Anne Arundel County leans Democratic by roughly 16 points: about 58% of voters vote Democratic and 42% Republican.
About 78% of adults in Anne Arundel County typically vote, above the U.S. average of about 62%. Among adults in Anne Arundel County, ~45% vote Democratic, ~33% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How Anne Arundel County compares
Among counties within 50 miles, Anne Arundel County leans more Democratic than 9 of 23 neighbors.
Anne Arundel County runs about 12 points more Republican than Maryland as a whole.
Politics vary noticeably by city within Anne Arundel County. The west side runs the most Democratic (D+38) and the northeast side runs the most Republican (R+20), a spread of about 58 points.
Why Anne Arundel County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Anne Arundel County, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 46% of adults in Anne Arundel County hold a bachelor's degree, about 17 points above the U.S. average of 28%. Dense areas vote Democratic, and Anne Arundel County sits in the top fifth on density (about 71%, above 91% of counties).
Population density and Democratic lean
Places with high population density tend to lean Democratic; Anne Arundel County, MD sits in the top tenth nationally on this measure.
Why turnout in Anne Arundel County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Anne Arundel County 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 68%, about 8 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 94% of adults in Anne Arundel County have completed high school, above 82% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Howard County, MD D+40
- Baltimore City, MD D+72
- Prince George's County, MD D+71
- Baltimore County, MD D+28
- Queen Anne's County, MD R+27
- District of Columbia, DC D+80
- Montgomery County, MD D+52
- Arlington County, VA D+57
- Alexandria City, VA D+55
- Kent County, MD Even
Counties with Similar Populations
- Baltimore City, MD D+72
- Douglas County, NE D+17
- Jefferson County, CO D+18
- Bristol County, MA Even
- Delaware County, PA D+27
- Washington County, OR D+32
- Union County, NJ D+26
- New Castle County, DE D+33
- Brevard County, FL R+19
- Williamson County, TX Even
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.