Arlington Heights is a Democratic stronghold. About 82% of voters here vote Democratic and 18% Republican.
About 74% of adults in Arlington Heights typically vote, above the U.S. average of about 62%. Among adults in Arlington Heights, ~61% vote Democratic, ~13% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How Arlington Heights compares
Among neighborhoods within 5 miles, Arlington Heights leans more Democratic than 14 of 26 neighbors.
Arlington Heights runs about 38 points more Democratic than Massachusetts as a whole.
Politics vary noticeably by block within Arlington Heights. The south side is the most Democratic-leaning (D+73) and the north side is the least Democratic-leaning (D+55), a spread of about 19 points.
Why Arlington Heights leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Arlington Heights, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 71% of adults in Arlington Heights hold a bachelor's degree, about 42 points above the U.S. average of 28%.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Arlington Heights, Arlington, MA sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Arlington Heights looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Arlington Heights 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 78%, about 18 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Arlington Center, Arlington, MA D+71
- Wedgemere Historic District, Winchester, MA D+52
- Waverley Square, Belmont, MA D+62
- West Somerville, Somerville, MA D+63
- North Waltham, Waltham, MA D+33
- Cushing Square, Belmont, MA D+67
- North Cambridge, Cambridge, MA D+71
- Lakeview, Waltham, MA D+41
- Tufts, Somerville, MA D+71
- Warrendale, Waltham, MA D+38
Neighborhoods with Similar Populations
- Happy Valley, Anderson, CA R+43
- Meredith, Des Moines, IA D+17
- Burnt Bridge Creek, Vancouver, WA Even
- South Akron, Akron, OH D+39
- Eastwood Hills, Kansas City, MO D+54
- Bystrom, Modesto, CA D+15
- Dogtown, Selinsgrove, PA R+2
- Sunwood Central, Santa Ana, CA D+24
- Rio Grande, Albuquerque, NM D+40
- Fourth Ward, Charlotte, NC D+44
Sources and methodology
Precinct-level voting records used to fit the model come from Massachusetts Secretary of the Commonwealth, 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.