The 3rd District: Who lives there and why it’s so competitive
New York’s 3rd Congressional District is an urban-suburban and well-educated district mostly situated in northern Nassau County east of New York City, although a small part crosses into northeastern Queens. Overall, 54 percent of the seat’s population that’s 25 years or older has at least a four-year college degree, compared with 36 percent nationally, ranking it among the top 10 percent of congressional districts by educational attainment. The district’s overall population is 55 percent non-Hispanic white, roughly similar to the nation as a whole, but it has a much larger share of residents with Asian backgrounds (25 percent versus about 6 percent nationally). The district is also among the wealthiest in the country by median household income (about $130,000 versus the national median of just under $75,000).
Politically, the highly-educated and affluent district is highly competitive with arguably a slight Democratic lean. Under the current district lines, first used in 2022, the seat would have backed the Democratic nominees for president by 5 and 8 percentage points in 2016 and 2020, respectively, which put the seat just a bit to the left of the nation as a whole. As of November, a plurality of voters in the district were registered Democrats (39 percent), with near-equal shares of registered Republicans and unaffiliated voters (about 28 percent each; the remainder identified with minor parties).
However, the 2022 midterms showed how the seat can very much be in play for the GOP. That year, Santos won in part because of “differential turnout,” whereby one party’s voters turn out at a much higher rate than the other’s. Based on an analysis by the Albany Times-Union, 64 percent of the district’s registered Republicans cast ballots compared with just 51 percent of Democrats. Like other Long Island Republicans, Santos received a boost from GOP gubernatorial nominee Lee Zeldin, who at the time represented the eastern part of the island in Congress. Zeldin gave Democratic Gov. Kathy Hochul a strong challenge, losing by just 6 points statewide, and he carried the 3rd District by 12 points — better than Santos’s 7.5-point victory margin.
—Geoffrey Skelley, 538