Source notes · U.S. House by county, 2022 vs 2026

Michigan: sources, checks and caveats

File: MI.csv (83 counties). Columns: d = Democratic, r = Republican, o = all other U.S. House votes (Libertarian, Working Class, U.S. Taxpayers, Green, Natural Law, no-party-affiliation candidates, and certified write-ins). Votes are summed over every "nth District Representative in Congress" contest in the county; Michigan's county files are already split by county × district, so counties in more than one district (e.g. Oakland, Wayne, Macomb, Kent, Genesee) are summed across their districts. FIPS = 26000 + (2 × Michigan county code − 1); MI county codes 1–83 are alphabetical and map to FIPS 26001–26165.

Sources

Michigan Department of State (Bureau of Elections), MVIC "Election Results" county-results data download (the "Data → Election Data" link on the results page). The site is behind a Cloudflare browser check, so the files were fetched with page JavaScript in a browser tab, not curl. - 2022 (certified): results page https://mvic.sos.state.mi.us/votehistory/Index?type=C&electionDate=11-8-2022 ; data file https://mvic.sos.state.mi.us/VoteHistory/GetElectionResultFile?electionId=691 (2022STATE_GENERAL_MI_CENR_BY_COUNTY.txt, tab-delimited, one row per county × district × candidate). - 2026 (unofficial): results page https://mvic.sos.state.mi.us/votehistory/Index?type=C&electionDate=11-3-2026 ; data file https://mvic.sos.state.mi.us/VoteHistory/GetElectionResultFile?electionId=707 (2026STATE_GENERAL_MI_CENR_BY_COUNTY.txt). As of: results page header "STATE GENERAL, UNOFFICIAL — Updated: 11/9/2026 4:57:10 PM (Michigan time, ET) — Counties: 83/83"; downloaded 2026-11-09 ~9:30 pm ET. The per-district totals shown on that page sum exactly to our state totals (D 2,530,065; R 2,105,546). - (The older ENR host mielections.us did not respond — connection timeouts — so it was not used.)

Validation (sum of county rows vs statewide totals)

2022 matches FEC exactly in all three columns. 2026 is ~0.1% below the national aggregate for both parties. Our numbers equal the Michigan Department of State's own statewide district totals (page updated 4:57 pm, Nov 9), so this isn't a missing district or county: all 13 districts and all 83 counties are present, with no duplicate rows. The national aggregate was probably built from county-clerk reports newer than the state's 4:57 pm compilation. Michigan counties post their unofficial results first, and the state collects them from there.

Districts without a D or R candidate

• 2022: none. All 13 districts had both a Democratic and a Republican nominee.
• 2026: none. All 13 districts had both a Democratic and a Republican nominee.

Caveats

• 2026 numbers are unofficial (county canvasses are still in progress), and the state file trails some county sites.
• 2022 o includes 11 certified write-in votes in total (e.g. MI-06: 1, MI-13: 5). In 2022, MI-11 (all in Oakland) had only D and R candidates. Washtenaw's 2022 o = 0 because its only district, MI-06, had no third-party candidate. That is a real zero, not missing data.
• In the 2022 file, single-county districts are labeled "... Files In OAKLAND County" / "... Files In WAYNE County" (MI-11, MI-13). These are the only rows for those districts, not duplicates.
• 2026 o includes no-party-affiliation candidates (MI-01 Featherly, MI-11 Kumar). Declared write-ins in the 2026 file show 0 votes so far.
• County names follow Census spelling (the 2022 file abbreviates "GD. TRAVERSE").

These notes record where each number came from and how it was checked. 2026 figures are unofficial. See the methodology and disclaimer.