COUNTY · UT
Weber County, Utah
Weber County is a county in Utah with FIPS code 49057 and an estimated population of 271,926 (Census 2023), 4th largest of 29 in the state.
County facts
- Name
- Weber County
- State
- Utah
- Type
- county
- FIPS code
- 49057
- State FIPS
- 49
- Population (2023)
- 271,926
- Change since 2020
- +3.4%
- State rank
- 4 of 29
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Weber County?
Weber County, Utah has the five-digit FIPS code 49057: 49 for the state and 057 for the county.
What state is Weber County in?
Weber 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.