The 1984 United States presidential election in New Jersey took place on November 6, 1984. All 50 states and the District of Columbia, were part of the 1984 United States presidential election. Voters chose 16 electors to the Electoral College, which selected the president and vice president.

New Jersey was won by the Republican nominees, incumbent President Ronald Reagan of California and incumbent Vice President George H.W. Bush of Texas. Reagan and Bush defeated the Democratic nominees, former Vice President Walter Mondale of Minnesota and his running mate Congresswoman Geraldine Ferraro of New York.

Reagan carried New Jersey with 60.09% of the vote to Mondale’s 39.20%, a margin of 20.89%.

Reagan also swept nearly every county in the state. Mondale’s only county victory was Essex County, where he defeated Reagan 55.1%–43.5%. This remains the last election in which a Republican presidential nominee has won heavily Democratic Hudson County and Mercer County,Sullivan, Robert David; ‘How the Red and Blue Map Evolved Over the Past Century’; America Magazine in The National Catholic Review; June 29, 2016 both of which narrowly defected to Reagan in 1984 primarily due to the support of working-class Reagan Democrats. Reagan's 1.9 million votes was the most received by a Republican in a presidential election in the state's history until Donald Trump received over 1.96 million votes in the state in 2024.

New Jersey weighed in for this election as 2.7% more Republican than the national average.

Campaign Jesse Jackson's voters were 81% black, 13% white, 4% Hispanic, and 2% were members of other groups.

Results 1984 United States presidential election in New JerseyPartyCandidateVotesPercentageElectoral votes Republican Ronald Reagan (incumbent) 1,933,630 60.09% 16 Democratic Walter Mondale 1,261,323 39.20% 0 Workers World Larry Holmes 8,404 0.26% 0 Libertarian David Bergland 6,416 0.20% 0 New Alliance Dennis Serrette 2,293 0.07% 0 Communist Party Gus Hall 1,564 0.05% 0 Socialist Workers Melvin T. Mason 1,264 0.04% 0 Citizens Sonia Johnson 1,247 0.04% 0 Workers League Edward Winn 537 0.02% 0 Totals 3,217,862 100.0% 16 Voter Turnout (Voting age/Registered) 57%/79%

Results by county County Ronald ReaganRepublican Walter MondaleDemocratic Various candidatesOther parties Margin Total votes cast # % # % # % # % Atlantic 49,158 59.33% 33,240 40.12% 453 0.55% 15,918 19.21% 82,851 Bergen 268,507 63.22% 155,039 36.50% 1,172 0.28% 113,468 26.72% 424,718 Burlington 89,815 60.83% 57,467 38.92% 377 0.26% 32,348 21.91% 147,659 Camden 109,749 54.63% 90,233 44.92% 904 0.45% 19,516 9.71% 200,886 Cape May 28,786 68.06% 13,378 31.63% 133 0.31% 15,408 36.43% 42,297 Cumberland 29,398 57.47% 21,141 41.33% 616 1.20% 8,257 16.14% 51,155 Essex 136,798 43.49% 173,295 55.09% 4,450 1.41% -36,497 -11.60% 314,543 Gloucester 54,041 62.08% 32,702 37.57% 307 0.35% 21,339 24.51% 87,050 Hudson 112,834 54.18% 94,304 45.29% 1,106 0.53% 18,530 8.89% 208,244 Hunterdon 29,737 72.39% 10,972 26.71% 370 0.90% 18,765 45.68% 41,079 Mercer 71,195 51.55% 66,398 48.07% 528 0.38% 4,797 3.48% 138,121 Middlesex 160,221 59.82% 104,905 39.17% 2,727 1.02% 55,316 20.65% 267,853 Monmouth 152,595 65.52% 79,382 34.08% 932 0.40% 73,213 31.44% 232,909 Morris 137,719 71.91% 53,201 27.78% 584 0.30% 84,518 44.13% 191,504 Ocean 124,391 70.23% 51,012 28.80% 1,710 0.97% 73,379 41.43% 177,113 Passaic 101,951 58.28% 69,590 39.78% 3,399 1.94% 32,361 18.50% 174,940 Salem 17,368 65.66% 8,935 33.78% 149 0.56% 8,433 31.88% 26,452 Somerset 66,303 66.77% 31,924 32.15% 1,069 1.08% 34,379 34.62% 99,296 Sussex 35,680 75.36% 11,502 24.29% 163 0.34% 24,178 51.07% 47,345 Union 135,446 59.11% 92,056 40.17% 1,638 0.71% 43,390 18.94% 229,140 Warren 21,938 67.07% 10,647 32.55% 122 0.37% 11,291 34.52% 32,707Totals1,933,63060.09%1,261,32339.20%22,9090.71%672,30720.89%3,217,862 Counties that flipped from Democratic to Republican Mercer Hudson

See also United States presidential elections in New Jersey Presidency of Ronald Reagan

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