Comm. 013 - 2021-09-22 (testimony) Common Cause Hawaii: items on September 23, 2021 agenda

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After corrections are made, run all the corrected addresses through the geocoder again, and repeat this process for as many iterations as practicable. States handle unusable addresses differently — some require those individuals be counted where they are incarcerated; others, like California, assign the individual to a randomly determined census block within the smallest geographical area that can be determined from the information provided. NOTE: Do not let the perfect be the enemy of good! Every person counted at home is one that is not counted in the wrong place. States should make their best effort to correct and geocode as many of the addresses provided, but no state will get 100% accuracy. As a rough guide, a 70% success rate would be considered a good outcome in most states going through the process for the first time. • Subtract the correctional population reported by the census in the group quarters tables of the redistricting data, Subtract the • Some states may require or have discretion to subtract federal' prison populations, relevant prison • Some states, like Maryland, require that individuals without an address be counted populations at the facility address. In that case, take any unmatched addresses from Step Two, from census above, and add those populations back into the census block containing the blocks where I facility, prisons are located • The state will have the data set that best counts incarcerated people at home and minimizes padding of districts with prisons once it completes Steps 1 thru 3: people Use adjusted with geocodable addresses have been counted in their home census blocks; data for correctional group quarters counts have been subtracted from the census blocks redistricting where prisons are located; and people without a last known, unusable or out-of- state address have either been subtracted or placed back in the census block where they are incarcerated, depending on what is permitted or required under state law. iAdditional resources: Quick reference chart for state -specific legislation: https://www. prisonei-saftliecensus.oi-g/models/cliai't.litm l Quick reference on state options for addressing prison gerrymandering: https//www.prisonersofthecensus.org/factsheets/national/state solhrtions.pdf A detailed overview of the reallocation process used by New York and Maryland in 2010. https://www.detiios.org/policy-briefs/implementing-reform-how-maryiand-new-York-ended- prison-gerrymandering For questions and more information on prison gerrymandering, visit https:// www,prisonersofthecensus.org For questions and more information about redistricting, visit https://wwvv,commoncause-org/our-work/gerrymandering-and- representation/gerrymandering-redistricting/