You’re probably never going to make enough money to live in the richest counties in Idaho.
The median household income in Teton County, the richest county in Idaho is $90,740, significantly higher than the US median of $74,580, which means based purely on math most people never make enough to live there.
And that’s okay because it’s still fun to look at the people living in the lap of luxury.
So we used Saturday Night Science and the most recent Census to rank home prices and incomes for all 44 counties in the Gem State. Let’s star gaze together.
Table Of Contents: Top Ten | Methodology | Table | Summary
The 10 Richest Counties In Idaho For 2025
- Teton County
- Blaine County
- Ada County
- Kootenai County
- Valley County
- Boise County
- Jefferson County
- Canyon County
- Bonneville County
- Gem County
What is the richest county in Idaho? The richest county in Idaho is Teton County. In contrast, the poorest county in state is Butte County, according to the Census data.
Now you know exactly where to move in Idaho. Keep on reading for more about the top ten and a detailed methodology.
Or, check out the best places to live in Idaho and the cheapest places to live in Idaho.
The Richest Counties In Idaho For 2025
1. Teton County
Biggest Place: Victor
Population: 12,101
Median Income: $90,740 (highest)
Median Home Price: $595,900 (3rd highest)
More on Teton County:
2. Blaine County
Biggest Place: Hailey
Population: 24,579
Median Income: $84,470 (3rd highest)
Median Home Price: $663,800 (highest)
More on Blaine County:
3. Ada County
Biggest Place: Boise City
Population: 508,052
Median Income: $88,907 (2nd highest)
Median Home Price: $476,000 (4th highest)
More on Ada County:
4. Kootenai County
Biggest Place: Coeur d’Alene
Population: 177,736
Median Income: $77,034 (6th highest)
Median Home Price: $467,400 (5th highest)
More on Kootenai County:
5. Valley County
Biggest Place: McCall
Population: 12,136
Median Income: $76,125 (9th highest)
Median Home Price: $599,500 (2nd highest)
More on Valley County:
6. Boise County
Biggest Place: Robie Creek
Population: 8,045
Median Income: $77,349 (5th highest)
Median Home Price: $424,100 (7th highest)
More on Boise County:
7. Jefferson County
Biggest Place: Rigby
Population: 32,234
Median Income: $82,952 (4th highest)
Median Home Price: $335,000 (13th highest)
More on Jefferson County:
8. Canyon County
Biggest Place: Nampa
Population: 242,405
Median Income: $72,355 (12th highest)
Median Home Price: $350,300 (10th highest)
More on Canyon County:
9. Bonneville County
Biggest Place: Idaho Falls
Population: 127,056
Median Income: $76,646 (8th highest)
Median Home Price: $327,000 (15th highest)
More on Bonneville County:
10. Gem County
Biggest Place: Emmett
Population: 19,854
Median Income: $66,245 (19th highest)
Median Home Price: $367,300 (8th highest)
More on Gem County:
Methodology: How do you determine which Idaho county is the richest?
To determine the richest county in Idaho, we have to look at a handful of metrics that correlate with how rich people are. To do that, we made assumptions about what makes a county rich. For reference, we are trying to make the kind of argument you’d make at a bar using facts, Saturday Night Science.
With that in mind, we went to the American Community Survey data and Zillow for the most recent reporting period for data on the following:
- Average Home Price
- Median Income
We then ranked each county in Idaho for each of the criteria from one to 44, with one being the richest.
Taking the average rank across the two criteria, we created a Rich Score with the county posting the lowest overall score being the “Richest County In Idaho.”
The result is some of the places with the most expensive real estate and highest earners in the Gem State.
We updated this article for 2025. This report is our first time ranking the richest counties to live in Idaho. We have also ranked the richest states and richest cities in the United States.
Summary: The Richest Counties In Idaho For 2025
Living in Idaho can vary from one part of the state to the next, with pretty extreme variance in home prices and incomes across counties.
The richest counties in Idaho are Teton County, Blaine County, Ada County, Kootenai County, Valley County, Boise County, Jefferson County, Canyon County, Bonneville County, and Gem County.
Now you know the parts of the state where Goodwill will have the best goodies, and that’s what you came here to learn at the end of the day.
You are welcome.
Here’s a look at the poorest counties in Idaho according to the data:
- Butte County
- Lewis County
- Clark County
For more Idaho reading, check out:
- Best Counties To Live In Idaho
- Cheapest Places To Live In Idaho
- Safest Places In Idaho
- Richest Cities In Idaho
Detailed List Of The Richest Counties In Idaho
| Rank | County | Population | Median Income | Average Home Price |
|---|---|---|---|---|
| 1 | Teton County | 12,101 | $90,740 | $595,900 |
| 2 | Blaine County | 24,579 | $84,470 | $663,800 |
| 3 | Ada County | 508,052 | $88,907 | $476,000 |
| 4 | Kootenai County | 177,736 | $77,034 | $467,400 |
| 5 | Valley County | 12,136 | $76,125 | $599,500 |
| 6 | Boise County | 8,045 | $77,349 | $424,100 |
| 7 | Jefferson County | 32,234 | $82,952 | $335,000 |
| 8 | Canyon County | 242,405 | $72,355 | $350,300 |
| 9 | Bonneville County | 127,056 | $76,646 | $327,000 |
| 10 | Gem County | 19,854 | $66,245 | $367,300 |
| 11 | Bonner County | 49,456 | $65,168 | $433,400 |
| 12 | Nez Perce County | 42,477 | $71,466 | $291,300 |
| 13 | Fremont County | 13,701 | $72,767 | $281,800 |
| 14 | Bingham County | 48,993 | $76,842 | $258,000 |
| 15 | Latah County | 40,315 | $65,179 | $342,500 |
| 16 | Payette County | 26,190 | $65,723 | $310,700 |
| 17 | Franklin County | 14,715 | $65,991 | $304,000 |
| 18 | Boundary County | 12,695 | $62,438 | $344,100 |
| 19 | Twin Falls County | 92,121 | $65,338 | $292,700 |
| 20 | Madison County | 53,578 | $58,259 | $365,000 |
| 21 | Cassia County | 25,165 | $67,042 | $257,300 |
| 22 | Jerome County | 24,788 | $69,338 | $254,000 |
| 23 | Adams County | 4,599 | $59,286 | $327,300 |
| 24 | Minidoka County | 21,922 | $70,060 | $235,300 |
| 25 | Oneida County | 4,681 | $72,563 | $228,100 |
| 26 | Idaho County | 17,120 | $60,975 | $284,600 |
| 27 | Bear Lake County | 6,552 | $67,304 | $234,200 |
| 28 | Bannock County | 88,457 | $64,080 | $267,200 |
| 29 | Custer County | 4,411 | $56,957 | $295,600 |
| 30 | Owyhee County | 12,284 | $59,773 | $281,600 |
| 31 | Caribou County | 7,118 | $66,653 | $220,200 |
| 32 | Elmore County | 29,046 | $58,976 | $278,300 |
| 33 | Lincoln County | 5,276 | $66,038 | $206,700 |
| 34 | Lemhi County | 8,166 | $52,057 | $282,100 |
| 35 | Gooding County | 15,740 | $62,395 | $231,800 |
| 36 | Benewah County | 9,913 | $56,553 | $255,800 |
| 37 | Clearwater County | 8,921 | $57,961 | $240,800 |
| 38 | Washington County | 10,866 | $53,608 | $250,300 |
| 39 | Camas County | 1,155 | $55,536 | $248,900 |
| 40 | Power County | 8,018 | $59,760 | $191,200 |
| 41 | Shoshone County | 13,580 | $49,975 | $222,700 |
| 42 | Clark County | 776 | $52,083 | $203,000 |
| 43 | Lewis County | 3,649 | $49,643 | $202,400 |
| 44 | Butte County | 2,654 | $43,281 | $195,800 |