What are the richest counties in Idaho?

Teton County ($99,805), Blaine County ($92,566) and Ada County ($91,502) had the highest median household income in Idaho in the 2020–24 survey.

Data as of 2024 · updated November 5, 2026

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All 43 ranked Idaho counties

Idaho counties ranked by median household income
Rank	County	Median household income 2020–24	Change since 2016–20	Residents
1	Teton County	$99,805	+36.2%	13,254
2	Blaine County	$92,566	+43.2%	25,517
3	Ada County	$91,502	+30.8%	546,141
4	Jefferson County	$86,679	+32.2%	35,297
5	Kootenai County	$81,861	+34.4%	191,864
6	Bonneville County	$79,068	+28.7%	135,771
7	Boise County	$78,774	+52.2%	8,545
8	Bingham County	$77,878	+33.7%	51,153
9	Canyon County	$76,488	+34.4%	275,123
10	Valley County	$76,078	+20.5%	12,831
11	Bear Lake County	$75,260	+42.5%	6,727
12	Oneida County	$74,954	+37.6%	5,085
13	Fremont County	$72,683	+27.9%	14,208
14	Nez Perce County	$72,599	+27.1%	42,905
15	Franklin County	$71,950	+20.0%	15,889
16	Jerome County	$71,724	+29.2%	26,362
17	Lincoln County	$71,453	+36.5%	5,603
18	Cassia County	$70,830	+35.5%	26,397
19	Minidoka County	$70,377	+32.8%	22,911
20	Caribou County	$68,782	+18.4%	7,252
21	Payette County	$67,673	+28.2%	27,824
22	Custer County	$67,574	+51.0%	4,636
23	Twin Falls County	$67,409	+26.3%	97,539
24	Boundary County	$67,237	+48.4%	13,997
25	Bonner County	$66,979	+29.8%	54,420
26	Bannock County	$66,499	+27.9%	91,591
27	Idaho County	$66,325	+47.5%	17,874
28	Latah County	$65,424	+27.5%	41,842
29	Elmore County	$65,359	+43.2%	29,465
30	Gem County	$64,605	+20.3%	21,773
31	Owyhee County	$64,406	+32.5%	12,661
32	Gooding County	$63,559	+27.0%	16,446
33	Adams County	$61,808	+22.9%	5,013
34	Power County	$61,146	+19.9%	8,246
35	Madison County	$60,160	+35.4%	55,172
36	Clearwater County	$60,000	+41.5%	9,118
37	Benewah County	$59,794	+24.6%	10,508
38	Camas County	$57,955	+57.0%	1,316
39	Shoshone County	$55,527	+37.2%	14,130
40	Washington County	$54,000	+28.2%	11,583
41	Lemhi County	$53,202	+37.1%	8,474
42	Butte County	$53,015	+41.7%	2,783
43	Lewis County	$51,615	+21.8%	3,704

1 of 44 Idaho counties are not ranked on this measure.

How this is ranked

Median household income from the Census Bureau's American Community Survey 5-year estimates (2020–24). Survey estimates carry margins of error, so counties a few hundred dollars apart may not really differ. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

Source: U.S. Census Bureau, American Community Survey 5-year estimates. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built. More on every layer: data sources and licences.

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Questions

Which county in Idaho has the highest median household income?

Teton County: $99,805, ahead of Blaine County ($92,566) and Ada County ($91,502), of 43 Idaho counties ranked.

How is this ranking calculated?

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Median household income in other states

Across the U.S.