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Montana counties

Quick answer

Montana has 56 counties and county equivalents holding 1,105,072 residents. The statewide sales tax base rate is 0%, before county and city add-ons.

All 56 counties

Ranked by population, Census 2019-2023 ACS 5-year estimates.

CountyPopulationMedian incomeMedian home valueMedian rent
Yellowstone County167,340$74,400$317,600$1,084
Gallatin County122,194$87,454$604,900$1,574
Missoula County119,639$71,246$423,100$1,125
Flathead County108,445$71,327$467,700$1,094
Cascade County84,601$66,203$243,300$902
Lewis and Clark County72,580$74,543$358,200$1,062
Ravalli County45,807$71,323$435,000$1,054
Silver Bow County35,589$57,504$223,500$810
Lake County32,073$61,965$369,200$884
Lincoln County20,656$47,018$258,700$810
Park County17,484$66,607$429,700$927
Hill County16,260$55,313$187,600$752
Glacier County13,713$45,129$153,400$553
Big Horn County12,963$56,680$148,200$686
Sanders County12,936$54,035$323,800$774
Jefferson County12,501$76,576$408,000$886
Custer County11,938$63,585$204,200$918
Fergus County11,581$59,731$202,700$868
Richland County11,329$69,578$259,000$866
Carbon County10,877$71,017$379,300$882
Roosevelt County10,665$53,125$119,400$707
Beaverhead County9,590$58,072$282,000$800
Deer Lodge County9,512$49,533$209,700$661
Stillwater County9,052$81,503$355,600$968
Madison County8,975$67,420$440,500$1,159
Dawson County8,874$70,953$187,400$823
Rosebud County8,236$56,430$188,900$644
Valley County7,540$64,515$198,600$769
Broadwater County7,310$63,636$364,800$978
Powell County7,029$63,432$255,700$770
Blaine County6,997$65,050$124,900$689
Teton County6,291$67,766$235,500$750
Pondera County6,012$53,500$179,200$806
Chouteau County5,888$56,927$185,100$485
Musselshell County5,068$59,010$221,200$865
Toole County5,028$53,693$187,400$753
Mineral County4,796$61,117$313,600$746
Phillips County4,224$58,156$175,000$623
Sweet Grass County3,713$69,426$295,500$1,073
Sheridan County3,677$63,654$111,600$749
Granite County3,419$54,646$339,500$734
Fallon County2,817$72,284$237,000$772
Judith Basin County2,053$55,417$214,200$502
Wheatland County2,049$47,054$172,700$741
Meagher County1,979$56,215$244,400$871
Liberty County1,968$53,264$116,800$668
McCone County1,818$71,842$197,400$543
Powder River County1,762$68,009$149,400$609
Daniels County1,524$58,000$177,800$588
Carter County1,361$52,171$176,600$731
Prairie County1,251$45,192$167,100$827
Wibaux County1,148$64,792$92,300$964
Garfield County938$61,750$178,300$802
Golden Valley County840$57,353$203,900$769
Treasure County761$73,036$215,300$992
Petroleum County401$59,318$173,700$769

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

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