The Simple Answer: It's 12
Let's get the easy part out of the way first. New Jersey has 12 congressional districts, meaning it sends 12 representatives to the U.S. House of Representatives. This number is determined by the state's total population relative to the rest of the country after each national census. For decades, New Jersey has been losing districts due to slower population growth, dropping from 15 seats after the 1980 census to just 12 after the 2010 census. Many expected the state to lose another seat after the 2020 Census. However, thanks to a surprising 5.7% population increase, New Jersey held on to its dozen districts. While the number of seats didn't change this time, the boundaries of nearly every district certainly did.
Why Maps Get a Makeover Every 10 Years
The U.S. Constitution requires
a census every ten years to count every person in the country. This data is then used for reapportionment—divvying up the 435 seats in the House of Representatives among the states. Once a state knows how many seats it has, it must draw new district lines, a process called redistricting. The goal is to ensure each district has a roughly equal number of people, upholding the principle of "one person, one vote." The 2020 Census revealed significant population shifts within New Jersey. Some counties, like Hudson and Essex, saw double-digit growth, while others in the southern and northwestern parts of the state saw their populations decline. These internal migrations meant the old district map from 2011 was no longer balanced, legally requiring every line to be redrawn.
A High-Stakes Tie-Breaker
In New Jersey, congressional maps aren't drawn by the legislature but by a special 13-member commission. This commission is made up of six Democrats and six Republicans. As you can imagine, with equal numbers from both parties, gridlock is practically guaranteed. To break the inevitable tie, a 13th independent member is chosen. If the partisan members can't agree on one, the New Jersey Supreme Court steps in to appoint the tie-breaker. Following the 2020 Census, the commission deadlocked, and the decision fell to John Wallace Jr., a retired state Supreme Court justice. Both Democrats and Republicans submitted their preferred maps, and on December 22, 2021, Wallace cast the deciding vote, choosing the map proposed by the Democrats.
The Reasoning and the Fallout
Justice Wallace's reasoning for choosing the Democratic map was straightforward: since Republicans had won the tie-breaker and their map was chosen during the previous redistricting cycle in 2011, he believed it was only fair to choose the Democratic map this time around. The decision, while simple in its logic, was immediately controversial. Republicans argued the choice should have been based on which map was objectively better, not on taking turns. They filed a lawsuit to block the new map, but the state Supreme Court dismissed the challenge, cementing the Democratic-drawn districts for the next decade. The new map, which took effect for the 2022 elections, resulted in a congressional delegation of nine Democrats and three Republicans.
How the New Lines Shifted Power
The new map made significant changes on the ground, altering the political landscape in several key areas. For example, the 7th Congressional District, long a competitive swing district represented at the time by Democrat Tom Malinowski, was redrawn to be more Republican-friendly. Malinowski subsequently lost his seat in the 2022 election to Republican Tom Kean Jr. Conversely, districts like the 3rd and 5th, which had been competitive, were reshaped to be safer for Democrats. The changes were a strategic move, shoring up incumbent Democrats by packing more Democratic voters into their districts while effectively conceding the redrawn 7th District. This illustrates the core tension of redistricting: the lines that get drawn can often pre-determine election outcomes for years to come.
