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New Jersey's 9th Congressional District election, 2024 (June 4 Republican primary)

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New Jersey's 9th Congressional District
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Democratic primary
Republican primary
General election
Election details
Filing deadline: March 25, 2024
Primary: June 4, 2024
General: November 5, 2024
How to vote
Poll times: 6 a.m. to 8 p.m.
Voting in New Jersey
Race ratings
Cook Political Report: Solid Democratic
DDHQ and The Hill: Safe Democratic
Inside Elections: Solid Democratic
Sabato's Crystal Ball: Safe Democratic
Ballotpedia analysis
U.S. Senate battlegrounds
U.S. House battlegrounds
Federal and state primary competitiveness
Ballotpedia's Election Analysis Hub, 2024
See also
New Jersey's 9th Congressional District
U.S. Senate • 1st • 2nd • 3rd • 4th • 5th • 6th • 7th • 8th • 9th • 10th • 11th • 12th
New Jersey elections, 2024
U.S. Congress elections, 2024
U.S. Senate elections, 2024
U.S. House elections, 2024

A Republican Party primary took place on June 4, 2024, in New Jersey's 9th Congressional District to determine which Republican candidate would run in the district's general election on November 5, 2024.

Billy Prempeh advanced from the Republican primary for U.S. House New Jersey District 9.

All 435 seats were up for election. At the time of the election, Republicans had a 220 to 212 majority with three vacancies.[1] As of June 2024, 45 members of the U.S. House had announced they were not running for re-election. To read more about the U.S. House elections taking place this year, click here.

In the 2022 election in this district, the Democratic candidate won 55.0%-43.6%. Daily Kos calculated what the results of the 2020 presidential election in this district would have been following redistricting. Joe Biden (D) would have defeated Donald Trump (R) 58.9%-40.0%.[2]

Candidate filing deadline Primary election General election
March 25, 2024
June 4, 2024
November 5, 2024


A primary election is an election in which registered voters select a candidate that they believe should be a political party's candidate for elected office to run in the general election. They are also used to choose convention delegates and party leaders. Primaries are state-level and local-level elections that take place prior to a general election. New Jersey utilizes a semi-closed primary process, in which the selection of a party's candidates in an election is generally limited to registered party members. Unaffiliated voters can register as party members at the polls on primary election day. Otherwise, a voter must indicate his or her party preference (e.g., via an updated voter registration) no later than the 55th day preceding the primary in order to vote in that party's primary.[3]

For information about which offices are nominated via primary election, see this article.

This page focuses on New Jersey's 9th Congressional District Republican primary. For more in-depth information on the district's Democratic primary and the general election, see the following pages:

Candidates and election results

Republican primary election

Republican primary for U.S. House New Jersey District 9

Billy Prempeh defeated Hector Castillo in the Republican primary for U.S. House New Jersey District 9 on June 4, 2024.

Candidate
%
Votes
✔
Image of Billy Prempeh
Billy Prempeh Candidate Connection
 
72.6
 
11,504
Image of Hector Castillo
Hector Castillo
 
27.4
 
4,352

There were no incumbents in this race. The results have been certified. Source

Total votes: 15,856
Candidate Connection = candidate completed the Ballotpedia Candidate Connection survey.
If you are a candidate and would like to tell readers and voters more about why they should vote for you, complete the Ballotpedia Candidate Connection Survey.

Do you want a spreadsheet of this type of data? Contact our sales team.

Withdrawn or disqualified candidates

Candidate profiles

This section includes candidate profiles that may be created in one of two ways: either the candidate completed Ballotpedia's Candidate Connection survey, or Ballotpedia staff may compile a profile based on campaign websites, advertisements, and public statements after identifying the candidate as noteworthy. For more on how we select candidates to include, click here.

Billy Prempeh

Image of Billy Prempeh

WebsiteFacebookTwitterYouTube

Party: Republican Party

Incumbent: No

Political Office: None

Submitted Biography:  "My name is Billy Prempeh, a dedicated advocate for the people of New Jersey's 9th congressional district. Born and raised in Paterson, NJ, I am a first-generation American with roots in Ghana. My commitment to our nation was solidified at 18 when I enlisted in the U.S. Air Force, pledging to defend our Constitution. As a staunch Republican, I advocate for conservative principles that reflect the values of liberty and economic freedom. My political journey in the 9th district is marked by significant gains: In the 2020 elections, I secured 31.9% of the vote, the highest Republican turnout in 30 years, with an additional 33,235 votes over the 2016 record. My 2022 campaign further increased engagement, capturing 44% of the vote, with a nearly tied result in Bergen County at 48.99%. These achievements underscore the growing support for our America First agenda and the potential for conservative leadership in New Jersey. I am committed to policies that prioritize American interests and enhance our community's prosperity. Join me in this mission to uphold the principles that make America great."

Key Messages

To read this candidate's full survey responses, click here.

8-10-12 Plan [Term Limits]: Advocating for fresh perspectives in our government, the 8-10-12 Plan proposes term limits of 8 years for Presidents, 10 years for Representatives, and 12 years for Senators. This initiative is designed to combat career politics and ensure dynamic, corruption-free governance. I commit to self-imposing these limits and support legislative changes to enforce these limits across all federal positions, promoting political progress and accountability. For more details on these initiatives, please visit https://www.billyprempeh.com/beliefs.

Freedom of Education Plan: I support empowering parents with the freedom to choose the best educational paths for their children, unrestricted by zip codes. Our Freedom of Education Plan champions school choice and enhances curricula with practical skills like financial literacy, preparing students for real-world success and fostering environments that nurture leadership and innovation. For more details on these initiatives, please visit https://www.billyprempeh.com/beliefs.

Revive America Plan: As a candidate dedicated to New Jersey's 9th congressional district, I am committed to restoring economic vitality in our communities, particularly those impacted by the pandemic. Through the Revive America Plan, I aim to attract manufacturing back to our district, repurposing abandoned factories and offering incentives to businesses that create local jobs. This plan will not only create high-paying jobs but also ensure that our workforce is ready to meet the demands of a revitalized economy through practical education and job training initiatives. For more details on these initiatives, please visit https://www.billyprempeh.com/beliefs.

This information was current as of the candidate's run for U.S. House New Jersey District 9 in 2024.

Voting information

See also: Voting in New Jersey

Election information in New Jersey: June 4, 2024, election.

What was the voter registration deadline?

  • In-person: May 14, 2024
  • By mail: Postmarked by May 14, 2024
  • Online: May 14, 2024

Was absentee/mail-in voting available to all voters?

N/A

What was the absentee/mail-in ballot request deadline?

  • In-person: June 3, 2024
  • By mail: Received by May 28, 2024
  • Online: N/A

What was the absentee/mail-in ballot return deadline?

  • In-person: June 4, 2024
  • By mail: Postmarked by June 4, 2024

Was early voting available to all voters?

N/A

What were the early voting start and end dates?

May 29, 2024 to June 2, 2024

Were all voters required to present ID at the polls? If so, was a photo or non-photo ID required?

N/A

When were polls open on Election Day?

6:00 a.m. - 8:00 p.m. (EST)


Campaign finance

Name Party Receipts* Disbursements** Cash on hand Date
Hector Castillo Republican Party $0 $0 $0 Data not available***
Billy Prempeh Republican Party $49,756 $48,803 $193 As of December 31, 2024

Source: Federal Elections Commission, "Campaign finance data," 2024. This product uses the openFEC API but is not endorsed or certified by the Federal Election Commission (FEC).

* According to the FEC, "Receipts are anything of value (money, goods, services or property) received by a political committee."
** According to the FEC, a disbursement "is a purchase, payment, distribution, loan, advance, deposit or gift of money or anything of value to influence a federal election," plus other kinds of payments not made to influence a federal election.
*** Candidate either did not report any receipts or disbursements to the FEC, or Ballotpedia did not find an FEC candidate ID.

District analysis

Click the tabs below to view information about voter composition, past elections, and demographics in both the district and the state.

  • District map - A map of the district in place for the election.
  • Competitiveness - Information about the competitiveness of 2024 U.S. House elections in the state.
  • Presidential elections - Information about presidential elections in the district and the state.
  • State party control - The partisan makeup of the state's congressional delegation and state government.


Below was the map in use at the time of the election. Click the map below to enlarge it.

2023_01_03_nj_congressional_district_09.jpg
See also: Primary election competitiveness in state and federal government, 2024

This section contains data on U.S. House primary election competitiveness in New Jersey.

New Jersey U.S. Senate competitiveness, 2014-2024
Office Districts/
offices 		Seats Open seats Candidates Possible primaries Contested Democratic primaries Contested Republican primaries % of contested primaries Incumbents in contested primaries % of incumbents in contested primaries
2024 1 1 0 7 2 1 1 100.0% 0 0.0%
2020 1 1 0 7 2 1 1 100.0% 1 100.0%
2018 1 1 0 4 2 1 1 100.0% 1 100.0%
2014 1 1 0 5 2 0 1 50.0% 0 0.0%

U.S. House

New Jersey U.S. House competitiveness, 2014-2024
Office Districts/
offices 		Seats Open seats Candidates Possible primaries Contested Democratic primaries Contested Republican primaries % of contested primaries Incumbents in contested primaries % of incumbents in contested primaries
2024 12 12 1 50 24 7 9 66.7% 7 63.6%
2022 12 12 1 56 24 6 9 62.5% 6 54.5%
2020 12 12 0 50 24 8 7 62.5% 8 66.7%
2018 12 12 2 49 24 8 4 50.0% 5 50.0%
2016 12 12 0 37 24 6 4 41.7% 7 58.3%
2014 12 12 3 45 24 7 5 50.0% 4 44.4%

Post-filing deadline analysis

The following analysis covers all U.S. House districts up for election in New Jersey in 2024. Information below was calculated on April 14, 2024, and may differ from information shown in the table above due to candidate replacements and withdrawals after that time.

Fifty candidates, including 25 Democrats and 25 Republicans, ran for New Jersey’s 12 U.S. House districts. That’s 4.17 candidates per district, less than the 4.67 candidates per district that ran in 2022 but the same as the 4.17 candidates per district that ran in 2020.

This was the first election to take place after U.S. District Judge Zahid Quraishi issued a preliminary injunction blocking the use of the county line primary ballot design in the Democratic Primary.

The 3rd Congressional District was the only open district, meaning no incumbents filed to run. That’s the same as in 2022, when one district was open. There were no open districts in 2020, two in 2018, none in 2016, and three in 2014.

Incumbent Andrew Kim (D-3rd) did not run for re-election to run for the U.S. Senate.

Nine candidates—five Democrats and four Republicans—ran for the open 3rd Congressional District, the most candidates that ran for a seat in New Jersey in 2024.

Sixteen primaries—seven Democratic and nine Republican—were contested in 2024, the most this decade. Fifteen primaries were contested in 2022 and 2020, respectively. There were 12 contested primaries in 2018, 10 contested primaries in 2016, and 12 in 2014.

Seven incumbents—five Democrats and two Republicans—faced primary challengers in 2024. That’s one more than in 2022, when six incumbents faced primary challengers, but less than in 2020, when eight faced primary challengers.

Candidates filed to run in the Republican and Democratic primaries in all twelve districts, meaning no seats were guaranteed to either party.

Partisan Voter Index

See also: The Cook Political Report's Partisan Voter Index

Heading into the 2024 elections, based on results from the 2020 and 2016 presidential elections, the Cook Partisan Voter Index for this district was D+8. This meant that in those two presidential elections, this district's results were 8 percentage points more Democratic than the national average. This made New Jersey's 9th the 138th most Democratic district nationally.[4]

2020 presidential election results

The table below shows what the vote in the 2020 presidential election would have been in this district. The presidential election data was compiled by Daily Kos.

2020 presidential results in New Jersey's 9th based on 2024 district lines
Joe Biden Democratic Party Donald Trump Republican Party
58.9% 40.0%

Inside Elections Baselines

See also: Inside Elections

Inside Elections' Baseline is a figure that analyzes all federal and statewide election results from the district over the past four election cycles. The results are combined in an index estimating the strength of a typical Democratic or Republican candidate in the congressional district.[5] The table below displays the Baseline data for this district.

Inside Elections Baseline for 2024
Democratic Baseline Democratic Party Republican Baseline Republican Party Difference
59.2 38.7 D+20.4

Presidential voting history

See also: Presidential election in New Jersey, 2020

New Jersey presidential election results (1900-2020)

  • 15 Democratic wins
  • 16 Republican wins
Year 1900 1904 1908 1912 1916 1920 1924 1928 1932 1936 1940 1944 1948 1952 1956 1960 1964 1968 1972 1976 1980 1984 1988 1992 1996 2000 2004 2008 2012 2016 2020
Winning Party R R R D R R R R D D D D R R R D D R R R R R R D D D D D D D D
See also: Party control of New Jersey state government

Congressional delegation

The table below displays the partisan composition of New Jersey's congressional delegation as of May 2024.

Congressional Partisan Breakdown from New Jersey
Party U.S. Senate U.S. House Total
Democratic 2 9 11
Republican 0 3 3
Independent 0 0 0
Vacancies 0 0 0
Total 2 12 14

State executive

The table below displays the officeholders in New Jersey's top four state executive offices as of May 2024.

State executive officials in New Jersey, May 2024
Office Officeholder
Governor Democratic Party Phil Murphy
Lieutenant Governor Democratic Party Tahesha Way
Secretary of State Democratic Party Tahesha Way
Attorney General Democratic Party Matt Platkin

State legislature

New Jersey State Senate

Party As of February 2024
     Democratic Party 25
     Republican Party 15
     Other 0
     Vacancies 0
Total 40

New Jersey General Assembly

Party As of February 2024
     Democratic Party 52
     Republican Party 28
     Other 0
     Vacancies 0
Total 80

Trifecta control

The table below shows the state's trifecta status from 1992 until the 2024 election.

New Jersey Party Control: 1992-2024
Thirteen years of Democratic trifectas  •  Eight years of Republican trifectas
Scroll left and right on the table below to view more years.

Year 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Governor D D R R R R R R R R D D D D D D D D R R R R R R R R D D D D D D D
Senate R R R R R R R R R R S S D D D D D D D D D D D D D D D D D D D D D
Assembly R R R R R R R R R R D D D D D D D D D D D D D D D D D D D D D D D

Ballot access

The table below details filing requirements for U.S. House candidates in New Jersey in the 2024 election cycle. For additional information on candidate ballot access requirements in New Jersey, click here.

Filing requirements for U.S. House candidates, 2024
State Office Party Signatures required Filing fee Filing deadline Source
New Jersey U.S. House Ballot-qualified party 200 N/A 3/25/2024 Source
New Jersey U.S. House Unaffiliated 100 N/A 6/4/2024 Source

See also

External links

Footnotes

  1. ↑ A majority in the U.S. House when there are no vacancies is 218 seats.
  2. ↑ Daily Kos, "Daily Kos Elections' 2020 presidential results by congressional district, for new and old districts," accessed September 15, 2022
  3. ↑ New Jersey Department of State, "N.J. Rev. Stat. § 19:23–45," accessed October 21, 2025
  4. ↑ Cook Political Report, "The 2022 Cook Partisan Voting Index (Cook PVI℠)," accessed January 10, 2024
  5. ↑ Inside Elections, "Methodology: Inside Elections’ Baseline by Congressional District," December 8, 2023


New Jersey's current delegation to the United States Congress
Senators
Cory Booker (D)
Andrew Kim (D)
Representatives
District 1
District 2
District 3
District 4
District 5
District 6
District 7
District 8
District 9
District 10
District 11
District 12
Democratic Party (11)
Republican Party (3)


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