Jennings is a Democratic stronghold. About 92% of voters here vote Democratic and 8% Republican.
About 51% of adults in Jennings typically vote, below the U.S. average of about 62%. Among adults in Jennings, ~47% vote Democratic, ~4% Republican, and ~49% don't vote. The map below shows estimated turnout by block group.
How Jennings compares
Among cities within 25 miles, Jennings leans more Democratic than 170 of 178 neighbors.
Jennings runs about 103 points more Democratic than Missouri as a whole. Missouri leans Republican overall, while Jennings is one of the few Democratic-leaning pockets.
Why Jennings 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 Jennings, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in Jennings live in densely developed areas, about 63 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 49% of adults in Jennings have never been married, above 98% of cities. Jennings runs against the grain of Missouri, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Jennings, MO sits in the top tenth nationally on this measure.
Why turnout in Jennings looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Jennings 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 42%, about 16 points below the Missouri average of 57%. Renters vote less often than owners, and about 54% of households in Jennings rent, about 29 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 43% of adults in Jennings report food insecurity, in the top fraction of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Flordell Hills, MO D+83
- Country Club Hills, MO D+80
- Moline Acres, MO D+85
- Norwood Court, MO D+82
- Northwoods, MO D+86
- Pasadena Hills, MO D+75
- Pine Lawn, MO D+85
- Normandy, MO D+75
- Pasadena Park, MO D+80
- Bellefontaine Neighbors, MO D+79
Cities with Similar Populations
- Blanchard, OK R+62
- Sandston, VA Even
- Gray, GA R+48
- Prichard, AL D+86
- Villas, FL R+13
- Fort Stockton, TX R+25
- Canutillo, TX D+7
- Groveport, OH D+4
- Solana Beach, CA D+25
- North Branch, MN R+30
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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.