What Is 2020 South Dakota Democratic primary

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Last updated: April 15, 2026

Quick Answer: The 2020 South Dakota Democratic primary took place on June 2, 2020, with Joe Biden winning approximately 76% of the vote and securing all 18 pledged delegates. Bernie Sanders received about 21%, and 3% went to uncommitted voters.

Key Facts

Overview

The 2020 South Dakota Democratic primary was part of the broader Democratic Party nomination process leading up to the 2020 U.S. presidential election. Unlike some states, South Dakota held a traditional primary election rather than a caucus, allowing registered Democrats to vote directly for their preferred candidate.

This primary was one of the final state contests in the Democratic nomination calendar, occurring after most major candidates had already withdrawn or secured the nomination. By June 2020, Joe Biden had effectively clinched the Democratic nomination, but the South Dakota primary still served to formally allocate delegates.

How It Works

The South Dakota Democratic primary operates under state election laws and Democratic Party rules for delegate allocation. Voters cast ballots for presidential candidates, and delegates are awarded proportionally based on the results.

Comparison at a Glance

South Dakota’s primary process can be better understood by comparing it to other states with different rules and timelines.

StatePrimary DateDelegate CountWinner (2020)Primary Type
South DakotaJune 2, 202018Joe BidenPrimary
CaliforniaMarch 3, 2020415Joe BidenPrimary
IowaFebruary 3, 202041Bernie SandersCaucus
New HampshireFebruary 11, 202024Bernie SandersPrimary
WyomingApril 4, 202014Joe BidenCaucus (mail-in)

South Dakota’s late primary date meant it had minimal impact on the overall nomination outcome, as Biden had already secured enough delegates by early April. However, it still followed standard Democratic proportional rules and provided a formal mechanism for delegate selection.

Why It Matters

While South Dakota’s primary did not alter the trajectory of the 2020 Democratic nomination, it played a role in the formal delegate selection process and reflected broader voter sentiment.

South Dakota’s 2020 Democratic primary, while not pivotal in determining the nominee, fulfilled its role in the democratic process by enabling voter input and formal delegate allocation.

Sources

  1. WikipediaCC-BY-SA-4.0

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