Niobrara County, Wyoming

Niobrara County population, land area and income

Niobrara County had 2,301 residents in the Census Vintage 2024 estimate, on 2,626.0 square miles of land. It ranks 23rd of 23 in Wyoming by population and 16th by land area. That works out to 0.9 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in Wyoming has 14,250 residents, so Niobrara County has 16% of the typical county's population.

Its SAIPE 2023 median household income of $56,477 is below the national county median among 3,143 counties with an estimate.

How Niobrara County's population changed since 2020

Niobrara County lost 152 residents between the July 2020 and July 2024 estimates, a drop of 6.2%. That ranks 23rd of 23 in Wyoming for growth. The median Wyoming county changed by +0.9%, and the state as a whole by +1.7%.

Since the April 2020 estimates base, Niobrara County recorded 99 births and 138 deaths, a natural change of -39. Net international migration added +0 and net domestic migration, people moving to or from other US counties, came to -132. The largest single component was domestic migration, which removed 132 people.

Where Niobrara County is

The Census internal point of Niobrara County is at 43.062200, -104.468400. It sits in UTM zone 13N. The map shades Wyoming's 23 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Niobrara County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Niobrara County

One incorporated place of 1,000+ people has residents in Niobrara County, 1,401 people together, or 61% of the county. Each figure counts only the part of the town inside Niobrara County; towns marked "part" extend into another county. The largest is Lusk with 1,401.

Counties bordering Niobrara County

The Census 2024 county adjacency file lists 7 neighbors for Niobrara County, including 3 across a state line. The most populous is Converse County, WY, with 13,766 residents. Distances run between Census internal points in a straight line.

• Converse County

  13,766 people

  54 mi W

• Goshen County

  12,635 people

  67 mi S

• SD

  Custer County, SD

  9,330 people

  66 mi NE

• Platte County

  8,512 people

  69 mi SSW

• SD

  Fall River County, SD

  7,359 people

  49 mi ENE

• Weston County

  6,866 people

  54 mi N

• NE

  Sioux County, NE

  1,099 people

  55 mi SE

Distance to Cheyenne and the nearest big city

Cheyenne is 134.0 miles S of Niobrara County's internal point in a straight line. The nearest place of 100,000 or more is Fort Collins, CO (population 170,924), 176.4 miles away. The nearest place of 10,000 or more is Scottsbluff, NE (population 14,323), 92.1 miles away.

Niobrara County FIPS code

The FIPS code of Niobrara County is 56027: state code 56 for Wyoming plus county code 027. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $56,477.