South Dakota State Senate District 3
South Dakota · Latest: 2020
Safe Republican — shifted 4.5pp toward Democrats in 2020 — 27K residents
South Dakota State Senate District 3 is a state senate district that has a population of 26,595. In the 2020 presidential election, it voted Republican with a margin of R+23.5. Akashic Edge tracks 4 presidential elections here, dating back to 2008.
| Year | Dem % | Rep % | Margin | Swing |
|---|---|---|---|---|
| 2020* | 37.0% | 60.5% | R+23.5 | D+4.5 |
| 2016* | 32.6% | 60.6% | R+28.0 | R+21.3 |
| 2012* | 44.8% | 51.6% | R+6.7 | R+10.9 |
| 2008* | 51.1% | 46.9% | D+4.1 | — |
* Pre-2022 results projected onto current district boundaries. Actual boundaries at the time of the election may have differed.
What defines SD-SD-03?
SD-SD-03 has been won by both parties in the last 4 presidential elections (1D, 3R) — a genuine swing geography. It has a working-class, predominantly white electorate — strong Republican base territory.
Ask the Historian
Explore SD-SD-03's political evolution with the Historian
Key Insights
High-confidence patterns distilled from this geography's election history.
- Latest election (2020) was a Republican landslide with a 23.5% margin
- Won by both parties in recent history — Democrats most recently in 2008, Republicans in 2020
- Highly elastic — margins have ranged 32.1 points across recent elections, suggesting a volatile electorate
Who Lives Here
A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.
Census race profile
Major Census race and ethnicity groups shown as a share of total population.
| Group | SD-SD-03 | State | National |
|---|---|---|---|
White (Non-Hispanic) | 83.2% | 79.8% | 57.4% |
Hispanic / Latino | 5.0% | 4.8% | 19.3% |
Multiracial / Other | 3.5% | 4.2% | 4.0% |
Native American / Alaska Native | 3.4% | 7.5% | 0.9% |
Asian | 2.8% | 1.4% | 6.0% |
Black / African American | 2.0% | 2.3% | 12.2% |
Native Hawaiian / Pacific Islander | 0.1% | <0.1% | 0.2% |
Method notes
Who lives in South Dakota State Senate District 3? 26,595 residents as of the 2020 Census.
Demographics
Read this geography's profile in three layers: local, state (where available), and national baseline.
Population & electorate
Scale, voting-age share, and this geography's footprint inside the national electorate.
Total population
27K
Share of U.S. population
0.01%
Voting-age population
77.3%
Economic profile
Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.
Median household income
N/A
Poverty rate
N/A
College degree
N/A
Homeownership
N/A
Community profile
Age structure, language use, and nativity signals that explain how this geography differs from state and nation.
Median age
N/A
Age 18–29
N/A
Age 65+
N/A
Foreign born
N/A
Non-English at home
N/A
English only
N/A
Turnout in SD-SD-03
Estimated using 2020 Census voting-age population.
115.7%
+64.5pp
20,564
2008–2020
How competitive is SD-SD-03?
Safe RAvg margin: R+19.4 (last 3 elections)
2008
D+4.1
2012
R+6.7
2016
R+28.0
2020
R+23.5
32.1pp
1
R+13.5
Other South Dakota State Senate Districts
34 total| Name | Margin ↓ |
|---|---|
| SD-SD-15 | D+8.1 |
| SD-SD-10 | D+7.5 |
| SD-SD-27 | R+0.2 |
| SD-SD-32 | R+1.8 |
| SD-SD-14 | R+3.4 |
| SD-SD-12 | R+5.2 |
| SD-SD-11 | R+9.6 |
| SD-SD-07 | R+10.2 |
| SD-SD-13 | R+10.3 |
| SD-SD-26 | R+12.4 |
| SD-SD-34 | R+16.3 |
| SD-SD-17 | R+18.7 |
| SD-SD-01 | R+23.0 |
| SD-SD-09 | R+23.9 |
| SD-SD-02 | R+29.3 |
| SD-SD-31 | R+30.5 |
| SD-SD-06 | R+32.6 |
| SD-SD-35 | R+33.8 |
| SD-SD-33 | R+34.8 |
| SD-SD-18 | R+34.9 |
| SD-SD-08 | R+36.6 |
| SD-SD-05 | R+38.0 |
| SD-SD-25 | R+39.5 |
| SD-SD-22 | R+40.0 |
| SD-SD-20 | R+40.1 |
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