Union County sits in northeastern New Jersey with approximately 575,000 residents across 21 municipalities, positioned between the urban intensity of Essex and Hudson counties and the suburban expanse of Middlesex and Somerset. The county encompasses a remarkable diversity — from the industrial port city of Elizabeth (NJ's fourth-largest city, adjacent to Newark Liberty Airport) to the exclusive suburb of Summit and the classic suburban charm of Westfield and Cranford. With excellent NJ Transit rail service on the Northeast Corridor and Raritan Valley lines, Union County communities offer strong commuter access to both New York and Newark, driving consistent residential demand.
Last updated: March 2026 · 9.4M+ properties indexed
Union County's property market reflects its position as a transitional zone between urban and affluent suburban New Jersey. Summit, with its Midtown Direct train service and upscale downtown, commands some of the highest property values in the county, rivaling top Morris and Essex County communities.
Westfield, known for its vibrant downtown shopping district and excellent schools, is one of NJ's most sought-after family communities. Cranford, the "Venice of New Jersey" (for its Rahway River crossings), offers a charming downtown with increasing demand from buyers seeking walkable suburban living.
Scotch Plains and Fanwood provide strong school districts and family-oriented neighborhoods at more accessible price points than Summit or Westfield. Springfield and New Providence offer suburban character with good transit access.
Elizabeth, the county seat, is one of NJ's most diverse cities with a major port facility, Newark Airport proximity, and extensive commercial activity. The city's residential market offers affordable entry points with transit access. Plainfield is an urban community with redevelopment potential and historic architecture.
Linden and Rahway provide mixed industrial/residential markets with transit access and revitalization activity along the NJ Transit corridor.
RegWatch provides comprehensive property intelligence for all 21 Union County municipalities. Search any address to access:
Professional plans include PDF report generation, portfolio monitoring, and bulk data access for title companies, law firms, and real estate professionals working across Union County.
RegWatch provides Union County property data from NJ sources:
Union County's 21 municipalities include:
Union County uses NJ's block-and-lot system across 21 municipalities. The county's compact geography means municipalities are relatively small, with diverse tax map configurations from Elizabeth's urban grid to Summit's residential streets.
Tax abatements are relevant in Elizabeth, Plainfield, and other urban communities with redevelopment incentive programs. PILOT agreements affect property tax records for qualifying developments.
Flood zone considerations apply to properties along the Rahway River, particularly in Cranford and Rahway, which experienced significant flooding from Hurricane Irene and other events. FEMA flood zone designations affect insurance and building requirements.
Title searches involve the Union County Clerk's office in Elizabeth, individual municipal tax offices, and the DCA permit system.
Search Union County property records on RegWatch by entering an address or block/lot number. RegWatch aggregates SR-1A sales, NJGIN parcels, DCA permits, and county clerk recordings for all 21 municipalities. The Union County Clerk's office in Elizabeth maintains official recordings.
Summit's Midtown Direct NJ Transit service provides a one-seat ride to Penn Station New York, commanding significant property value premiums. Westfield's Raritan Valley Line service also supports strong commuter demand. Properties within walking distance of these train stations typically command 10-20% premiums over comparable homes farther from transit.
Parts of Cranford and Rahway along the Rahway River are in FEMA flood zones following significant flooding events. Flood zone properties require flood insurance for federally-backed mortgages and may face building restrictions. Post-flood mitigation improvements (elevations, buyouts) have changed the property landscape in affected areas. Verify flood zone status during property due diligence.
Elizabeth offers affordable property with strong transit access (NJ Transit, Newark Airport proximity), diverse commercial activity, and port-related employment. Tax abatement and redevelopment programs may benefit certain projects. Investors should research the specific neighborhood, zoning, and any environmental considerations given the city's industrial heritage.
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