Broadwater County is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About 86% of adults in Broadwater County typically vote, above the U.S. average of about 62%. Among adults in Broadwater County, ~20% vote Democratic, ~66% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How Broadwater County compares
Among counties within 50 miles, Broadwater County leans more Republican than 3 of 4 neighbors.
Broadwater County runs about 34 points more Republican than Montana as a whole.
Why Broadwater 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 Broadwater County, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 72% of households in Broadwater County are family households, about 6 points above the U.S. average of 67%.
Population density and Republican lean
Places with low population density tend to lean Republican; Broadwater County, MT sits in the bottom quarter nationally on this measure.
Why turnout in Broadwater County looks the way it does
Homeowners vote more often than renters. About 88% of households in Broadwater County own their home, about 12 points above the Montana average of 77%. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Jefferson County, MT R+38
- Lewis and Clark County, MT R+7
- Meagher County, MT R+58
- Gallatin County, MT D+6
- Silver Bow County, MT Even
- Powell County, MT R+48
- Madison County, MT R+46
- Park County, MT R+14
- Deer Lodge County, MT R+18
- Wheatland County, MT R+66
Counties with Similar Populations
- Thurston County, NE D+23
- Charles City County, VA D+8
- Tucker County, WV R+50
- Clinch County, GA R+51
- Monroe County, AR R+33
- Refugio County, TX R+36
- Southeast Fairbanks Census Area, AK R+39
- Huerfano County, CO R+7
- Burt County, NE R+55
- Galax City, VA R+38
Sources and methodology
Precinct-level voting records used to fit the model come from Montana 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.