Counties in Montana by median age

Name: Counties in Montana by median age, 2022
Creator: U.S. Census Bureau
License: Public domain (US federal government work, citation requested)

Meagher County had the highest median age of 56 counties in 2022, at 57.6 years. Roosevelt County had the lowest, at 30.4 years. The median was 44.7 years and the figure for Montana was 40.1 years. Source: the U.S. Census Bureau.

Highest57.6Meagher County

Lowest30.4Roosevelt County

Median44.756 counties

Montana40.1History

All counties, 2022

CSV Chart (SVG)

years. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

Rank	Counties	2022 years	Change on 2021
1	Meagher County	57.6	+1.3
2	Carter County	56.8	+0.6
3	Golden Valley County	54.9	+0.4
4	Granite County	54.7	+0.1
4	Sanders County	54.7	+0.3
6	Madison County	54.3	+0.3
6	Treasure County	54.3	-1.2
8	McCone County	54	+1.5
9	Lincoln County	52.5	-0.4
10	Daniels County	52.4	+3.8
11	Musselshell County	52	-0.1
12	Carbon County	50.7	0
13	Mineral County	50.3	-0.7
14	Judith Basin County	50.2	-2.1
15	Powder River County	49.9	+1.4
16	Deer Lodge County	49.6	+1.2
16	Petroleum County	49.6	-0.4
18	Wheatland County	49.1	+0.5
19	Ravalli County	49	-0.1
20	Stillwater County	48	-0.3
21	Broadwater County	47.4	+0.5
21	Jefferson County	47.4	-0.1
23	Prairie County	47.2	-0.9
24	Fergus County	46.7	+1.2
25	Wibaux County	46.4	-1.3
26	Park County	46.2	-0.1
27	Phillips County	45.9	-0.8
28	Powell County	45.5	-0.2
29	Sheridan County	43.8	-1.3
30	Lake County	43.7	+1
31	Sweet Grass County	43.6	-1.8
32	Valley County	43.2	-0.4
33	Custer County	42.8	-0.2
33	Dawson County	42.8	+1.7
35	Chouteau County	42.4	+0.3
35	Teton County	42.4	-0.1
37	Beaverhead County	42.3	-0.1
37	Flathead County	42.3	0
39	Garfield County	42	-1.1
40	Pondera County	41.6	+0.3
41	Lewis and Clark County	41.2	+0.3
42	Toole County	40.4	-1.4
43	Silver Bow County	40.3	-0.2
44	Yellowstone County	38.4	-0.1
45	Richland County	38.3	0
46	Cascade County	37.9	-0.1
47	Fallon County	37.2	+2.1
48	Liberty County	36.9	-2.4
49	Missoula County	36.7	+0.4
50	Rosebud County	36.4	-0.3
51	Glacier County	34.2	+0.5
52	Blaine County	33.6	+0.1
53	Gallatin County	33.5	-0.2
54	Hill County	33.4	-0.7
55	Big Horn County	31.6	+0.3
56	Roosevelt County	30.4	+0.1

Other periods

2024
2023
2022
2021

About this ranking

Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b01002.dat. Retrieved 2026-10-08.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Montana by median age using official data, and cite the source.

rank_places {"indicator":"median_age","level":"province","within":"Montana","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=median_age&level=province&within=Montana&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest median age?

Meagher County, with 57.6 years in 2022, according to the U.S. Census Bureau.

Which county has the lowest median age?

Roosevelt County, with 30.4 years in 2022.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population. Retrieved 2026-10-08.