Three cycles of donors, every county.

Federal money is the FEC's bulk file of itemized individual gifts for each cycle. Each candidate's own committees count, plus every ActBlue and WinRed line that names the campaign it was earmarked for; the campaign's copy of the same earmarked gift is dropped so nothing counts twice. Gifts are banded by size, refunds come off, and each ZIP code is split among the counties it touches by land area. The comparison window is January 1 of the year before the election through September 30 of the election year, so 2022 and 2024 line up with 2026 at the same point. Donations are counted per 1,000 adults, from the Census adult population.

Governor money comes from each state's campaign finance office, since governors do not file with the FEC. Where a state publishes a bulk file it is read whole; elsewhere each nominee's contributions were exported from the state's search. State files differ in what they record, so a state whose file does not say who gave counts every itemized gift. States are added as their files come in.

Cycles on the map now: 2026. The others appear when their pulls finish. Until the 2026 pull is rerun with the same method, 2026 shows the October 20 donor map, which counts donations but not the party split by county. Connecticut's 2026 figures there are by planning region, which the county map does not draw. Each race's donor coalition