The map below shows the political leanings of people in and around DuPage County. Darker red areas have relatively more Republican voters, dark blue areas vote mostly for Democrats compared to other counties in Illinois, and areas in paler shades are where the vote tends to be split more evenly between parties.
DuPage County tends to be slightly democratic based on voting results in recent elections. Compared to other nearby counties, DuPage County has more democratic voters. Compared to the nation as a whole, DuPage County leans more democratic.
Highly educated populations with bachelor’s degrees or higher tend to vote for more liberal candidates. In DuPage County, 49.99% of all adults have earned a bachelor’s degree or higher. Educated women are far less likely to vote for conservatives, and in DuPage County women make up 50.89% of the population.
Older Americans tend to vote more conservatively. Members of the Boomer and Silent generations (born 1928-1964) more often vote for Republicans while GenX, Millennials (born 1965-1996) and younger generations consistently support Democrats. The median age in DuPage County is 41.3, which is older than the national median age of 38.1.
Is DuPage County a political battleground? Across all types of political contests in DuPage County, including state, local and presidential elections, races come within five percentage points 37% of the time.
Note: Federal, local, and Illinois elections are weighed based on the recency of the election and the importance most voters assign to each seat.
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