Montana House of Representatives seat · lines in effect since 2024

Montana House District 21

A district of about 4,000 people, 18% of adults with a bachelor's degree. It votes R+19.8 relative to the nation for president.

Ed Buttrey (R) · since Nov 6, 2018Next election Nov 7, 2028The 2026 race →

Where it sits among all 100 seats

Every Montana House of Representatives seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

R+19.852nd most
Democratic

Most DemocraticMost Republican51st seat · the majority lineDistrict 21

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Every race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

	2016	2018	2020	2024	2026
U.S. Senate	No race	D+13.0	R+4.0	R+4.5	No race
Governor	D+17.2	No race	No race	R+26.9	No race
Montana House of Representatives	No race	No race	No race	R+35.3	R+16.5

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: Montana Secretary of StateUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 100 seats. Small marks are other seats in Montana. The black marker is District 21.

Adults with a bachelor's degree18% 6th pct · 91st of 97 in MT

15%81%

Lower than 94% of seats.

White adults without a degree71% 93rd pct · 8th of 97 in MT

7%75%

Higher than 93% of seats.

Hispanic residents2% 7th pct · 90th of 97 in MT

1%13%

Lower than 93% of seats.

Black residents0% 0th pct · 83rd of 97 in MT

0%5%

Lower than 100% of seats.

Asian residents3% 94th pct · 7th of 97 in MT

0%5%

Higher than 94% of seats.

People per square mile662 73rd pct · 27th of 97 in MT

110K

Denser than 73% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET

Seats most like this one

Nearest seats on demographics, density and lean.

District 7
35% college gradsR+17.5Held R District 51
43% college gradsR+15.8Held R District 10
29% college gradsR+47.5Held R District 5
33% college gradsR+47.2Held R

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Who has held it

These lines took effect in 2024.

Trevor P. Funseth (R)
2027– · Won 2026 by 16.5
Ed Buttrey (R)
2025–2027 · Won 2024 by 35.3

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)