| Country | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| United States | 215 | 151 | (D) | (D) |
| State | Number of speakers | Margin of Error | Speak English less than "Very Well" | Margin of Error |
| Montana | 165 | 143 | (D) | (D) |
| Idaho | 45 | 46 | (B) | - |