips, Valley, Roosevelt, Daniels, Sheridan
South Eastern Region
- SD 18 (HD 35 & HD 36) - Richland, Dawson, Wibaux
- SD 19 (HD 37 & HD 38) - McCone, Garfield, Prairie, Custer, Fallon, Carter, Powder River
- SD 20 (HD 39 & SD 40) - Custer, Rosebud, Big Horn, Yellowstone, Musselshell
- SD 21 (HD 41 & HD 42) - Powder River, Rosebud, Big Horn, Yellowstone
- SD 22 (HD 43 & HD 44) - Yellowstone
- SD 23 (HD 45 & HD 46) - Yellowstone
- SD 24 (HD 47 & HD 48) - Yellowstone
- SD 25 (HD 49 & HD 50) - Yellowstone
- SD 26 (HD 51 & HD 52) - Yellowstone
- SD 27 (HD 53 & HD 54) - Yellowstone
- SD 28 (HD 55 & HD 56) - Yellowstone
Central Region
- SD 15 (HD 29 & HD 30) - Petroleum, Fergus, Golden Valley, Wheatland, Meagher, Judith Basin, Cascade
- SD 20 (HD 39 & HD 40) - Custer, Rosebud, Big Horn, Yellowstone
- SD 29 (HD 57 & HD 58) - Carbon, Stillwater, Sweet Grass
- SD 30 (HD 59 & HD 60) - Sweet Grass, Park, Gallatin
- SD 31 (HD 61 & HD 62) - Gallatin
- SD 32 (HD 63 & HD 64) - Gallatin
- SD 33 (HD 65 & HD 66) - Gallatin
- SD 34 (HD 67 & HD 68) - Gallatin
- SD 35 (HD 69 & HD 70) - Gallatin, Broadwater, Lewis & Clark
South Western Region
- SD 36 (HD 71 & HD 72) - Madison, Beaverhead, Silver Bow, Jefferson
- SD 37 (HD 73 & HD 74) - Silver Bow
- SD 38 (HD 75 & HD 76) - Silver Bow, Jefferson
- SD 39 (HD 77 & HD 78) - Granite, Deer Lodge, Silver Bow, Powell
- SD 40 (HD 79 & HD 80) - Powell, Lewis & Clark
- SD 41 (HD 81 & HD 82) - Lewis & Clark
- SD 42 (HD 83 & HD 84) - Lewis & Clark
- SD 43 (HD 85 & HD 86) - Ravalli
- SD 44 (HD 87 & HD 88) - Ravalli
- SD 45 (HD 89 & HD 90) - Missoula
- SD 46 (HD 91 & HD 92) - Missoula
- SD 47 (HD 93 & HD 94) - Missoula, Lake
- SD 48 (HD 95 & HD 96) - Missoula
- SD 49 (HD 97 & HD 98) - Missoula
- SD 50 (HD 99 & HD 100) - Missoula
House District Maps
County and Town Maps
Reports
House Districts
- Population summary
- District statistic reports
- County splits
- Census Places by district
- Voting Rights Act district statistics
- Cores of previous districts
- Commissioners' justifications for district deviations
- Computer-generated metes/bounds (NOT A LEGAL DESCRIPTION)
Senate Districts
- Population summary
- County splits
- Census Places by district
- Cores of previous districts report