Oak Grove leans slightly Republican by roughly 14 points: about 43% of voters vote Democratic and 57% Republican.
About 51% of adults in Oak Grove typically vote, below the U.S. average of about 62%. Among adults in Oak Grove, ~22% vote Democratic, ~29% Republican, and ~49% don't vote. The map below shows estimated turnout by block group.
How Oak Grove compares
Among cities within 25 miles, Oak Grove leans more Republican than 3 of 61 neighbors.
Oak Grove runs about 16 points more Democratic than Kentucky as a whole.
Politics vary noticeably by neighborhood within Oak Grove. The northeast side is the most split-leaning (R+56) and the southwest side is the least split-leaning (Even), a spread of about 56 points.
Why Oak 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 Oak Grove, not a ranked or complete list of what matters most.
Oak Grove votes Republican even though it is densely developed (about 44%, well above the Kentucky average of 18%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Low college attainment predicts Republican voting, and Oak Grove sits in the bottom quarter (about 12%, below 89% of cities).
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Oak Grove, KY sits in the bottom tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Oak Grove looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Oak Grove is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 48%, about 6 points below the Kentucky average of 54%. Renters vote less often than owners, and about 61% of households in Oak Grove rent, compared to around 40% in nearby cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Fort Campbell North, KY R+5
- Fort Campbell, TN R+26
- St. Elmo, KY R+59
- Howel, KY R+63
- Clarksville, TN R+11
- Trenton, KY R+57
- Pembroke, KY R+50
- Hampton Station, TN R+30
- Woodlawn, TN R+62
- Church Hill, KY R+51
Cities with Similar Populations
- Bee Cave, TX D+14
- Canton, TX R+71
- Laurel, FL R+20
- Pigeon Forge, TN R+52
- Brentwood, MO D+31
- Hillsboro, TX R+30
- Perry, IA R+6
- Pomona, NJ D+7
- Estes Park, CO D+10
- Roosevelt, UT R+72
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Kentucky 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.