Lane, SD Political Map | Democrat & Republican Areas in Lane

Lane is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.

 
Lane, SD block-group political-lean map
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About 65% of adults in Lane typically vote, near the U.S. average of about 62%. Among adults in Lane, ~14% vote Democratic, ~51% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.

Lane, SD block-group voter-turnout map
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How Lane compares

Among cities within 25 miles, Lane leans more Republican than 3 of 13 neighbors.

Lane runs about 26 points more Republican than South Dakota as a whole.

Why Lane leans the way it does

This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Lane, not a ranked or complete list of what matters most.

Areas with many family households vote Republican. About 79% of households in Lane are family households, about 13 points above the U.S. average of 67%. Rural areas vote Republican, and Lane sits in the bottom quarter on density (about 4%, below 89% of cities).

Population density and Republican lean

Places with low population density tend to lean Republican; Lane, SD sits in the bottom tenth nationally on this measure.

Why turnout in Lane looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Lane 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 69%, about 9 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Lane have completed high school, above 81% of cities. Learn more about the findings and methodology on the political spectrum map.

Cities with Similar Populations

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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.