Ranking of Idaho Counties By Average Household Income in 2021 (ACS-5Yrs)
Updated on March 13, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the Average Household Income for Idaho was $83,777. Among all Idaho counties, Ada County had the highest average household income ($101,716), followed by Blaine County ($100,650), and Teton County ($91,465). On the other hand, the following 3 counties had the lowest average household income: Clark County ($52,715), Custer County ($54,230), and Washington County ($57,207).
The chart below shows the top 10 Idaho counties with high average household income, and the table below shows the ranking of all Idaho counties.
You can also see similar information for other states and for the United States.
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Related Topics: Idaho ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of Idaho Counties By Average Household Income in 2021
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| Rank | County | Average Household Income ($) |
|---|---|---|
| 1 | Ada County | 101716 |
| 2 | Blaine County | 100650 |
| 3 | Teton County | 91465 |
| 4 | Bonneville County | 85495 |
| 5 | Kootenai County | 83688 |
| 6 | Jefferson County | 83354 |
| 7 | Valley County | 82031 |
| 8 | Nez Perce County | 80069 |
| 9 | Bingham County | 79611 |
| 10 | Jerome County | 77355 |
| 11 | Madison County | 77337 |
| 12 | Twin Falls County | 77269 |
| 13 | Adams County | 77054 |
| 14 | Gem County | 76538 |
| 15 | Payette County | 76256 |
| 16 | Latah County | 76071 |
| 17 | Caribou County | 76059 |
| 18 | Bonner County | 75442 |
| 19 | Cassia County | 75336 |
| 20 | Camas County | 75164 |
| 21 | Canyon County | 74703 |
| 22 | Boise County | 74680 |
| 23 | Bear Lake County | 74431 |
| 24 | Franklin County | 74171 |
| 25 | Bannock County | 72228 |
| 26 | Boundary County | 70926 |
| 27 | Gooding County | 70696 |
| 28 | Fremont County | 70001 |
| 29 | Oneida County | 68989 |
| 30 | Minidoka County | 68630 |
| 31 | Owyhee County | 68384 |
| 32 | Lincoln County | 66667 |
| 33 | Power County | 66336 |
| 34 | Idaho County | 63103 |
| 35 | Benewah County | 62704 |
| 36 | Elmore County | 61979 |
| 37 | Lemhi County | 61716 |
| 38 | Clearwater County | 61627 |
| 39 | Lewis County | 60662 |
| 40 | Butte County | 59103 |
| 41 | Shoshone County | 57416 |
| 42 | Washington County | 57207 |
| 43 | Custer County | 54230 |
| 44 | Clark County | 52715 |