Rosamond is a Republican stronghold. About 20% of voters here vote Democratic and 80% Republican.
About 62% of adults in Rosamond typically vote, near the U.S. average of about 62%. Among adults in Rosamond, ~12% vote Democratic, ~49% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How Rosamond compares
Among cities within 25 miles, Rosamond leans more Republican than 33 of 56 neighbors.
Rosamond runs about 70 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Rosamond is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Rosamond. The south side is the most Republican-leaning (R+63) and the west side is the least Republican-leaning (R+52), a spread of about 11 points.
Why Rosamond 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 Rosamond, not a ranked or complete list of what matters most.
Rosamond votes against the grain of Illinois. Illinois leans Democratic overall, while Rosamond runs about 70 points more Republican.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Rosamond, IL 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 Rosamond looks the way it does
Areas with limited routine healthcare access turn out at lower rates. Rosamond is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Ohlman, IL R+64
- Millersville, IL R+56
- Pana, IL R+41
- Owaneco, IL R+54
- Oconee, IL R+65
- Nokomis, IL R+56
- Wenonah, IL R+61
- Coalton, IL R+58
- Tower Hill, IL R+63
- Assumption, IL R+56
Cities with Similar Populations
- Vannatta, TN R+66
- Piney Ridge, NC R+30
- Shirley, TN R+70
- Meredithville, VA D+4
- Sherwood, TX R+77
- Aaron, KY R+74
- Bartley, WV R+74
- Zeba, MI R+19
- McGregor, GA R+42
- Orchard, ID R+54
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Sources and methodology
Precinct-level voting records used to fit the model come from Illinois 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.