Silver Valley Addition leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 85% of adults in Silver Valley Addition typically vote, above the U.S. average of about 62%. Among adults in Silver Valley Addition, ~37% vote Democratic, ~48% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Silver Valley Addition compares
Silver Valley Addition runs about 17 points more Democratic than South Dakota as a whole.
Politics vary noticeably by block within Silver Valley Addition. The northwest side is the most Republican-leaning (R+20) and the northeast side is the least Republican-leaning (R+6), a spread of about 14 points.
Why Silver Valley Addition leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Silver Valley Addition, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 79% of households in Silver Valley Addition are family households, about 12 points above the U.S. average of 67%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Silver Valley Addition, Sioux Falls, SD sits in the top quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Silver Valley Addition looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Silver Valley Addition is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 73%, about 13 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 91% of households in Silver Valley Addition own their home, compared to around 59% in nearby neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Augustana, Sioux Falls, SD D+18
- Whittier, Sioux Falls, SD D+10
- North Central Omaha, Omaha, NE D+24
- Northwest Omaha, Omaha, NE D+10
- North Omaha, Omaha, NE D+41
- Keystone, Omaha, NE D+12
- Miller Park Minne Lusa Area, Omaha, NE D+63
- Benson, Omaha, NE D+41
- East Omaha, Omaha, NE D+22
- West Omaha, Omaha, NE D+3
Neighborhoods with Similar Populations
- Forrest Hills, Augusta, GA D+29
- The Canal on Preston, Plano, TX D+8
- Brooklyn, Portland, OR D+81
- Southpointe, Fargo, ND D+5
- Forest Glen, Silver Spring, MD D+75
- Slabtown, Portland, OR D+78
- Atchison Woods, Richmond, CA D+55
- Lamberts Point, Norfolk, VA D+67
- Midtown, Anchorage, AK D+42
- Westies, Wausau, WI D+11
Sources and methodology
Precinct-level voting records used to fit the model come from South Dakota Secretary of State, Elections, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.