• county
  • FIPS 30083
  • Largest town: Sidney

Richland County, Montana

Richland County had 11,028 residents in the Census Vintage 2024 estimate, on 2,084.6 square miles of land. It ranks 20th of 56 in Montana by population and 32nd by land area.

Population
11,028
#20 of 56 in Montana · #2,343 in US
Area
2,084.6 sq mi
#32 of 56 in Montana · #271 in US
Density
5.3 / sq mi
#17 of 56 in Montana · #2,757 in US
Median household income
$74,540
#5 of 56 in Montana · #698 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Richland County within Montana. Pin: Helena.

Measure from here

Tools and pages that start from Richland County

Richland County population, land area and income

Richland County had 11,028 residents in the Census Vintage 2024 estimate, on 2,084.6 square miles of land. It ranks 20th of 56 in Montana by population and 32nd by land area. That works out to 5.3 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in Montana has 7,814 residents; Richland County is somewhat larger.

Its SAIPE 2023 median household income of $74,540 is in the top quarter among 3,143 counties with an estimate.

National rank among 3,144

Population

11,028

3144th1st

2343rd of 3,144 (US)

Land area

2,085 sq mi

3144th1st

271st of 3,144 (US)

Density

5.3 / sq mi

3144th1st

2757th of 3,144 (US)

Median household income

$74,540

3143rd1st

698th of 3,143 (US)

Rank within Montana (56)

Population

11,028

56th1st

20th of 56 (MT)

Land area

2,085 sq mi

56th1st

32nd of 56 (MT)

Density

5.3 / sq mi

56th1st

17th of 56 (MT)

Median household income

$74,540

56th1st

5th of 56 (MT)

How Richland County's population changed since 2020

Richland County lost 506 residents between the July 2020 and July 2024 estimates, a drop of 4.4%. That ranks 55th of 56 in Montana for growth. The median Montana county changed by +2.8%, and the state as a whole by +4.6%.

Since the April 2020 estimates base, Richland County recorded 543 births and 486 deaths, a natural change of +57. Net international migration added +79 and net domestic migration, people moving to or from other US counties, came to -603. The largest single component was domestic migration, which removed 603 people.

11.5k202011.3k202111.2k202211.1k202311.0k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
543
Deaths
486
Net international migration
+79
Net domestic migration
-603
Change, July 2023 to July 2024
-66

Where Richland County is

The Census internal point of Richland County is at 47.785600, -104.563400. It sits in UTM zone 13N. The map shades Montana's 56 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Richland County outlined. Dots are towns of 1,000+ people with residents in it.

Liberty County: -1.2%Golden Valley County: +5.1%Dawson County: -2.1%Flathead County: +9.2%Beaverhead County: +6.7%Prairie County: +2.0%Garfield County: +0.9%Lewis and Clark County: +5.5%Sweet Grass County: +2.4%Wheatland County: -0.7%Ravalli County: +8.5%Jefferson County: +9.6%Carter County: -0.6%Chouteau County: -0.6%Custer County: +0.9%Teton County: +3.1%Granite County: +9.0%Deer Lodge County: +4.1%Cascade County: +0.1%Powder River County: +2.4%Meagher County: +7.3%Daniels County: -1.7%Glacier County: -1.8%Wibaux County: -2.7%Fallon County: -2.7%McCone County: -0.7%Sheridan County: -2.5%Missoula County: +3.5%Toole County: +3.7%Sanders County: +11.5%Roosevelt County: -5.6%Rosebud County: -1.3%Treasure County: -2.5%Yellowstone County: +3.9%Blaine County: -1.4%Musselshell County: +14.8%Broadwater County: +21.0%Powell County: +2.6%Fergus County: +3.4%Phillips County: +0.1%Gallatin County: +6.2%Silver Bow County: +2.6%Madison County: +12.6%Richland County: -4.4%Lake County: +6.9%Valley County: -1.7%Judith Basin County: +4.3%Hill County: -1.2%Big Horn County: -2.2%Stillwater County: +5.0%Carbon County: +9.4%Mineral County: +13.7%Petroleum County: +4.6%Pondera County: +3.4%Park County: +4.9%Lincoln County: +12.4%
Change 2020 to 2024
  1. < -1.4%
  2. < +0.9%
  3. < +3.9%
  4. < +7.3%
  5. ≥ +7.3%
no data

Orange pin: Richland County internal point. Dark pin: Helena.

Internal point

Decimal
47.785600, -104.563400
DMS
47°47'8.16"N 104°33'48.24"W
UTM
13N 532703.1E 5292563.3N
Geohash
c8mxue572
Plus code
85VQQCPP+6J

Towns in Richland County

One incorporated place of 1,000+ people has residents in Richland County, 6,031 people together, or 55% of the county. Each figure counts only the part of the town inside Richland County; towns marked "part" extend into another county. The largest is Sidney with 6,031.

  1. 01Sidney6,031
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Richland County

The Census 2024 county adjacency file lists 6 neighbors for Richland County, including 2 across a state line. The most populous is Williams County, ND, with 40,763 residents. Distances run between Census internal points in a straight line.

Distance to Helena and the nearest big city

Helena is 359.5 miles W of Richland County's internal point in a straight line. The nearest place of 100,000 or more is Billings, MT (population 121,483), 233.8 miles away. The nearest place of 10,000 or more is Williston, ND (population 28,821), 50.6 miles away.

Richland County FIPS code

The FIPS code of Richland County is 30083: state code 30 for Montana plus county code 083. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $74,540.

Questions people ask

What is the population of Richland County, Montana?

The Census Vintage 2024 estimate for July 1, 2024 is 11,028. That is down 506 people (4.4%) from the July 2020 estimate of 11,534.

What is the FIPS code of Richland County?

30083. The first two digits (30) are Montana; the last three (083) identify the county.

What is the largest town in Richland County?

Sidney, with 6,031 residents inside Richland County in 2024.

Which counties border Richland County?

6 county-equivalents border it in the Census 2024 adjacency file: Williams County, ND; McKenzie County, ND; Roosevelt County, MT; Dawson County, MT; McCone County, MT; Wibaux County, MT.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.