LA HB487

Redraws Louisiana's 39 Senate district boundaries based on 2020 federal census data, replacing the current district map established under R.S. 24:35.1

District populations range from 113,512 to 125,368, with an overall deviation range of 9.92% from the ideal population of 119,429 per district

New district boundaries become effective upon governor's signature for qualifying and conducting the 2027 Senate elections, with full implementation at 10:00 a.m. on January 10, 2028

Preserves current officeholders' terms by specifying that appointments or elections based on Senate districts after January 10, 2028 will use the new district configurations

Precinct boundaries referenced are based on the "2025 Precinct Shapefiles (1-16-2025)" file, incorporating parish governing authority changes submitted through January 16, 2025