The 10 Richest Counties In Montana For 2026

The richest counties in Montana are Gallatin County and Jefferson County for 2026 based on Saturday Night Science.

You’re probably never going to make enough money to live in the richest counties in Montana.

The median household income in Gallatin County, the richest county in Montana is $93,528, 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 56 counties in the Treasure State. Let’s star gaze together.

What is the richest county in Montana? The richest county in Montana is Gallatin County. In contrast, the poorest county in the state is Prairie County, according to the Census data.

1

No. 1 richest county in Montana

Gallatin County, MT

124,074 people
$93,528 median income · $697,179 median home price
Median income +29% vs MT
$93,528
MT $73k
Median home value +49% vs MT
$697,179
MT $467k
2

No. 2 richest county in Montana

Jefferson County, MT

12,774 people
$95,490 median income · $529,867 median home price
Median income +32% vs MT
$95,490
MT $73k
Median home value +13% vs MT
$529,867
MT $467k
3

No. 3 richest county in Montana

Madison County, MT

9,223 people
$75,250 median income · $748,296 median home price
Median income +4% vs MT
$75,250
MT $73k
Median home value +60% vs MT
$748,296
MT $467k
4

No. 4 richest county in Montana

Flathead County, MT

110,695 people
$73,925 median income · $639,812 median home price
Median income +2% vs MT
$73,925
MT $73k
Median home value +37% vs MT
$639,812
MT $467k
4

No. 4 richest county in Montana

Carbon County, MT

11,116 people
$80,261 median income · $508,256 median home price
Median income +11% vs MT
$80,261
MT $73k
Median home value +9% vs MT
$508,256
MT $467k
6

No. 6 richest county in Montana

Stillwater County, MT

9,182 people
$84,732 median income · $485,137 median home price
Median income +17% vs MT
$84,732
MT $73k
Median home value +4% vs MT
$485,137
MT $467k
7

No. 7 richest county in Montana

Missoula County, MT

120,672 people
$75,598 median income · $570,556 median home price
Median income +4% vs MT
$75,598
MT $73k
Median home value +22% vs MT
$570,556
MT $467k
8

No. 8 richest county in Montana

Sweet Grass County, MT

3,720 people
$77,000 median income · $486,041 median home price
Median income +6% vs MT
$77,000
MT $73k
Median home value +4% vs MT
$486,041
MT $467k
9

No. 9 richest county in Montana

Lewis and Clark County, MT

73,464 people
$78,237 median income · $462,125 median home price
Median income +8% vs MT
$78,237
MT $73k
Median home value -1% vs MT
$462,125
MT $467k
10

No. 10 richest county in Montana

Ravalli County, MT

46,727 people
$71,283 median income · $596,540 median home price
Median income -2% vs MT
$71,283
MT $73k
Median home value +28% vs MT
$596,540
MT $467k

The receipts

Compare the top ten

Pick a metric. The bars rescale. The red line is Montana’s statewide median.

City Median income vs MT
1 Gallatin County $93,528 +29%
2 Jefferson County $95,490 +32%
3 Madison County $75,250 +4%
4 Flathead County $73,925 +2%
4 Carbon County $80,261 +11%
6 Stillwater County $84,732 +17%
7 Missoula County $75,598 +4%
8 Sweet Grass County $77,000 +6%
9 Lewis and Clark County $78,237 +8%
10 Ravalli County $71,283 -2%

Montana statewide median: $72,509

City Median home value vs MT
1 Gallatin County $697,179 +49%
2 Jefferson County $529,867 +13%
3 Madison County $748,296 +60%
4 Flathead County $639,812 +37%
4 Carbon County $508,256 +9%
6 Stillwater County $485,137 +4%
7 Missoula County $570,556 +22%
8 Sweet Grass County $486,041 +4%
9 Lewis and Clark County $462,125 -1%
10 Ravalli County $596,540 +28%

Montana statewide median: $466,917

City Population vs MT
1 Gallatin County 124,074
2 Jefferson County 12,774
3 Madison County 9,223
4 Flathead County 110,695
4 Carbon County 11,116
6 Stillwater County 9,182
7 Missoula County 120,672
8 Sweet Grass County 3,720
9 Lewis and Clark County 73,464
10 Ravalli County 46,727
The fine print The median Montana home is 43 years old Furnaces, water heaters, and roofs don’t care what you paid at closing. See what a warranty would cover before something expensive breaks. Compare home warranties →

On the map

Where Montana’s richest counties are

Saturday Night Science

Methodology: How do you determine which Montana county is the richest?

To determine the richest county in Montana, 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 Montana for each of the criteria from one to 56, 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 Montana.”

The result is some of the places with the most expensive real estate and highest earners in the Treasure State.

We updated this article for 2026. This report is our first time ranking the richest counties to live in Montana. The median Montana home is 43 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 Montana

Click any column to sort. Search by county name.

RankCountyPopulationMedian IncomeAverage Home Price
1Gallatin County124,074$93,528$697,179
2Jefferson County12,774$95,490$529,867
3Madison County9,223$75,250$748,296
4Flathead County110,695$73,925$639,812
4Carbon County11,116$80,261$508,256
6Stillwater County9,182$84,732$485,137
7Missoula County120,672$75,598$570,556
8Sweet Grass County3,720$77,000$486,041
9Lewis and Clark County73,464$78,237$462,125
10Ravalli County46,727$71,283$596,540
11Park County17,710$70,047$601,228
11Yellowstone County168,957$76,570$393,359
13Broadwater County7,668$70,374$524,251
14Teton County6,353$70,430$349,224
14Lake County32,561$63,360$585,034
16Meagher County2,007$71,932$312,169
17Richland County11,235$73,084$274,829
18Garfield County1,094$69,583$337,113
19Cascade County84,606$67,690$337,138
20Mineral County4,959$63,450$382,886
22Beaverhead County9,713$61,268$399,744
22Powell County7,053$66,923$318,530
22Granite County3,462$59,265$442,322
24Custer County11,961$70,605$246,185
26Powder River County1,815$67,045$299,261
26Fergus County11,687$63,706$314,071
26Fallon County2,760$76,250$192,157
28McCone County1,670$69,375$254,778
29Sanders County13,285$57,476$447,471
30Treasure County732$67,917$246,157
31Dawson County8,827$71,334$192,885
32Valley County7,519$71,695$182,545
32Silver Bow County35,785$61,754$280,525
34Judith Basin County2,071$59,000$304,861
34Wibaux County1,193$67,462$239,789
36Chouteau County5,906$58,218$314,698
37Lincoln County21,175$47,143$426,012
39Deer Lodge County9,597$57,527$286,576
39Blaine County6,949$64,813$214,055
39Sheridan County3,669$70,147$176,230
41Golden Valley County899$58,333$248,587
42Musselshell County5,152$58,920$241,728
43Petroleum County447$60,208$211,297
44Big Horn County12,891$58,750$217,738
45Pondera County6,035$52,338$260,328
45Liberty County1,952$57,857$223,792
47Hill County16,155$52,798$231,658
48Phillips County4,221$53,417$223,069
49Rosebud County8,165$49,914$224,632
49Toole County5,061$57,731$181,922
51Carter County1,308$54,167$187,364
52Daniels County1,494$55,625$168,085
52Roosevelt County10,526$57,063$143,771
54Wheatland County2,056$49,489$176,919
55Glacier County13,637$46,875$178,024
56Prairie County1,250$51,250$139,580

Source: U.S. Census ACS + Zillow via Saturday Night Science. All 56 Montana counties.

Summary

Summary: The Richest Counties In Montana For 2026

Living in Montana 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 Montana are Gallatin County, Jefferson County, Madison County, Flathead County, Carbon County, Stillwater County, Missoula County, Sweet Grass County, Lewis and Clark County, and Ravalli 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 Montana? Take the two-minute Find Your Place quiz and see which state actually fits you.

Questions and answers

Richest Counties In Montana FAQs

What is the richest county in Montana?

Gallatin County is the richest county in Montana for 2026, with a median household income of $93,528. Jefferson County and Madison County are next.

What are the richest counties in Montana?

The richest counties in Montana are Gallatin County, Jefferson County, Madison County, Flathead County, Carbon County, Stillwater County, Missoula County, Sweet Grass County, Lewis and Clark County, and Ravalli County. We ranked all 56 Montana counties on average home price and median income.

How much do people make in Gallatin County?

The median household in Gallatin County earns $93,528 a year, against a Montana statewide median of $72,509. The US median household income is $74,580.

What do homes cost in the richest counties of Montana?

The median home across the ten richest Montana counties is $550,212, versus $466,917 statewide. In Gallatin County, the typical home runs $697,179.

What is the poorest county in Montana?

Prairie County is the poorest county in Montana by this ranking, coming in last of the 56 counties we scored on income and home prices.

Keep reading

More rankings worth a look

Chris Kolmar
About the author

Chris Kolmar has been in the real estate business for almost ten years now. He originally worked for Movoto Real Estate as the director of marketing before founding HomeSnacks.

He believes the key to finding the right place to live comes down to looking at the data, reading about things to do, and, most importantly, checking it out yourself before you move.

If you've been looking for a place to live in the past several years, you've probably stumbled upon his writing already.

You can find out more about him on LinkedIn or his website.

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