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The congressional districts are mapped from the 2020 US Census Bureau blocks. They have been projected to Montana State Plane NAD83 (2011).<\/SPAN><\/P>

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. <\/SPAN><\/P>

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