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 $99,805, 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.
What is the richest county in Idaho? The richest county in Idaho is Teton County. In contrast, the poorest county in the state is Butte County, according to the Census data.
$99,805 median income · $864,221 median home price
$92,566 median income · $1,084,018 median home price
$91,502 median income · $521,625 median home price
$81,861 median income · $596,723 median home price
$76,078 median income · $675,255 median home price
$78,774 median income · $477,627 median home price
$86,679 median income · $465,392 median home price
$72,683 median income · $471,061 median home price
$79,068 median income · $400,910 median home price
$76,488 median income · $414,203 median home price
The receipts
Compare the top ten
Pick a metric. The bars rescale. The red line is Idaho’s statewide median.
Idaho statewide median: $77,800
Idaho statewide median: $473,335
On the map
Where Idaho’s richest counties are
Saturday Night Science
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 2026. This report is our first time ranking the richest counties to live in Idaho. The median Idaho home is 33 years old — old enough that it pays to compare home warranty plans before something expensive breaks.
The full plate
Detailed List Of The Richest Counties In Idaho
Click any column to sort. Search by county name.
| Rank | County | Population | Median Income | Average Home Price |
|---|---|---|---|---|
| 1 | Teton County | 12,425 | $99,805 | $864,221 |
| 1 | Blaine County | 24,951 | $92,566 | $1,084,018 |
| 3 | Ada County | 518,935 | $91,502 | $521,625 |
| 4 | Kootenai County | 181,996 | $81,861 | $596,723 |
| 5 | Valley County | 12,389 | $76,078 | $675,255 |
| 6 | Boise County | 8,273 | $78,774 | $477,627 |
| 6 | Jefferson County | 33,154 | $86,679 | $465,392 |
| 8 | Fremont County | 13,943 | $72,683 | $471,061 |
| 9 | Bonneville County | 129,523 | $79,068 | $400,910 |
| 9 | Canyon County | 250,790 | $76,488 | $414,203 |
| 11 | Bonner County | 51,049 | $66,979 | $648,285 |
| 11 | Franklin County | 15,056 | $71,950 | $438,371 |
| 13 | Bingham County | 49,664 | $77,878 | $381,816 |
| 13 | Bear Lake County | 6,650 | $75,260 | $386,602 |
| 15 | Jerome County | 25,173 | $71,724 | $399,325 |
| 16 | Nez Perce County | 42,697 | $72,599 | $384,386 |
| 16 | Boundary County | 13,172 | $67,237 | $459,532 |
| 18 | Payette County | 26,771 | $67,673 | $411,024 |
| 18 | Gem County | 20,614 | $64,605 | $474,995 |
| 20 | Adams County | 4,744 | $61,808 | $509,845 |
| 20 | Latah County | 41,049 | $65,424 | $464,968 |
| 23 | Owyhee County | 12,503 | $64,406 | $435,050 |
| 23 | Oneida County | 4,768 | $74,954 | $336,708 |
| 23 | Custer County | 4,470 | $67,574 | $384,183 |
| 25 | Twin Falls County | 93,734 | $67,409 | $377,542 |
| 26 | Cassia County | 25,483 | $70,830 | $344,658 |
| 27 | Madison County | 54,618 | $60,160 | $411,979 |
| 28 | Caribou County | 7,162 | $68,782 | $330,406 |
| 28 | Lincoln County | 5,358 | $71,453 | $318,970 |
| 30 | Minidoka County | 22,208 | $70,377 | $323,367 |
| 31 | Idaho County | 17,432 | $66,325 | $353,958 |
| 32 | Bannock County | 89,454 | $66,499 | $352,606 |
| 32 | Elmore County | 29,321 | $65,359 | $355,620 |
| 34 | Camas County | 1,124 | $57,955 | $394,863 |
| 35 | Gooding County | 15,931 | $63,559 | $353,516 |
| 36 | Washington County | 11,142 | $54,000 | $380,273 |
| 37 | Lemhi County | 8,249 | $53,202 | $376,605 |
| 38 | Benewah County | 10,142 | $59,794 | $329,393 |
| 39 | Clearwater County | 9,012 | $60,000 | $306,783 |
| 40 | Power County | 8,133 | $61,146 | $267,828 |
| 41 | Shoshone County | 13,785 | $55,527 | $271,213 |
| 42 | Clark County | 849 | $55,208 | $258,957 |
| 43 | Lewis County | 3,682 | $51,615 | $283,684 |
| 44 | Butte County | 2,684 | $53,015 | $246,053 |
Source: U.S. Census ACS + Zillow via Saturday Night Science. All 44 Idaho counties.
Summary
Summary: The Richest Counties In Idaho For 2026
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, Fremont County, Bonneville County, and Canyon 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. Not sold on Idaho? Take the two-minute Find Your Place quiz and see which state actually fits you.
Questions and answers
Richest Counties In Idaho FAQs
What is the richest county in Idaho?
Teton County is the richest county in Idaho for 2026, with a median household income of $99,805. Blaine County and Ada County are next.
What are the richest counties in Idaho?
The richest counties in Idaho are Teton County, Blaine County, Ada County, Kootenai County, Valley County, Boise County, Jefferson County, Fremont County, Bonneville County, and Canyon County. We ranked all 44 Idaho counties on average home price and median income.
How much do people make in Teton County?
The median household in Teton County earns $99,805 a year, against a Idaho statewide median of $77,800. The US median household income is $74,580.
What do homes cost in the richest counties of Idaho?
The median home across the ten richest Idaho counties is $499,626, versus $473,335 statewide. In Teton County, the typical home runs $864,221.
What is the poorest county in Idaho?
Butte County is the poorest county in Idaho by this ranking, coming in last of the 44 counties we scored on income and home prices.
