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County · code 34031

Passaic CountyNew Jersey

Passaic County is a county in New Jersey, with its seat in Paterson. The county was formed on February 7, 1837, from parts of Bergen and Essex counties.

  • Founded1837
  • County seatPaterson
  • Land area186 sq mi + 12 sq mi water
  • Population524,118 2020 Census
  • Parcels mapped132,535 checked 15 October 2026
Open the free map Click any parcel in Passaic County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

BergenEssexMorrisRockland, NYOrange, NYSussex Paterson Census outline · seat marked

Where it is

Passaic on the map of New Jersey

New Jersey has 21 counties and county equivalents, each with its own records office. Shapes with a page are links.

Atlantic CountyBergen CountyBurlington CountyCamden CountyCape May CountyCumberland CountyEssex CountyGloucester CountyHudson CountyHunterdon CountyMercer CountyMiddlesex CountyMonmouth CountyMorris CountyOcean CountySalem CountySomerset CountySussex CountyUnion CountyWarren CountyPassaic County Passaic
Counties of New Jersey · Passaic highlighted

History

Formed in 1837 from Bergen County and Essex County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Passaic County was created from Bergen and Essex counties on February 7, 1837. In 1907, a small area was lost to Essex County.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1837
    Passaic County created Passaic created from Bergen and Essex.
    from Bergenfrom Essex
    · N.J. Acts 1837, pp. 96-97; Snyder, 36-37
  2. 1907
    Lost territory Passaic lost small area to Essex.
    to Essex
    · N.J. Acts 1907, p. 692; Snyder, 45

Land and parcels

What the maps cover in Passaic

Who publishes each layer, how good it is, and when we last checked.

Official
from the office that keeps the record
Good enough
a reliable statewide or national copy
Fallback
a guide only; check the official record
Missing
nothing public found yet

People and land

Passaic by the Census

Population
524,118 2020 Census count
Housing units
185,367 2020 Census count
Land area
186 square miles
Water area
12 square miles
People per sq mi
2,818 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Passaic County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

Open Passaic County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.

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Questions

Common questions about Passaic County

When was Passaic County founded?
Passaic County was founded in 1837, formed from Bergen County and Essex County.
What is the county seat of Passaic County?
The county seat of Passaic County is Paterson.
Is there an online parcel map for Passaic County?
Yes. A public source publishes a parcel map of 132,535 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Passaic County's boundary or name changed?
Passaic County was created in 1837 from Bergen County and Essex County. Since then the Atlas of Historical County Boundaries records 1 later change, most of them small boundary adjustments, chiefly involving Essex County.
Is my lot in a flood zone?
We do not have flood maps for Passaic County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door