Eldersburg leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.
About 90% of adults in Eldersburg typically vote, above the U.S. average of about 62%. Among adults in Eldersburg, ~40% vote Democratic, ~50% Republican, and ~10% don't vote. The map below shows estimated turnout by block group.
How Eldersburg compares
Among cities within 25 miles, Eldersburg leans more Republican than 96 of 119 neighbors.
Eldersburg runs about 41 points more Republican than Maryland as a whole. Maryland leans Democratic overall, while Eldersburg is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Eldersburg. The south side runs the most Democratic (D+3) and the northwest side runs the most Republican (R+25), a spread of about 28 points.
Why Eldersburg 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 Eldersburg, not a ranked or complete list of what matters most.
Eldersburg votes Republican even though it is densely developed (about 53%, modestly above the Maryland average of 43%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 80% of households in Eldersburg are family households, above 89% of cities. Eldersburg runs against the grain of Maryland, a Republican-leaning pocket in a Democratic-leaning state.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as Eldersburg, MD does.
Why turnout in Eldersburg looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Eldersburg 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 71%, about 11 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Eldersburg have completed high school, above 85% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Sykesville, MD R+10
- Marriottsville, MD D+5
- Cooksville, MD Even
- Finksburg, MD R+26
- Woodstock, MD D+40
- Woodbine, MD R+10
- Reisterstown, MD D+28
- Randallstown, MD D+76
- Owings Mills, MD D+58
Cities with Similar Populations
- Temple Terrace, FL D+20
- Corsicana, TX R+16
- Danvers, MA D+12
- Crosby, TX R+50
- Jenison, MI R+23
- Chicago Heights, IL D+50
- Rosharon, TX D+15
- North Wales, PA D+17
- Wilmette, IL D+50
- Centereach, NY R+19
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Sources and methodology
Precinct-level voting records used to fit the model come from Maryland State Board of 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.