Brookside leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 59% of adults in Brookside typically vote, near the U.S. average of about 62%. Among adults in Brookside, ~36% vote Democratic, ~22% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How Brookside compares
Among cities within 25 miles, Brookside leans more Democratic than 121 of 142 neighbors.
Brookside runs about 9 points more Democratic than Delaware as a whole.
Politics vary noticeably by neighborhood within Brookside. The northwest side is the most Democratic-leaning (D+40) and the southwest side is the least Democratic-leaning (D+14), a spread of about 27 points.
Why Brookside 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 Brookside, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 83% of residents in Brookside live in densely developed areas, about 46 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 42% of adults in Brookside have never been married, above 95% of cities.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Brookside, DE sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Brookside looks the way it does
Renters vote less often than owners. About 39% of households in Brookside rent, about 14 points above the U.S. average of 25%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Newark, DE D+34
- Bear, DE D+32
- Glasgow, DE D+24
- New Castle, DE D+48
- Newport, DE D+22
- Wilmington Manor, DE D+31
- Elkton, MD R+17
- Colonial Acres, MD R+11
- Hockessin, DE D+17
Cities with Similar Populations
- Hazel Park, MI D+18
- Hooksett, NH D+6
- Malibu, CA D+27
- Marshall, MO R+25
- Whiteville, NC R+23
- Cherry Hill Mall, NJ D+26
- Dayton, NV R+42
- South Charleston, WV R+5
- Greendale, WI D+4
- Midland, GA R+6
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Sources and methodology
Precinct-level voting records used to fit the model come from Delaware Department 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.