• county
  • FIPS 30001
  • Largest town: Dillon

Beaverhead County, Montana

Beaverhead County had 10,006 residents in the Census Vintage 2024 estimate, on 5,542.7 square miles of land. It is the largest by land of Montana's 56 county-equivalents.

Population
10,006
#22 of 56 in Montana · #2,407 in US
Area
5,542.7 sq mi
#1 of 56 in Montana · #65 in US
Density
1.8 / sq mi
#37 of 56 in Montana · #3,006 in US
Median household income
$63,084
#21 of 56 in Montana · #1,554 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Beaverhead County within Montana. Pin: Helena.

Measure from here

Tools and pages that start from Beaverhead County

Beaverhead County population, land area and income

Beaverhead County had 10,006 residents in the Census Vintage 2024 estimate, on 5,542.7 square miles of land. It is the largest by land of Montana's 56 county-equivalents. That works out to 1.8 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in Montana has 7,814 residents; Beaverhead County is somewhat larger.

Its SAIPE 2023 median household income of $63,084 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

10,006

3144th1st

2407th of 3,144 (US)

Land area

5,543 sq mi

3144th1st

65th of 3,144 (US)

Density

1.8 / sq mi

3144th1st

3006th of 3,144 (US)

Median household income

$63,084

3143rd1st

1554th of 3,143 (US)

Rank within Montana (56)

Population

10,006

56th1st

22nd of 56 (MT)

Land area

5,543 sq mi

56th1st

1st of 56 (MT)

Density

1.8 / sq mi

56th1st

37th of 56 (MT)

Median household income

$63,084

56th1st

21st of 56 (MT)

How Beaverhead County's population changed since 2020

Beaverhead County gained 629 residents between the July 2020 and July 2024 estimates, a rise of 6.7%. That ranks 14th of 56 in Montana for growth. The median Montana county changed by +2.8%, and the state as a whole by +4.6%.

Since the April 2020 estimates base, Beaverhead County recorded 367 births and 503 deaths, a natural change of -136. Net international migration added +28 and net domestic migration, people moving to or from other US counties, came to +735. The largest single component was domestic migration, which added 735 people.

9,37720209,55120219,74220229,889202310.0k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
367
Deaths
503
Net international migration
+28
Net domestic migration
+735
Change, July 2023 to July 2024
+117

Where Beaverhead County is

The Census internal point of Beaverhead County is at 45.133900, -112.892900. It sits in UTM zone 12N. The map shades Montana's 56 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Beaverhead County outlined. Dots are towns of 1,000+ people with residents in it.

Liberty County: -1.2%Golden Valley County: +5.1%Dawson County: -2.1%Flathead County: +9.2%Beaverhead County: +6.7%Prairie County: +2.0%Garfield County: +0.9%Lewis and Clark County: +5.5%Sweet Grass County: +2.4%Wheatland County: -0.7%Ravalli County: +8.5%Jefferson County: +9.6%Carter County: -0.6%Chouteau County: -0.6%Custer County: +0.9%Teton County: +3.1%Granite County: +9.0%Deer Lodge County: +4.1%Cascade County: +0.1%Powder River County: +2.4%Meagher County: +7.3%Daniels County: -1.7%Glacier County: -1.8%Wibaux County: -2.7%Fallon County: -2.7%McCone County: -0.7%Sheridan County: -2.5%Missoula County: +3.5%Toole County: +3.7%Sanders County: +11.5%Roosevelt County: -5.6%Rosebud County: -1.3%Treasure County: -2.5%Yellowstone County: +3.9%Blaine County: -1.4%Musselshell County: +14.8%Broadwater County: +21.0%Powell County: +2.6%Fergus County: +3.4%Phillips County: +0.1%Gallatin County: +6.2%Silver Bow County: +2.6%Madison County: +12.6%Richland County: -4.4%Lake County: +6.9%Valley County: -1.7%Judith Basin County: +4.3%Hill County: -1.2%Big Horn County: -2.2%Stillwater County: +5.0%Carbon County: +9.4%Mineral County: +13.7%Petroleum County: +4.6%Pondera County: +3.4%Park County: +4.9%Lincoln County: +12.4%
Change 2020 to 2024
  1. < -1.4%
  2. < +0.9%
  3. < +3.9%
  4. < +7.3%
  5. ≥ +7.3%
no data

Orange pin: Beaverhead County internal point. Dark pin: Helena.

Internal point

Decimal
45.133900, -112.892900
DMS
45°08'2.04"N 112°53'34.44"W
UTM
12N 351158.5E 4999568.1N
Geohash
c2p8z03uh
Plus code
85Q944M4+HR

Towns in Beaverhead County

One incorporated place of 1,000+ people has residents in Beaverhead County, 4,242 people together, or 42% of the county. Each figure counts only the part of the town inside Beaverhead County; towns marked "part" extend into another county. The largest is Dillon with 4,242.

  1. 01Dillon4,242
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Beaverhead County

The Census 2024 county adjacency file lists 7 neighbors for Beaverhead County, including 3 across a state line. The most populous is Ravalli County, MT, with 48,187 residents. Distances run between Census internal points in a straight line.

Distance to Helena and the nearest big city

Helena is 108.8 miles NNE of Beaverhead County's internal point in a straight line. The nearest place of 100,000 or more is Boise City, ID (population 237,963), 196.0 miles away. The nearest place of 10,000 or more is Butte-Silver Bow, MT (population 35,480), 53.9 miles away.

Beaverhead County FIPS code

The FIPS code of Beaverhead County is 30001: state code 30 for Montana plus county code 001. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $63,084.

Questions people ask

What is the population of Beaverhead County, Montana?

The Census Vintage 2024 estimate for July 1, 2024 is 10,006. That is up 629 people (6.7%) from the July 2020 estimate of 9,377.

What is the FIPS code of Beaverhead County?

30001. The first two digits (30) are Montana; the last three (001) identify the county.

What is the largest town in Beaverhead County?

Dillon, with 4,242 residents inside Beaverhead County in 2024.

Which counties border Beaverhead County?

7 county-equivalents border it in the Census 2024 adjacency file: Ravalli County, MT; Silver Bow County, MT; Fremont County, ID; Deer Lodge County, MT; Madison County, MT; Lemhi County, ID; Clark County, ID.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.