Iron County, Utah

Iron County population, land area and income

Iron County had 65,936 residents in the Census Vintage 2024 estimate, on 3,296.2 square miles of land. It ranks 8th of 29 in Utah by population and 11th by land area. That works out to 20.0 people per square mile, below the US average of 96.3, and below the national county median.

The median county-equivalent in Utah has 20,803 residents, so Iron County is 3.2 times that size.

Its SAIPE 2023 median household income of $68,170 is above the national county median among 3,143 counties with an estimate.

How Iron County's population changed since 2020

Iron County gained 8,225 residents between the July 2020 and July 2024 estimates, a rise of 14.3%. That ranks 2nd of 29 in Utah for growth. The median Utah county changed by +5.7%, and the state as a whole by +6.7%.

Since the April 2020 estimates base, Iron County recorded 3,520 births and 1,765 deaths, a natural change of +1,755. Net international migration added +892 and net domestic migration, people moving to or from other US counties, came to +6,056. The largest single component was domestic migration, which added 6,056 people.

Where Iron County is

The Census internal point of Iron County is at 37.909300, -113.306700. It sits in UTM zone 12N. The map shades Utah's 29 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Iron County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Iron County

3 incorporated places of 1,000+ people have residents in Iron County, 52,832 people together, or 80% of the county. Each figure counts only the part of the town inside Iron County; towns marked "part" extend into another county. The largest is Cedar City with 40,885.

Counties bordering Iron County

The Census 2024 county adjacency file lists 5 neighbors for Iron County, including 1 across a state line. The most populous is Washington County, UT, with 207,943 residents. Distances run between Census internal points in a straight line.

• Washington County

  207,943 people

  46 mi SSW

• Kane County

  8,525 people

  93 mi ESE

• Beaver County

  7,424 people

  31 mi N

• Garfield County

  5,290 people

  101 mi E

• NV

  Lincoln County, NV

  4,345 people

  87 mi WSW

Distance to Salt Lake City and the nearest big city

Salt Lake City is 212.1 miles NNE of Iron County's internal point in a straight line. The nearest place of 100,000 or more is St. George, UT (population 106,288), 59.4 miles away. The nearest place of 10,000 or more is Cedar City, UT (population 40,885), 19.4 miles away.

Iron County FIPS code

The FIPS code of Iron County is 49021: state code 49 for Utah plus county code 021. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $68,170.