1.0
DCPLUS
20210821
00124100
20250409
00124100
https://www.arcgis.com/sharing/rest/content/items/70285f3b97c84fc79167fff54cb28df5/info/thumbnail/thumbnail1629504911668.png
https://www.arcgis.com/home/item.html?id=70285f3b97c84fc79167fff54cb28df5
70285f3b97c84fc79167fff54cb28df5
Feature Service
https://services.arcgis.com/P3ePLMYs2RVChkJx/arcgis/rest/services/Iowa_Census_2020_Redistricting_Blocks/FeatureServer
Iowa Census 2020 Redistricting Blocks
2021-08-21T00:12:41
2025-04-09T19:44:52
Census 2020
PL 94
PL 94-171
redistricting
decennial census
census 2020
census blocks
demographics
Census
US Census Bureau
2020
Iowa
This layer contains 2020 Decennial Census data at the block level for the state of Iowa. The attributes come from the 2020 Public Law 94-171 (P.L. 94-171) tables.
<span style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'>This layer contains block level 2020 Decennial Census redistricting data as reported by the U.S. Census Bureau </span><span style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'>for the state of Iowa. The attributes come from the 2020 Public Law 94-171 (P.L. 94-171) tables.</span><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><br /></div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><b>Data download date:</b> August 12, 2021</div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><b>Census tables:</b> P1, P2, P3, P4, H1, P5, Header</div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><b>Downloaded from:</b> <a href='https://www2.census.gov/programs-surveys/decennial/2020/data/01-Redistricting_File--PL_94-171/?' rel='nofollow ugc' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:"Avenir Next", Avenir, "Helvetica Neue", Helvetica, Arial, sans-serif; font-size:15px;' target='_blank'>Census FTP site</a></div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><div style='font-family:inherit;'><br /></div><div style='font-family:inherit;'><b>Processing Notes:</b></div><div style='font-family:inherit;'><ul><li>Data was downloaded from the U.S. Census Bureau FTP site, imported into SAS format and joined to the 2020 TIGER boundaries. Boundaries are sourced from the <a href='https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-geodatabase-file.html' rel='nofollow ugc' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:inherit;' target='_blank'>2020 TIGER/Line Geodatabases</a><span style='font-family:inherit;'>. Boundaries have been projected into Web Mercator and each attribute has been given a clear descriptive alias name. No alterations have been made to the vertices of the data.</span></li><li>Each attribute maintains it's specified name from Census, but also has a descriptive alias name and long description derived from the technical documentation provided by the Census. </li><li>For a detailed list of the attributes contained in this layer, view the Data tab and select "Fields". </li><li>The following alterations have been made to the tabular data:</li><ul><li>Joined all tables to create one wide attribute table:</li><ul><li>P1 - Race</li><li>P2 - Hispanic or Latino, and not Hispanic or Latino by Race</li><li>P3 - Race for the Population 18 Years and Over</li><li>P4 - Hispanic or Latino, and not Hispanic or Latino by Race for the Population 18 Years and Over</li><li>H1 - Occupancy Status (Housing)</li><li>P5 - Group Quarters Population by Group Quarters Type (correctional institutions, juvenile facilities, nursing facilities/skilled nursing, college/university student housing, military quarters, etc.)</li><li>Header</li></ul><li>After joining, dropped fields: FILEID, STUSAB, CHARITER, CIFSN, LOGRECNO, GEOVAR, GEOCOMP, LSADC.</li><li>GEOCOMP was renamed to GEOID and moved be the first column in the table, the original GEOID was dropped.</li><li>Placeholder fields for future legislative districts have been dropped: CD118, CD119, CD120, CD121, SLDU22, SLDU24, SLDU26, SLDU28, SLDL22, SLDL24 SLDL26, SLDL28.</li><li>P0020001 was dropped, as it is duplicative of P0010001. Similarly, P0040001 was dropped, as it is duplicative of P0030001.</li><li>In addition to calculated fields, County_Name and State_Name were added.</li><li>The following calculated fields have been added (see long field descriptions in the Data tab for formulas used): </li><ul><li>PCT_P0030001: Percent of Population 18 Years and Over</li><li>PCT_P0020002: Percent Hispanic or Latino</li><li>PCT_P0020005: Percent White alone, not Hispanic or Latino</li><li>PCT_P0020006: Percent Black or African American alone, not Hispanic or Latino</li><li>PCT_P0020007: Percent American Indian and Alaska Native alone, not Hispanic or Latino</li><li>PCT_P0020008: Percent Asian alone, Not Hispanic or Latino</li><li>PCT_P0020009: Percent Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino</li><li>PCT_P0020010: Percent Some Other Race alone, not Hispanic or Latino</li><li>PCT_P0020011: Percent Population of Two or More Races, not Hispanic or Latino</li><li>PCT_H0010002: Percent of Housing Units that are Occupied<br /></li><li>PCT_H0010003: Percent of Housing Units that are Vacant</li></ul><li>Please note these percentages might look strange at the individual block level, since this data has been protected using differential privacy.*</li></ul></ul></div><div style='font-family:inherit;'><font size='3' style='font-family:inherit;'>*To protect the privacy and confidentiality of respondents, data has been protected using </font><a href='https://www.census.gov/programs-surveys/decennial-census/decade/2020/planning-management/process/disclosure-avoidance.html' rel='nofollow ugc' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:inherit;' target='_blank'>differential privacy techniques</a> by the U.S. Census Bureau.<font size='3' style='font-family:inherit;'> This means that some individual blocks will have values that are inconsistent or improbable. However, when aggregated up, these issues become minimized. </font><font style='font-family:inherit;'>T</font>he pop-up on this layer uses Arcade to display aggregated values for the surrounding area rather than values for the block itself.</div><div style='font-family:inherit;'><br /></div></div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'>Additional links:</div><div style='font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><ul><li><a href='https://www.census.gov/en.html' rel='nofollow ugc' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:inherit;' target='_blank'>U.S. Census Bureau</a></li><li><a href='https://www.census.gov/programs-surveys/decennial-census/decade.2020.html' rel='nofollow ugc' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:inherit;' target='_blank'>U.S. Census Bureau Decennial Census</a><br /></li><li><a href='https://www.census.gov/programs-surveys/decennial-census/decade/2020/about.html' rel='nofollow ugc' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:inherit;' target='_blank'>About the 2020 Census</a></li><li><a href='https://www.census.gov/programs-surveys/decennial-census/decade/2020/2020-census-main.html' rel='nofollow ugc' target='_blank'>2020 Census</a><br /></li><li><a href='https://www.census.gov/programs-surveys/decennial-census/decade/2020/planning-management/process/data-quality.html' rel='nofollow ugc' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:inherit;' target='_blank'>2020 Census data quality</a></li><li><a href='https://www.census.gov/programs-surveys/decennial-census/about/rdo.html' rel='nofollow ugc' style='color:rgb(0, 121, 193); text-decoration-line:none; font-family:inherit;' target='_blank'>Decennial Census P.L. 94-171 Redistricting Data Program</a></li></ul></div>
Header, P1, P2, P3, P4, H1, and P5 Tables from U.S. Census Bureau's 2020 Public Law 94-171 files.
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
70285f3b97c84fc79167fff54cb28df5
https://services.arcgis.com/P3ePLMYs2RVChkJx/arcgis/rest/services/Iowa_Census_2020_Redistricting_Blocks/FeatureServer
Feature Service
EPSG