HB 379 Utah House · 2025 General Session

Population Data Amendments

HB 379 updates Utah's population data procedures to standardize how local governments and state entities use population estimates. It requires local governments to use the Utah Population Committee's annual sub-county population estimates for planning and legal purposes, only turning to U.S. Census data if the committee's estimate isn't available. The bill also mandates that government agencies share necessary data with the committee to support accurate population reporting. This affects all municipalities, counties, and state agencies that rely on population data for redistricting, funding, or legal decisions. The changes apply to multiple state codes governing local government operations and planning.
Bill status signed all 5 stages cleared
Introduction
Jan 2025
Committee Review
Mar 2025
House Passage
Mar 2025
Senate Passage
Mar 2025
Signed into Law
Mar 2025
Introduced Jan 31, 2025 Signed Mar 26, 2025
Maddy AI version diff · 2 comparisons

What changed between versions

Substitute #1 Enrolled · 4 edits · Mar 26, 2025
MODERATE
The Enrolled version reverses the priority order for population data sources across multiple sections, making Utah Population Committee (UPC) estimates the primary source and US Census Bureau data the fallback (previously census was primary). It also introduces a new 'adjusted sub-county population estimate' mechanism for tax distribution calculations and adds a federal law carve-out to several provisions. These changes affect how local government tax revenue is distributed, county classification, and program eligibility.
REQUIREMENT

In Sections 10-9a-302, 17-27a-302, 17-50-502, and 26B-3-301, the priority for determining population figures was reversed: Utah Population Committee estimates are now the primary source, with US Census Bureau data as the fallback (previously census was primary and UPC was the backup).

FISCAL

In Sections 59-12-205, 59-12-2219, and 59-12-2220, population figures used for tax revenue distribution among local governments now come primarily from the Utah Population Committee, with a new 'adjusted sub-county population estimate' (defined in Section 63C-20-104) serving as an intermediate fallback when UPC estimates are not available for each individual municipality or unincorporated area.

DEFINITION

The phrase 'to the extent not otherwise required by federal law' was added to several population determination provisions (Sections 59-12-205, 59-12-401, 59-12-402, 59-12-405, 59-12-603, 59-12-1102, 59-12-2219, and 59-12-2220), creating a carve-out that preserves federal data requirements where applicable.

TECHNICAL

Formatting changes throughout: effective date notations changed from parenthetical format '(Effective 05/07/25)' to inline format 'Effective 05/07/25', and the affected sections list in the header was reformatted without parentheses around dates.

Floor votes

How they voted

This bill passed the Senate by voice vote (no roll call recorded).
Full legislative history

Actions timeline

Total actions
35
Key actions
7
Committee
5
Mar 26, 2025
Signed into law
Governor Signed
executive
Mar 6, 2025
Legislature · Passed
House/ signed by Speaker/ sent for enrolling
legislature
Mar 6, 2025
Lower · Passed
Senate/ signed by President/ returned to House
lower
Mar 5, 2025
Upper · Passed
Senate/ committee report favorable
upper
Mar 5, 2025
Upper · Passed
Senate Comm - Favorable Recommendation
upper
Feb 28, 2025
Committee
Senate/ to standing committee
upper
Feb 27, 2025
Introduced
Senate/ 1st reading (Introduced)
upper
Feb 27, 2025
Upper · Passed
House/ passed 3rd reading
upper
Feb 25, 2025
Lower · Passed
House Comm - Favorable Recommendation
lower
Feb 7, 2025
Committee
House/ to standing committee
lower
Jan 31, 2025
Introduced
House/ 1st reading (Introduced)
lower
1 primary · 1 co-sponsor

Sponsors