COUNTY · UT
San Juan County, Utah
San Juan County is a county in Utah with FIPS code 49037 and an estimated population of 14,358 (Census 2023), 17th largest of 29 in the state.
County facts
- Name
- San Juan County
- State
- Utah
- Type
- county
- FIPS code
- 49037
- State FIPS
- 49
- Population (2023)
- 14,358
- Change since 2020
- -1.1%
- State rank
- 17 of 29
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for San Juan County?
San Juan County, Utah has the five-digit FIPS code 49037: 49 for the state and 037 for the county.
What state is San Juan County in?
San Juan County is in Utah.
How do I know if an address is in this county?
Use the address lookup. ZIP codes and city names can cross county lines, so an address is the reliable check.
Sources: U.S. Census Bureau geographic reference files; Census Bureau Population Estimates, Vintage 2023. Last reviewed 2026-10-27.