This data represents the 2021 Adopted Congressional districts from SB 881A

On September 27, 2021, the Legislative Assembly completed the adoption of new congressional and legislative redistricting plans for Oregon with the passage of Senate Bill 881 (SB 881) and Senate Bill 882 (SB 882). These plans were signed into law by Governor Brown and subsequently upheld by the Oregon Supreme Court. Elections using these new plans will take place in 2022 with those elected taking office in January of 2023.Note: There are some parts of counties that fall within a congressional district but do not have population in that area.Data Sources: Congressional Districts from SB 881; Counties and Population data from 2020 Census.Additional Resources:Additional PDF MapsOregon Redistricting WebsiteFind Your District Tool

Redistricting is the once-a-decade process of redrawing United State House of Representatives (Congressional) and Oregon State Senate and State House of Representatives (Legislative) district boundaries to account for changes in population. ​​On September 27, 2021 the Legislative Assembly completed the adoption of new congressional and legislative redistricting plans for Oregon with the passage of Senate Bill 881 A and Senate Bill 882. These plans were signed into law by Governor Brown and subsequently upheld by the courts. Elections using these new plans will take place in 2022 with those elected taking their seats in January of 2023.

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Congressional districts are the 435 areas from which people are elected to the U.S. House of Representatives. After the apportionment of congressional seats among the states based on census population counts, each state is responsible for establishing congressional districts for the purpose of electing representatives. Each congressional district is to be as equal in population to all other congressional districts in a state as practicable. The 118th Congress is seated from January 2023 through December 2024. In Connecticut, Illinois, and New Hampshire, the Redistricting Data Program (RDP) participant did not define the CDs to cover all of the state or state equivalent area. In these areas with no CDs defined, the code "ZZ" has been assigned, which is treated as a single CD for purposes of data presentation. The TIGER/Line shapefiles for the District of Columbia, Puerto Rico, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands) each contain a single record for the non-voting delegate district in these areas. The boundaries of all other congressional districts reflect information provided to the Census Bureau by the states by August 31, 2022.

This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) System (MTS). The MTS represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. State Legislative Districts (SLDs) are the areas from which members are elected to state legislatures. The SLDs embody the upper (senate - SLDU) and lower (house - SLDL) chambers of the state legislature. Nebraska has a unicameral legislature, and the District of Columbia has a single council, both of which the Census Bureau treats as upper-chamber legislative areas for the purpose of data presentation; there are no data by SLDL for either Nebraska or the District of Columbia. A unique three-character census code, identified by state participants, is assigned to each SLD within a state. States that had SLDL updates between the previous and current session include Georgia, Michigan, Minnesota, Montana, New York, North Carolina, North Dakota, Ohio, South Carolina, Washington, and Wisconsin. In Connecticut, Illinois, Louisiana, New Hampshire, Wisconsin, and Puerto Rico, the Redistricting Data Program (RDP) participant did not define the SLDLs to cover the entirety of the state or state equivalent area. In the areas with no SLDLs defined, the code "ZZZ" has been assigned, which is treated as a single SLDL for purposes of data presentation. There are no SLDL TIGER/Line shapefiles for the District of Columbia, Nebraska, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands). The state legislative district boundaries reflect information provided to the Census Bureau by the states by May 31, 2024.

This geographic feature data is a product of the 76th Oregon Legislative Session Redistricting process. These are the approved House districts. Every 10 years the Legislature is tasked with reassigning census units to new districts to balance the population. There are two House districts nested in one Senate district. Each Senate district is numbered by sequential House districts (Senate 1 consists of House 1 & 2).These boundaries are subject court challenge until August 1, 2011. Verify district accuracy by checking with the Oregon Secretary of State's Office or Oregon Department of Administrative Services- Geospatial Enterprise Office before conducting any legally binding analysis.

This map shows the State House Districts in Jackson County. The map document is 34 inches by 44 inches.

The 2023 cartographic boundary KMLs are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). These boundary files are specifically designed for small-scale thematic mapping. When possible, generalization is performed with the intent to maintain the hierarchical relationships among geographies and to maintain the alignment of geographies within a file set for a given year. Geographic areas may not align with the same areas from another year. Some geographies are available as nation-based files while others are available only as state-based files. Congressional districts are the 435 areas from which people are elected to the U.S. House of Representatives. After the apportionment of congressional seats among the states based on census population counts, each state is responsible for establishing congressional districts for the purpose of electing representatives. Each congressional district is to be as equal in population to all other congressional districts in a state as practicable. The 118th Congress is seated from January 2023 through December 2024. In Connecticut, Illinois, and New Hampshire, the Redistricting Data Program (RDP) participant did not define the CDs to cover all of the state or state equivalent area. In these areas with no CDs defined, the code "ZZ" has been assigned, which is treated as a single CD for purposes of data presentation. The cartographic boundary files for the District of Columbia, Puerto Rico, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands) each contain a single record for the non-voting delegate district in these areas. The generalzied boundaries of all other congressional districts are based on information provided to the Census Bureau by the states by August 31, 2022.

This geographic feature data is a product of the 76th Oregon Legislative Session Redistricting process. These are the approved House districts. Every 10 years the Legislature is tasked with reassigning census units to new districts to balance the population. There are two House districts nested in one Senate district. Each Senate district is numbered by sequential House districts (Senate 1 consists of House 1 & 2).These boundaries are subject court challenge until August 1, 2011. Verify district accuracy by checking with the Oregon Secretary of State's Office or Oregon Department of Administrative Services- Geospatial Enterprise Office before conducting any legally binding analysis.

34 x 44 PDF of Oregon House districts adopted in SB 882 in 2021.NOTE - 34 x 44 size maps have large file sizes and may take some computers awhile to fully open. If your PDF reader shows a blank white screen, zooming in should prompt the computer to refresh the page and show the map.PDF Maps:PDF Maps: Oregon Redistricting (arcgis.com)Oregon Redistricting Website:https://www.oregonlegislature.gov/redistricting/

This data layer is an element of the Oregon GIS Framework. This geographic feature data is a product of the 76th Oregon Legislative Session Redistricting process. These are the approved Senate districts. Every 10 years the Legislature is tasked with reassigning census units to new districts to balance the population. There are two House districts nested in one Senate district. Each Senate district is numbered by sequential House districts (Senate 1 consists of House 1 & 2).These boundaries are subject court challenge until August 1, 2011. Verify district accuracy by checking with the Oregon Secretary of State's Office or Oregon Department of Administrative Services- Geospatial Enterprise Office before conducting any legally binding analysis.

Analysis of ‘2010 Senate Districts’ provided by Analyst-2 (analyst-2.ai), based on source dataset retrieved from https://catalog.data.gov/dataset/a6675ef1-f621-4da2-8a7a-ac02ccc57dcc on 12 February 2022.

--- Dataset description provided by original source is as follows ---

This data layer is an element of the Oregon GIS Framework. This geographic feature data is a product of the 76th Oregon Legislative Session Redistricting process. These are the approved Senate districts. Every 10 years the Legislature is tasked with reassigning census units to new districts to balance the population. There are two House districts nested in one Senate district. Each Senate district is numbered by sequential House districts (Senate 1 consists of House 1 & 2).These boundaries are subject court challenge until August 1, 2011. Verify district accuracy by checking with the Oregon Secretary of State's Office or Oregon Department of Administrative Services- Geospatial Enterprise Office before conducting any legally binding analysis.

--- Original source retains full ownership of the source dataset ---

34 x 44 PDF of Oregon Congressional and legislative districts adopted in SB 881A and SB 882 in 2021.NOTE - 34 x 44 size maps have large file sizes and may take some computers awhile to fully open. If your PDF reader shows a blank white screen, zooming in should prompt the computer to refresh the page and show the map.PDF Maps:PDF Maps: Oregon Redistricting (arcgis.com)Oregon Redistricting Website:https://www.oregonlegislature.gov/redistricting/

Every decade following the Census, states and municipalities must redraw districts for Congress, state houses, city councils, and more. The goal of the 50-State Simulation Project is to enable researchers, practitioners, and the general public to use cutting-edge redistricting simulation analysis to evaluate enacted congressional districts. Evaluating a redistricting plan requires analysts to take into account each state’s redistricting rules and particular political geography. Comparing the partisan bias of a plan for Texas with the bias of a plan for New York, for example, is likely misleading. Comparing a state’s current plan to a past plan is also problematic because of demographic and political changes over time. Redistricting simulations generate an ensemble of alternative redistricting plans within a given state which are tailored to its redistricting rules. Unlike traditional evaluation methods, therefore, simulations are able to directly account for the state’s political geography and redistricting criteria. This dataset contains sampled districting plans and accompanying summary statistics for all 50 U.S. states.

8 1/2 x 11 PDF of Oregon Congressional and legislative districts adopted in SB 881A and SB 882 in 2021.PDF Maps:PDF Maps: Oregon Redistricting (arcgis.com)Oregon Redistricting Website:https://www.oregonlegislature.gov/redistricting/

8 1/2 x 11 PDF of Oregon House districts adopted in SB 882 in 2021.PDF Maps:PDF Maps: Oregon Redistricting (arcgis.com)Oregon Redistricting Website:https://www.oregonlegislature.gov/redistricting/

34 x 44 PDF of Oregon Congressional and legislative districts adopted in SB 882 in 2021.NOTE - 34 x 44 size maps have large file sizes and may take some computers awhile to fully open. If your PDF reader shows a blank white screen, zooming in should prompt the computer to refresh the page and show the map.PDF Maps:PDF Maps: Oregon Redistricting (arcgis.com)Oregon Redistricting Website:https://www.oregonlegislature.gov/redistricting/

34 x 44 PDF of Oregon House District 33 as adopted in SB 882 in 2021.NOTE - 34 x 44 size maps have large file sizes and may take some computers awhile to fully open. If your PDF reader shows a blank white screen, zooming in should prompt the computer to refresh the page and show the map.PDF Maps:PDF Maps: Oregon Redistricting (arcgis.com)Oregon Redistricting Website:https://www.oregonlegislature.gov/redistricting/

34 x 44 PDF of Oregon House District 2 as adopted in SB 882 in 2021.NOTE - 34 x 44 size maps have large file sizes and may take some computers awhile to fully open. If your PDF reader shows a blank white screen, zooming in should prompt the computer to refresh the page and show the map.PDF Maps:PDF Maps: Oregon Redistricting (arcgis.com)Oregon Redistricting Website:https://www.oregonlegislature.gov/redistricting/

34 x 44 PDF of Oregon House District 22 as adopted in SB 882 in 2021.NOTE - 34 x 44 size maps have large file sizes and may take some computers awhile to fully open. If your PDF reader shows a blank white screen, zooming in should prompt the computer to refresh the page and show the map.PDF Maps:PDF Maps: Oregon Redistricting (arcgis.com)Oregon Redistricting Website:https://www.oregonlegislature.gov/redistricting/