Passaic County ( or ) is a county in the U.S. state of New Jersey that is part of the New York metropolitan area. As of the 2020 United States census, the county was the state's eighth-most-populous county, with a population of 524,118, its highest decennial count ever and an increase of 22,892 (+4.6%) from the 2010 census count of 501,226, which in turn reflected an increase of 12,177 (+2.5%) from the 489,049 counted in the 2000 census. The United States Census Bureau's Population Estimates Program estimated a 2025 population of 531,624, an increase of 7,506 (+1.4%) from the 2020 decennial census. The county is part of the North Jersey region of the state.
The most populous place in Passaic County is Paterson, the county seat, with 159,732 residents at the 2020 Census, more than 30% of the county's population, while West Milford covered , the largest total area of any municipality and more than 40% of the county's area.
Passaic County was created on February 7, 1837, from portions of Bergen and Essex counties. The county derives its name from "Pasaeck", which is a native Lenape word meaning "valley".
In recent years, average temperatures in the county seat of Paterson have ranged from a low of in January to a high of in July, although a record low of was recorded in January 1961 and a record high of was recorded in September 1953. Average monthly precipitation ranged from in February to in September. The county has a humid continental climate which is hot-summer (Dfa) except in higher areas to the north where it is warm-summer (Dfb).
The landscape of Passaic County, near the north edge of New Jersey, spans some hilly areas and has dozens of lakes. The county covers a region about . The region is split by major roads, including portions of Interstate 287 and Interstate 80, near Paterson. The Garden State Parkway cuts across the southern end, near Clifton. The Passaic River winds northeast past Totowa into Paterson, where the river then turns south to Passaic, on the way to Newark, further south.
The highest point is any one of six areas on Bearfort Ridge in West Milford at approximately above sea level. The lowest elevation is approximately along the Passaic River in Clifton. The southeastern, more populous half of the county is either flat, along the Passaic and Pompton Rivers, or mildly hilly, among the Watchung Mountains. The northwestern section is rugged and mountainous, part of the New Jersey Highlands.
According to the U.S. Census Bureau, as of the 2020 Census, the county had a total area of , of which was land (93.8%) and was water (6.2%).
As of the 2020 census, the county had 524,118 people, 177,075 households, and 120,593 families. The population density was . There were 185,367 housing units at an average density of .
The racial makeup of the county was 43.8% White, 11.0% Black or African American, 1.2% American Indian and Alaska Native, 5.9% Asian, <0.1% Native Hawaiian and Pacific Islander, 25.7% from some other race, and 12.3% from two or more races. Hispanic or Latino residents of any race comprised 42.7% of the population.
The median age was 37.9 years. 23.0% of residents were under the age of 18 and 14.9% were 65 years of age or older. For every 100 females there were 93.4 males, and for every 100 females age 18 and over there were 90.4 males age 18 and over.
There were 177,075 households in the county, of which 36.2% had children under the age of 18 living in them. Of all households, 45.9% were married-couple households, 17.4% were households with a male householder and no spouse or partner present, and 30.3% were households with a female householder and no spouse or partner present. About 23.0% of all households were made up of individuals and 10.3% had someone living alone who was 65 years of age or older.
There were 185,367 housing units, of which 4.5% were vacant. Among occupied housing units, 51.0% were owner-occupied and 49.0% were renter-occupied. The homeowner vacancy rate was 1.1% and the rental vacancy rate was 3.5%.
97.2% of residents lived in urban areas, while 2.8% lived in rural areas.
The county's median household income was $77,040, and the median family income was $81,873. About 13.4% of the population were below the poverty line, including 24.7% of those under age 18 and 11.6% of those age 65 or over.
The 2010 United States census counted 501,226 people, 166,785 households, and 120,919 families in the county. The population density was 2,715.3 per square mile (1,048.4/km<sup>2</sup>). There were 175,966 housing units at an average density of 953.3 per square mile (368.1/km<sup>2</sup>). The racial makeup was 62.65% (314,001) White, 12.83% (64,295) Black or African American, 0.67% (3,348) Native American, 5.01% (25,092) Asian, 0.03% (156) Pacific Islander, 15.11% (75,735) from other races, and 3.71% (18,599) from two or more races. Hispanic or Latino of any race were 37.04% (185,677) of the population.
Of the 166,785 households, 34.5% had children under the age of 18; 48.7% were married couples living together; 17.5% had a female householder with no husband present and 27.5% were non-families. Of all households, 22.6% were made up of individuals and 9.4% had someone living alone who was 65 years of age or older. The average household size was 2.94 and the average family size was 3.45.
24.9% of the population were under the age of 18, 10.3% from 18 to 24, 27.1% from 25 to 44, 25.7% from 45 to 64, and 12% who were 65 years of age or older. The median age was 36.1 years. For every 100 females, the population had 94.2 males. For every 100 females ages 18 and older there were 91.1 males.
Same-sex couples headed one in 149 households in 2010.
As of the 2000 United States census there were 489,049 people, 163,856 households, and 119,614 families residing in the county. The population density was . There were 170,048 housing units at an average density of . The racial makeup of the county was 62.32% White, 13.22% Black or African American, 0.44% Native American, 3.69% Asian, 0.04% Pacific Islander, 16.24% from other races, and 4.05% from two or more races. 29.95% of the population were Hispanic or Latino of any race. Among those who reported their ancestry, 16.6% were of Italian, 9.5% Irish, 8.1% German and 6.2% Polish ancestry according to Census 2000.
There were 163,856 households, out of which 35.60% had children under the age of 18 living with them, 51.50% were married couples living together, 16.00% had a female householder with no husband present, and 27.00% were non-families. 22.20% of all households were made up of individuals, and 9.50% had someone living alone who was 65 years of age or older. The average household size was 2.92 and the average family size was 3.42.
In the county, the population was spread out, with 26.10% under the age of 18, 9.30% from 18 to 24, 31.30% from 25 to 44, 21.30% from 45 to 64, and 12.10% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 94.00 males. For every 100 females age 18 and over, there were 90.80 males.
The median income for a household in the county was $49,210, and the median income for a family was $56,054. Males had a median income of $38,740 versus $29,954 for females. The per capita income for the county was $21,370. About 9.40% of families and 12.30% of the population were below the poverty line, including 17.30% of those under age 18 and 9.20% of those age 65 or over.
The Passaic County Court House and Administration Building complex is located at the county seat in Paterson. In Passaic County's commission form of government, the Board of County Commissioners discharges both executive and legislative responsibilities. Seven Commissioners are elected at-large for three-year terms on a staggered basis. A Director and Deputy Director are elected from among the seven Commissioners, at an annual reorganization meeting in January. Passaic County operates through six standing committees of the Board of County Commissioners. They are: Administration & Finance; Health, Education and Community Affairs; Public Works and Buildings & Grounds; Law & Public Safety; Human Services and Planning and Economic Development. The Commissioners also appoint individuals to departments, agencies, boards, and commissions for the effective administration of the county government. In 2016, commissioners were paid $28,500, and the director was paid an annual salary of $29,500. The Commissioners select a County Administrator, who, in the role of chief administrative officer, supervises the day-to-day operation of the county government and its departments; County counsel Matthew Jordan took office as administrator in 2022, succeeding Anthony J. DeNova III, who had served as administrator for 19 years.
, Passaic County's Commissioners are (with terms for Chair and Vice-Chair ending every December 31):
Democrats have been in the majority since winning two of three seats up for election in the 1997 general election. Republicans have not held a seat on the county board since Nicolino Gallo was elected in 2021. In March 2023, the commission swore Orlando Cruz, the president of the Greater Paterson Chamber of Commerce (as well as its counterpart in neighboring Wayne), into office to replace retiring commissioner T.J. Best, who resigned at the beginning of the month to spend time with family members down in Georgia.
Constitutional officers, elected on a countywide basis, are:
The Passaic County Prosecutor is Camelia M. Valdes of Bloomingdale, who was appointed by Governor of New Jersey Jon S. Corzine in May 2009, and renominated by Governor Chris Christie in June 2015. Passaic County constitutes Vicinage 11 of the New Jersey Superior Court and is seated at the Passaic County Court House in Paterson; the Assignment Judge for Vicinage 11 is Ernest M. Caposela. Law enforcement at the county level is provided by the Passaic County Sheriff's Office and Passaic County Prosecutor's Office, which occasionally assist local police forces with investigations and patrol efforts.
Three Congressional Districts cover the county, with most of the northern portion of the county in the 5th District, most of the southern portion of the county in the 9th District, and the central portion of the county in the 11th District.
The 16 municipalities of Passaic County are represented by seven separate legislative districts.
The Passaic County Sheriff's Office provides law enforcement functions throughout the entirety of the county, plus unincorporated county area police patrol, detective, crime scene investigation, SWAT, K-9 function, operation of the Passaic County Jail, and the security of all county-owned facilities, including the Passaic County Court House and Administration Building. All of the incorporated municipalities within the county also have separate local police departments, almost always exclusively providing law enforcement operations within their physical boundaries.
In January 2024, Sheriff Richard Berdnik committed suicide inside a Turkish restaurant.
Passaic County has a number of NJ Transit stations, including Montclair State University, Little Falls, Wayne/Route 23, and Mountain View on the Montclair-Boonton Line. The âÂÂMain Lineâ corridor also runs through the county and includes the following stations: Hawthorne, Paterson, Clifton, Passaic, and Delawanna.
Passaic County has numerous important roads that travel within its borders:
Major county roads that pass through include: CR 502 (only in Wayne), CR 504, CR 509 CR 511 and CR 513.
Route 19 runs entirely through the county, connecting the Garden State Parkway with Interstate 80 and Paterson. Both Route 20 and Route 21 run along the eastern border alongside the Passaic River. Route 23 runs through the western section of the county, while both Route 3 and Route 161 go through Clifton. Route 62 also runs passes through entirely in Totowa. U.S. Route 202 runs roughly northâÂÂsouth only in Wayne Township while U.S. Route 46 traverses eastâÂÂwest.
Interstate 80 (Bergen-Passaic Expressway) runs eastâÂÂwest through the county, while Interstate 287 passes through the mountainous sections of Passaic. The Garden State Parkway also runs through the county solely in Clifton.
Passaic County was historically a swing county, as it voted for the national winner all but twice (in 1976 and 1992) between 1920 and 1992. Since 1996, the county has leaned Democratic until recently, as Republicans have made significant gains in the country, especially in the more urban parts. In the 2016 presidential election, Democratic support declined to 59.5%, although nominee Hillary Clinton still won the county comfortably overall, and the 2020 presidential election saw Democratic support decline to 57.5% - a margin of 16.5% for former Vice President Joe Biden over Republican President Donald Trump, which was a slightly wider margin than the state as a whole. Passaic County's namesake municipality, the small city of Passaic, saw the biggest overall drop for Biden compared to Clinton among its municipalities, which helped Trump narrow the gap in the county overall in 2020 compared to 2016. This outcome was in correspondence with the rightward trend of the county in recent years, which was also seen in the 2021 gubernatorial election. Democratic governor Phil Murphy won the county by just a 4% margin, while winning statewide by 3.2%. This was far below his 22% margin in 2017, when he won statewide by 14%.
In the 2024 presidential election, Donald Trump flipped the county Republican, and most notably, its cities of Passaic and Clifton. The county voted to the right of the state, which voted for Democratic nominee Kamala Harris by 6%. Trump became the first Republican to win a presidential election in the county since George H. W. Bush in the 1992 presidential election. Democrat Andy Kim won the county by just 3% in the concurrent 2024 U.S. Senate election in New Jersey, even as he won statewide by 10%. A year later, Passaic County flipped blue in the 2025 gubernatorial election, where Mikie Sherrill won the county by 16% over Jack Ciattarelli, voting to the left of the state.
As of August 1, 2020, there were a total of 318,029 registered voters in Passaic County, of which 128,114 (40.3%) were registered as Democrats, 64,389 (20.3%) were registered as Republicans and 120,282 (37.8%) were registered as Unaffiliated. There were 5,244 (1.7%) voters registered to other parties. Among the county's 2010 Census population, 53.2% were registered to vote, including 70.8% of those ages 18 and over.
The 16 municipalities in Passaic County (with 2010 Census data for population, housing units and area in square miles) are: Other, unincorporated communities in the county are listed next to their parent municipality. Most of these areas are census-designated places (CDPs) that have been created by the United States Census Bureau for enumeration purposes within a Township. Other communities and enclaves that exist within a municipality are also listed next to the name.
The Bureau of Economic Analysis calculated that the county's gross domestic product was $20.5 billion in 2021, which was ranked 13th in the state and was a 4.8% increase from the prior year.
Passaic County is served by New York City-based commercial television & radio stations and New Jersey Network public television.