Where the map comes from
District lines
U.S. Census Bureau 2024 cartographic boundary files (1:500,000): cb_2024_us_cd119_500k (Michigan features only) for the 13 U.S. House districts, cb_2024_26_sldu_500k for the 38 state Senate districts, cb_2024_26_sldl_500k for the 110 state House districts, cb_2024_us_county_500k for counties and cb_2024_26_place_500k for city and town limits. These show the Michigan Independent Citizens Redistricting Commission's state Senate and House maps (Detroit-area districts redrawn in 2024 after a federal court ruling). District files are converted without simplification; county outlines and city limits are simplified for display. Near a boundary line they can be off by a block or more.
Files
cb_2024_26_sldu_500k.zip: www2.census.gov, retrieved 2026-10-13cb_2024_26_sldl_500k.zip: www2.census.gov, retrieved 2026-10-13cb_2024_26_place_500k.zip: www2.census.gov, retrieved 2026-10-13mi.csv: data.openstates.org, retrieved 2026-10-132026-November-ballot-questions.pdf: michigan.gov (Department of State), retrieved 2026-10-13mi-boe-candidate-listing-GEN-2026.html: Michigan Bureau of Elections, retrieved 2026-10-13
Census files: www2.census.gov/geo/tiger/GENZ2024/shp/.
Software
Leaflet 1.9.4 (BSD-2-Clause), served from this site. Optional street map © OpenStreetMap contributors; optional address search by OpenStreetMap Nominatim.