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

Colorado: sources, checks and caveats

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File: CO.csv (64 counties). Columns: d = Democratic (DEM), r = Republican (REP), o = all other U.S. House votes (Libertarian, Unity, American Constitution, Center, Approval Voting, Forward, and so on, plus write-ins where they were reported). Votes are summed over every "Representative to the 118th/120th United States Congress - District n" contest in the county.

Sources

2022 (certified): Colorado SOS official abstract of votes cast, U.S. Representatives, https://www.coloradosos.gov/pubs/elections/Results/Abstract/2022/general/usRepresentatives.html (county by county for each district, write-ins included). Cross-check: the Clarity statewide detail XML https://results.enr.clarityelections.com/CO/115903/316199/reports/detailxml.zip (snapshot 12/12/2022) agrees except for 1 vote (Qualteri, Denver: 48,868 in Clarity against 48,869 in the abstract). Clarity has no write-ins.
2026 (unofficial): Colorado SOS Clarity ENR, statewide detail XML https://results.enr.clarityelections.com/CO/127407/386462/reports/detailxml.zip (county breakdown for each contest). As of: XML <Timestamp> 11/9/2026 5:18:44 PM MST (7:18 pm ET), Last-Modified Tue 10 Nov 2026 00:18:45 GMT.
FIPS: Census national_county2020.txt.

Validation (sum of county rows vs statewide totals)

Year	Column	Our sum	Reference	Diff
2022	D	1,365,427	1,365,427 (FEC)	0
2022	R	1,050,960	1,050,960	0
2022	Other	55,758	55,757	+1
2026	D	1,592,406	1,588,704 (Nov 9 6:10 pm ET aggregate)	+3,702
2026	R	961,615	959,686	+1,929
2026	Other	96,770	(not reported)	—

2022 other is +1. The SOS abstract shows Kristin Skowronski (CD3 write-in) with 72 votes, and the FEC lists 71. D and R match exactly. The 2026 gap is explained by timing: our snapshot (7:18 pm ET) is newer than the national aggregate (6:10 pm ET), and counties are still adding ballots.

Districts without a D or R candidate

2022: none. All 8 districts had a DEM and a REP nominee.
2026: none. All 8 districts had a DEM and a REP nominee.

Caveats

2026 numbers are unofficial. Colorado counts mail ballots, cures and UOCAVA ballots after election day. Clarity's "precincts reported" figures do not mean much for an all-mail state.
2026 o leaves out write-ins, because the Clarity feed does not report write-in candidates. 2022 o includes them (423 votes statewide).
Redistricting: both years use the 2021 commission map, so the district lines are the same. District numbers and incumbents changed between years (for example, Boebert ran in CD4 in 2026).

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