Montana / MT-01
Montana District 1
Score
Irregularity score 48 Middle of the packLess compact than 50% of other congressional districts.
213th least compact of 429 nationally, 1st of 2 in Montana.
A score describes shape, not intent. Coastlines, rivers and the Voting Rights Act can all make a district irregular. How scores work
The three measures
- Polsby-Popper
- 0.21at least as compact as 36% of districts on this measure
Area compared with perimeter. Low for jagged or snaking edges.
- Reock
- 0.56at least as compact as 70% of districts on this measure
Area compared with the smallest circle around the district, counting only land. Low for stretched shapes.
- Convex hull
- 0.77at least as compact as 49% of districts on this measure
Area compared with a rubber band stretched around the district, counting only land. Low for bites and tentacles.
Each measure runs from 0 to 1, where 1 is a perfect circle or a shape with no dents.
The state's edge
60% of this district's border is the state's edge: a coastline, a national border or a state line. Mapmakers don't choose those lines. A ragged one, like a coastline or a river, lowers Polsby-Popper. Reock and convex hull count only the state's own land, so water and neighboring states don't count against them. More on the state's edge
Cities and towns
The largest places with people in this district, from the 2020 Census. A place split between districts shows how many of its residents live in this one.
- Missoula cityall 73,489 residents
- Bozeman cityall 53,293 residents
- Butte-Silver Bow all 34,494 residents
- Kalispell cityall 24,558 residents
- Belgrade cityall 10,460 residents
- Anaconda-Deer Lodge County all 9,421 residents
- Evergreen communityall 8,149 residents
- Whitefish cityall 7,751 residents
- Four Corners communityall 5,901 residents
- Orchard Homes communityall 5,377 residents
And 181 smaller places. 35% of this district's people live outside any city, town or named community. How places are counted
ZIP codes
128 ZIP codes have residents in this district. 11 of them are split with other districts. A percentage is the share of that ZIP code's 2020 residents who live here.
Show all 128 ZIP codes
- 59086 (15%)
- 59411
- 59417
- 59425 (9%)
- 59427 (99%)
- 59432 (95%)
- 59434
- 59448
- 59486 (92%)
- 59701 (99%)
- 59710
- 59711
- 59713
- 59714
- 59715 (99%)
- 59716
- 59718
- 59720
- 59721 (46%)
- 59722
- 59724
- 59725
- 59727
- 59728
- 59729
- 59730
- 59731
- 59732
- 59733
- 59735
- 59736
- 59739
- 59740
- 59741
- 59743
- 59745
- 59746
- 59747
- 59748
- 59749
- 59750
- 59751
- 59752 (74%)
- 59754
- 59755
- 59756
- 59758
- 59759 (11%)
- 59760
- 59761
- 59762
- 59801
- 59802
- 59803
- 59804
- 59808
- 59812
- 59820
- 59821
- 59823
- 59824
- 59825
- 59826
- 59827
- 59828
- 59829
- 59830
- 59831
- 59832
- 59833
- 59834
- 59837
- 59840
- 59841
- 59842
- 59843
- 59844
- 59845
- 59846
- 59847 (99%)
- 59848
- 59851
- 59853
- 59854
- 59855
- 59856
- 59858
- 59859
- 59860
- 59863
- 59864
- 59865
- 59866
- 59867
- 59868
- 59870
- 59871
- 59872
- 59873
- 59874
- 59875
- 59901
- 59910
- 59911
- 59912
- 59913
- 59914
- 59915
- 59916
- 59917
- 59918
- 59919
- 59920
- 59922
- 59923
- 59925
- 59926
- 59927
- 59928
- 59929
- 59930
- 59931
- 59932
- 59933
- 59934
- 59935
- 59936
- 59937
These are the Census Bureau's ZIP code areas, which match residential ZIP codes closely. ZIP codes used only for PO boxes or a single organization aren't included. How ZIP codes are matched
2024 presidential vote
Shares of the votes for the two of them; other candidates are left out. Montana used the same lines in 2024, so this is added up from precinct results. A precinct split between districts is divided by its House votes, so the figures are close estimates. Where the votes come from
U.S. House
Sam Forstag, Democrat
Elected November 3, 2026, takes office January 3, 2027.
Unofficial results from the Montana Secretary of State, checked November 6, 2026. A race shows a winner once news decision desks have called it. Results become official when the state certifies them. Where this comes from
Montana's senators
- Steve Daines, RepublicanSeat on the November 3, 2026 ballot: Kurt Alme, Republican, won and takes office January 3, 2027.
- Tim Sheehy, Republican
Senators are elected by the whole state, so district lines don't change who they are. Senators serving as of November 6, 2026. Senators elected in November 2026 take office January 3, 2027. Where this comes from
Where it sits in Montana
- Very compact (0 to 19)
- Compact (20 to 39)
- Middle (40 to 59)
- Irregular (60 to 79)
- Very irregular (80 to 100)
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