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Project Curia

Elections · South Dakota

South Dakota races

South Dakota votes on a Senate seat and its single House seat this cycle.

The delegation, district by district

2 seats on the ballot
At large. Dusty Johnson holds the seat and is not running for it. 9 candidates on file.

Tap or point at a district for the seat and who holds it.

1 Republican1 not running again

House seat, filled by the party that holds each one today.

Party of the member holding each seat now, never a margin and never a prediction. A hatched district means that member is not on the ballot for it. Boundaries as drawn for the 119th Congress.

How to vote in South Dakota

  • General electionNovember 3, 2026In 10 weeks

Register 15 days before the election.

All dates and rules

South Dakota by the numbers

907Kpeople across one district

Median household income$75K
Living below the poverty line11.9%
Without health insurance9.0%

South Dakota's single district, on the national range for each measure. Census American Community Survey 2024 five year estimates.

What this ballot costs

$9.9M in play

Of every dollar in South Dakota's federal races, 7 cents is outside groups spending on their own, not the campaigns. The Senate seat and the whole House map are on one scale.

Raised by candidatesOutside money
$5.5M raised by candidates$566K outside money
The House seat$3.8M
$3.7M raised by candidates$150K outside money

Gifts of $200 or less

$756K8%

Larger individual gifts

$4.6M50%

From PACs

$2.7M29%

Shares of what the campaigns raised themselves. The rest is party money, self funding and transfers.

Incumbents defending a seat

The sitting member on this ballot, what they have raised, and the stock trades they have disclosed.

How far the money traveled

Most of the outside money on South Dakota's races comes from groups that are spending in other states too.

Groups spending in other states too
$477K67%
Groups spending only in South Dakota
$238K33%

Groups filing here

4

The widest one reaches

13states

Independent spending filed on South Dakota's races, by whether the committee is also spending in other states this cycle. A filing records where a group spends, not where its donors live, so this is a measure of reach, never of who paid for it.

Who is spending on South Dakota

$716K outside money

The groups spending independently on South Dakota's races, by what they have filed. Open a row to see how the money was spent, supporting or opposing each party, and the interest behind the committee.

Every race on the ballot

Candidates on file with the FEC, not a certified ballot. Each row opens the full field, the money, and the outside spending for that seat.

Candidates and financing from the FEC, public domain. Census context from the American Community Survey, public domain. Dataset built 2026-08-27. Nothing here is a forecast, a grade, or a ranking of candidates.