Montgomery County is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 79% of adults in Montgomery County typically vote, above the U.S. average of about 62%. Among adults in Montgomery County, ~17% vote Democratic, ~61% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How Montgomery County compares
Among counties within 50 miles, Montgomery County leans more Republican than 10 of 14 neighbors.
Montgomery County runs about 38 points more Republican than Missouri as a whole.
Politics vary noticeably by city within Montgomery County. The east side is the most Republican-leaning (R+68) and the northwest side is the least Republican-leaning (R+55), a spread of about 12 points.
Why Montgomery 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 Montgomery County, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In Montgomery County, about 92% of residents are non-Hispanic white, about 20 points above the U.S. average of 72%; about 18% of adults hold a bachelor's degree, about 11 points below the U.S. average of 28%.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Montgomery County, MO sits below the national average on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Montgomery County looks the way it does
Turnout in Montgomery County sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Warren County, MO R+50
- Audrain County, MO R+48
- Lincoln County, MO R+51
- Callaway County, MO R+43
- Pike County, MO R+55
- Gasconade County, MO R+58
- Osage County, MO R+70
- Franklin County, MO R+48
- Ralls County, MO R+62
- St. Charles County, MO R+14
Counties with Similar Populations
- Jefferson Davis County, MS D+6
- Okfuskee County, OK R+53
- Live Oak County, TX R+61
- Pope County, MN R+38
- Monroe County, KY R+69
- Martin County, KY R+74
- Wabash County, IL R+51
- Owen County, KY R+63
- Blanco County, TX R+53
- Watonwan County, MN R+29
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Sources and methodology
Precinct-level voting records used to fit the model come from Missouri 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.