Mountain Grove is a Republican stronghold. About 25% of voters here vote Democratic and 75% Republican.
About 78% of adults in Mountain Grove typically vote, above the U.S. average of about 62%. Among adults in Mountain Grove, ~19% vote Democratic, ~59% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How Mountain Grove compares
Among cities within 25 miles, Mountain Grove leans more Republican than 144 of 188 neighbors.
Mountain Grove runs about 49 points more Republican than Pennsylvania as a whole.
Why Mountain Grove 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 Mountain Grove, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 78% of households in Mountain Grove are family households, about 11 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; Mountain Grove, PA 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 Mountain Grove looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Mountain Grove 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%. Homeowners vote more often than renters, and about 90% of households in Mountain Grove own their home, above 80% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Rock Glen, PA R+47
- Hetlerville, PA R+51
- Nuremberg, PA R+44
- Nescopeck, PA R+42
- Weston, PA R+38
- Briar Creek, PA R+40
- Zion Grove, PA R+49
- Mifflinville, PA R+35
- Berwick, PA R+35
- Shumans, PA R+53
Cities with Similar Populations
- Sheldons Grove, IL R+56
- Deep River, IN R+31
- Dedham, ME R+14
- Zingara, GA R+41
- Kimball, WI R+31
- Kiousville, OH R+49
- Kent, OR R+54
- Bruin, KY R+61
- Wananish, NC R+18
- Gillis Springs, GA R+78
Sources and methodology
Precinct-level voting records used to fit the model come from Pennsylvania Department of State, Bureau 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.