Berkeley County leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 64% of adults in Berkeley County typically vote, near the U.S. average of about 62%. Among adults in Berkeley County, ~22% vote Democratic, ~42% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How Berkeley County compares
Among counties within 50 miles, Berkeley County leans more Republican than 8 of 15 neighbors.
Berkeley County runs about 9 points more Democratic than West Virginia as a whole.
Politics vary noticeably by city within Berkeley County. The northwest side is the most Republican-leaning (R+49) and the east side is the least Republican-leaning (R+23), a spread of about 27 points.
Why Berkeley County leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Berkeley County. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Berkeley County, WV sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Berkeley County looks the way it does
Turnout in Berkeley County sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Jefferson County, WV R+22
- Morgan County, WV R+56
- Washington County, MD R+18
- Winchester City, VA D+12
- Clarke County, VA R+18
- Frederick County, VA R+25
- Frederick County, MD D+10
- Fulton County, PA R+70
- Franklin County, PA R+41
- Hampshire County, WV R+62
Counties with Similar Populations
- San Juan County, NM R+26
- Jasper County, MO R+40
- Blair County, PA R+37
- Comanche County, OK R+18
- Clark County, IN R+23
- La Crosse County, WI D+8
- Saline County, AR R+41
- Morgan County, AL R+43
- Faulkner County, AR R+30
- Kennebec County, ME R+7
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Sources and methodology
Precinct-level voting records used to fit the model come from West Virginia 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.