Hudson leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 88% of adults in Hudson typically vote, above the U.S. average of about 62%. Among adults in Hudson, ~30% vote Democratic, ~58% Republican, and ~12% don't vote. The map below shows estimated turnout by block group.
How Hudson compares
Among cities within 25 miles, Hudson leans more Republican than 12 of 45 neighbors.
Hudson runs about 19 points more Republican than Iowa as a whole.
Why Hudson 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 Hudson, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 83% of households in Hudson are family households, about 16 points above the U.S. average of 67%.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Hudson, IA sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Hudson looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Hudson is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 76%, about 16 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 90% of households in Hudson own their home, about 15 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 98% of adults in Hudson have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Orange, IA R+32
- Zaneta, IA R+34
- Voorhies, IA R+42
- Waterloo, IA D+11
- Cedar Falls, IA D+4
- Dike, IA R+35
- Reinbeck, IA R+37
- Evansdale, IA R+10
- Raymar, IA R+29
- Buckingham, IA R+42
Cities with Similar Populations
- Belle Meade, TN R+14
- Lyons, MI R+41
- Lowry Crossing, TX R+21
- Leesburg, AL R+80
- Reidville, SC R+43
- River Bend, NC R+25
- Racine, OH R+64
- Ackerman, MS R+11
- Pulaski, PA R+43
- Shell Lake, WI R+34
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Sources and methodology
Precinct-level voting records used to fit the model come from Iowa 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.