Census Charts Index > Montana
Age and sex distributions for Montana counties are shown in this easy-to-read table and chart combination.
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Source: U.S. Census Bureau 2000 Census.
| Location | Population | Age % | Median Age | Males per 100 Females | Location | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| under 18 | 18-24 | 25-44 | 45-64 | 65 & over | All Ages | 18 & Over | ||||
| United States | 281,421,906 | 25.7 | 9.6 | 30.2 | 22.0 | 12.4 | 35.3 | 96.3 | 93.4 | United States |
| Montana | 902,195 | 25.5 | 9.5 | 27.2 | 24.4 | 13.4 | 37.5 | 99.3 | 97.2 | Montana |
| Beaverhead Co. | 9,202 | 24.6 | 11.9 | 25.1 | 24.9 | 13.6 | 37.6 | 105.0 | 102.5 | Beaverhead Co. |
| Big Horn Co. | 12,671 | 35.8 | 8.6 | 26.5 | 20.5 | 8.6 | 29.8 | 97.3 | 91.0 | Big Horn Co. |
| Blaine Co. | 7,009 | 32.6 | 8.0 | 24.8 | 21.6 | 12.9 | 34.4 | 97.5 | 96.3 | Blaine Co. |
| Broadwater Co. | 4,385 | 25.2 | 4.8 | 26.2 | 27.4 | 16.4 | 41.3 | 104.0 | 103.7 | Broadwater Co. |
| Carbon Co. | 9,552 | 24.0 | 5.7 | 26.1 | 27.3 | 16.8 | 41.9 | 100.4 | 97.3 | Carbon Co. |
| Carter Co. | 1,360 | 26.5 | 4.1 | 24.9 | 26.5 | 17.9 | 41.8 | 94.8 | 96.7 | Carter Co. |
| Cascade Co. | 80,357 | 26.0 | 9.1 | 28.1 | 22.8 | 14.0 | 36.7 | 97.9 | 95.7 | Cascade Co. |
| Chouteau Co. | 5,970 | 28.8 | 6.5 | 24.1 | 23.1 | 17.5 | 39.3 | 100.8 | 97.1 | Chouteau Co. |
| Custer Co. | 11,696 | 25.1 | 8.4 | 25.6 | 23.8 | 17.1 | 39.3 | 95.8 | 91.2 | Custer Co. |
| Daniels Co. | 2,017 | 22.1 | 4.9 | 20.0 | 29.5 | 23.5 | 47.0 | 96.0 | 97.9 | Daniels Co. |
| Dawson Co. | 9,059 | 23.1 | 8.8 | 24.9 | 25.4 | 17.7 | 41.0 | 98.3 | 99.9 | Dawson Co. |
| Deer Lodge Co. | 9,417 | 22.5 | 7.9 | 24.0 | 26.8 | 18.8 | 42.3 | 99.8 | 97.3 | Deer Lodge Co. |
| Fallon Co. | 2,837 | 25.5 | 6.2 | 25.5 | 24.8 | 17.9 | 41.1 | 102.2 | 96.7 | Fallon Co. |
| Fergus Co. | 11,893 | 24.5 | 6.1 | 23.6 | 25.8 | 19.9 | 42.4 | 94.8 | 93.4 | Fergus Co. |
| Flathead Co. | 74,471 | 25.9 | 7.4 | 27.4 | 26.4 | 13.0 | 39.0 | 98.3 | 96.1 | Flathead Co. |
| Gallatin Co. | 67,831 | 22.0 | 18.5 | 30.4 | 20.6 | 8.5 | 30.7 | 108.3 | 108.7 | Gallatin Co. |
| Garfield Co. | 1,279 | 24.5 | 7.1 | 23.3 | 25.8 | 19.3 | 41.6 | 106.6 | 103.4 | Garfield Co. |
| Glacier Co. | 13,247 | 34.9 | 9.1 | 26.9 | 19.9 | 9.2 | 30.6 | 97.9 | 94.1 | Glacier Co. |
| Golden Valley Co. | 1,042 | 27.6 | 5.9 | 23.0 | 27.0 | 16.5 | 41.5 | 107.2 | 103.2 | Golden Valley Co. |
| Granite Co. | 2,830 | 24.2 | 5.7 | 23.3 | 30.8 | 15.9 | 42.8 | 105.1 | 102.6 | Granite Co. |
| Hill Co. | 16,673 | 28.2 | 11.6 | 26.0 | 21.4 | 12.8 | 34.5 | 99.3 | 96.4 | Hill Co. |
| Jefferson Co. | 10,049 | 27.8 | 5.2 | 26.8 | 29.9 | 10.3 | 40.2 | 100.8 | 100.4 | Jefferson Co. |
| Judith Basin Co. | 2,329 | 26.8 | 4.6 | 23.3 | 28.2 | 17.2 | 42.0 | 107.9 | 103.9 | Judith Basin Co. |
| Lake Co. | 26,507 | 28.1 | 8.0 | 24.5 | 24.9 | 14.5 | 38.2 | 96.7 | 93.1 | Lake Co. |
| Lewis and Clark Co. | 55,716 | 25.6 | 8.5 | 27.9 | 26.2 | 11.7 | 38.0 | 96.5 | 94.0 | Lewis and Clark Co. |
| Liberty Co. | 2,158 | 25.8 | 5.8 | 24.7 | 24.1 | 19.7 | 41.5 | 97.1 | 93.6 | Liberty Co. |
| Lincoln Co. | 18,837 | 25.3 | 5.5 | 24.2 | 29.7 | 15.2 | 42.1 | 102.7 | 100.5 | Lincoln Co. |
| McCone Co. | 1,977 | 24.8 | 5.4 | 24.3 | 26.5 | 18.9 | 42.4 | 99.7 | 103.3 | McCone Co. |
| Madison Co. | 6,851 | 22.9 | 4.9 | 25.0 | 30.1 | 17.2 | 43.4 | 102.3 | 103.9 | Madison Co. |
| Meagher Co. | 1,932 | 25.0 | 6.1 | 22.7 | 28.1 | 18.2 | 42.8 | 100.4 | 100.4 | Meagher Co. |
| Location | Population | Age % | Median Age | Males per 100 Females | Location | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| under 18 | 18-24 | 25-44 | 45-64 | 65 & over | All Ages | 18 & Over | ||||
| United States | 281,421,906 | 25.7 | 9.6 | 30.2 | 22.0 | 12.4 | 35.3 | 96.3 | 93.4 | United States |
| Montana | 902,195 | 25.5 | 9.5 | 27.2 | 24.4 | 13.4 | 37.5 | 99.3 | 97.2 | Montana |
| Mineral Co. | 3,884 | 24.3 | 6.4 | 25.3 | 29.8 | 14.2 | 41.1 | 106.2 | 105.6 | Mineral Co. |
| Missoula Co. | 95,802 | 22.9 | 15.4 | 29.2 | 22.6 | 10.0 | 33.2 | 99.9 | 98.0 | Missoula Co. |
| Musselshell Co. | 4,497 | 23.4 | 5.7 | 24.0 | 29.4 | 17.5 | 43.2 | 95.4 | 95.7 | Musselshell Co. |
| Park Co. | 15,694 | 23.5 | 6.5 | 27.9 | 27.1 | 14.9 | 40.6 | 97.4 | 96.1 | Park Co. |
| Petroleum Co. | 493 | 26.0 | 6.1 | 22.7 | 28.2 | 17.0 | 41.1 | 110.7 | 111.0 | Petroleum Co. |
| Phillips Co. | 4,601 | 27.3 | 5.5 | 24.5 | 25.1 | 17.6 | 40.8 | 100.4 | 95.6 | Phillips Co. |
| Pondera Co. | 6,424 | 29.6 | 6.4 | 24.8 | 22.9 | 16.3 | 38.6 | 97.4 | 95.4 | Pondera Co. |
| Powder River Co. | 1,858 | 26.6 | 4.8 | 23.3 | 26.8 | 18.5 | 42.1 | 97.2 | 95.4 | Powder River Co. |
| Powell Co. | 7,180 | 21.2 | 7.8 | 30.8 | 26.2 | 14.0 | 39.7 | 143.2 | 151.4 | Powell Co. |
| Prairie Co. | 1,199 | 18.7 | 4.3 | 20.0 | 32.9 | 24.1 | 48.9 | 106.7 | 106.1 | Prairie Co. |
| Ravalli Co. | 36,070 | 25.6 | 6.2 | 24.7 | 28.0 | 15.5 | 41.1 | 98.6 | 95.4 | Ravalli Co. |
| Richland Co. | 9,667 | 27.5 | 6.4 | 26.8 | 23.8 | 15.6 | 39.2 | 98.7 | 94.9 | Richland Co. |
| Roosevelt Co. | 10,620 | 34.6 | 7.9 | 25.8 | 20.2 | 11.6 | 32.3 | 98.3 | 93.7 | Roosevelt Co. |
| Rosebud Co. | 9,383 | 33.5 | 7.2 | 25.7 | 24.8 | 8.9 | 34.5 | 100.9 | 99.2 | Rosebud Co. |
| Sanders Co. | 10,227 | 23.8 | 5.5 | 22.1 | 31.8 | 16.9 | 44.2 | 102.1 | 100.5 | Sanders Co. |
| Sheridan Co. | 4,105 | 22.9 | 4.8 | 22.2 | 26.5 | 23.6 | 45.1 | 98.7 | 96.8 | Sheridan Co. |
| Silver Bow Co. | 34,606 | 23.7 | 9.6 | 26.7 | 24.0 | 16.0 | 38.9 | 97.8 | 96.3 | Silver Bow Co. |
| Stillwater Co. | 8,195 | 25.3 | 5.7 | 26.9 | 27.6 | 14.5 | 40.8 | 104.0 | 102.8 | Stillwater Co. |
| Sweet Grass Co. | 3,609 | 26.0 | 5.3 | 24.7 | 26.4 | 17.6 | 41.2 | 99.5 | 98.1 | Sweet Grass Co. |
| Teton Co. | 6,445 | 27.3 | 6.1 | 24.6 | 25.4 | 16.6 | 40.0 | 97.0 | 96.0 | Teton Co. |
| Toole Co. | 5,267 | 25.5 | 6.8 | 28.2 | 23.6 | 15.9 | 39.1 | 106.5 | 107.2 | Toole Co. |
| Treasure Co. | 861 | 27.8 | 5.0 | 23.2 | 27.3 | 16.7 | 41.8 | 104.0 | 101.9 | Treasure Co. |
| Valley Co. | 7,675 | 25.1 | 6.0 | 24.3 | 25.6 | 19.0 | 41.7 | 98.2 | 95.1 | Valley Co. |
| Wheatland Co. | 2,259 | 26.8 | 6.4 | 22.0 | 25.5 | 19.3 | 41.4 | 98.0 | 99.2 | Wheatland Co. |
| Wibaux Co. | 1,068 | 25.8 | 5.8 | 22.5 | 24.3 | 21.5 | 42.3 | 92.4 | 92.2 | Wibaux Co. |
| Yellowstone Co. | 129,352 | 25.5 | 9.3 | 28.7 | 23.2 | 13.3 | 36.9 | 95.2 | 91.6 | Yellowstone Co. |
The entries under the Age % heading are percentages showing the age distribution. For example, the entry in the first row (United States) in the under 18 column is 25.7, meaning that 25.7% of the U.S. population is under 18 years of age. The Age% values add up to approximately 100%.
The length of the colored bars in each Age % table cell are in proportion to the value of the number in the cell. For example, the colored bar in the cell showing 25.7 is 25.7% as wide as the cell.
The length of the colored bars under the Males per 100 Females header are proportional to the value when converted to percentages. For example, 110 males per 100 females = 110 males per 210 people = 52.4%.
The numeric values under the Population header are totals. Here the colored bars represent percentages of the highest population of any county in the state. For example, the county with the highest population will have a colored bar that fills the cell. A county with half that many people will have a colored bar that fills half the cell. For small percentages the bar does not appear.
Abbreviations used in location names: Co.=County, C.A.=Census Area, Pa.=Parish, Mu.=Municipio.
Interested in Montana? Check out Montana Climate for data and charts about average weather, daylight, and global warming.
Please note that if you set your browser to display very large text sizes, the table cell sizes will change, and the lengths of the colored bars will not be accurate, although they will still show proportions.
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