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2025 Legal Service Area of Utah Public Library Jurisdictions
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Source: U.S. Census Bureau. Annual Estimates of the Resident*
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Revised 12/11/2025
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Population of Legal Service Area Definition
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The number of people in the geographical area for which a public library has been established to offer services and from which (or on behalf of which) the library derives revenue, plus any areas served under contract for which the library is the primary service provider. This figure is determined by the Utah State Library Division based on the most recent U.S. Census Bureau population estimates available. If the library establishes an agreement with another city or county to serve as the primary library for their population, contact the State Data Coordinator at the Utah State Library Division to update the official legal service area document.
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Column Definitions
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US Census Population Estimate
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This is the population for a given location, per the US Census Bureau, for the most recent available year.
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Unduplicated Library Service Area Population
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This is the population that a given library serves. Unduplicated means that the population is not double-counted if, for example, the population receives library service through both their municipality and county.
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This column is broken into three sections which show populations for certified libraries, non-certified libraries, and areas with no known library service.
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Data Sources
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* Census Population Data (SUB-EST2024): https://www2.census.gov/programs-surveys/popest/datasets/2020-2024/cities/totals/sub-est2024_49.csv
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** Utah State Correctional Facility: https://corrections.utah.gov/about-us/correctional-facilties/central-utah-correctional-facility/
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Prepared by the Utah State Library, State Data Coordinator
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