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

South Dakota: sources, checks and caveats

File: SD.csv (all 66 counties). South Dakota has one at-large district. Columns: d = Democratic, r = Republican, o = all other U.S. House votes.

Sources

• 2022 (certified): OpenElections' county-level transcription of the SD Secretary of State's official 2022 general election results: https://raw.githubusercontent.com/openelections/openelections-data-sd/master/2022/20221108__sd__general__county.csv (office = "U.S. House"). The SOS canvass was not downloaded directly. The OpenElections totals match the FEC-certified totals exactly.
• 2026 (unofficial): CNN county-level JSON (labeled "ESS"): https://politics.api.cnn.io/results/county-races/2026-HG-SD-1.json (total: https://politics.api.cnn.io/results/race/2026-HG-SD-1.json). As of: 99% reporting; latest county vote timestamp 2026-11-06 18:00 UTC; extracted 2026-11-10 02:20 UTC (Nov 9, 9:20 pm ET). County rows sum exactly to the statewide total.
• FIPS codes: Census national_county2020.txt (Oglala Lakota County = 46102).

Validation

2022 matches exactly. In 2026, CNN's own statewide total equals our county sum. The 8-vote and 4-vote gaps are between the national aggregate and CNN's feed, not a missing county.

Districts without a D or R candidate

• 2022: no Democratic candidate. d22 = 0 in every county. Libertarian Collin Duprel (74,020) is in o22.
• 2026: none. Gronli (D) vs. Jackley (R), with no other candidates, so o26 = 0 (South Dakota does not count write-ins).

Caveats

• 2026 numbers are unofficial (99% reporting).
• Because there was no 2022 Democrat, a D swing from 2022 to 2026 is not meaningful for SD.

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