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The 2020 Census Will Shift LA County's Congressional District Lines

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Redistricting analysts predict that based on the 2020 Census results, California could lose a seat in Congress for the first time in the state’s history.

It’ll be up to the Census Bureau to make that determination, but the California Citizens Redistricting Commission would get to choose which district to cut. Based on a study from Claremont McKenna College, they would likely pick one from within Los Angeles county—one of the slowest growing regions in the state.

But that decision doesn’t only come down to how many people live in each district—it also matters who lives there, because cutting up a constituency could change the voices that get represented in government.

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Based on recent population estimates, the San Gabriel Valley is one region looking particularly vulnerable to redistricting. Here’s what’s at stake when those lines get redrawn.