Analyzing Pennsylvania’s Adjusted Redistricting Data

Overview

Pennsylvania uses adjusted (or modified) data for state legislative redistricting.

• 13,002,700 total population in the original PL file
• 13,002,700 total population in the adjusted PL file
• 0 total population difference between the two

Even in states where where the total population is unchanged, the distribution of population within the state can be affected.

To give you a sense for how these population shifts affect Pennsylvania’s redistricting, the average district sizes in Pennsylvania are:

• 64,052 people per state House district
• 260,054 people per state Senate district

The dataset used to create this report is the official redistricting dataset.

County Level Analysis

See the appendix for a detailed breakdown of county level population changes.

Official Language

The official language for Pennsylvania’s adjustment is:

The 2021 adjusted U.S. Census population data corrects issues in the original 2020 data received from the Census Bureau, such as voting district code and name discrepancies, municipality name discrepancies, precinct changes which may have been made after the U.S. Census’ Phase 2 program, and split block issues. This data also includes adjustments to the population to account for prisoner reallocation.