Irena is a Republican stronghold. About 16% of voters here vote Democratic and 84% Republican.
About 81% of adults in Irena typically vote, above the U.S. average of about 62%. Among adults in Irena, ~13% vote Democratic, ~68% Republican, and ~19% don't vote. The map below shows estimated turnout by block group.
How Irena compares
Among cities within 25 miles, Irena leans more Republican than 32 of 40 neighbors.
Irena runs about 50 points more Republican than Missouri as a whole.
Why Irena leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Irena. The lean here lands roughly where demographic data alone would predict.
High-school completion, developed land, and voter turnout
Places that combine high-school-completion-heavy adults and a rural land-use pattern tend to turn out at a higher rate, as Irena, MO does.
Why turnout in Irena looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in Irena have completed high school, about 7 points above the Missouri average of 89%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Redding, IA R+54
- Grant City, MO R+60
- Isadora, MO R+72
- Allendale, MO R+65
- Platteville, IA R+57
- Delphos, IA R+54
- Blockton, IA R+59
- Maloy, IA R+55
- Worth, MO R+66
Cities with Similar Populations
- Youngtown, ME D+17
- Kansas, VT D+6
- Sunset, AZ R+67
- Mountain View, NM R+72
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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.