Union County, New Jersey Eviction Risk: High

Union County scores an average of 8/10 (High risk) across its 19 municipalities, placing it 6th of 21 counties in New Jersey, with only 5 counties carrying higher risk statewide. That figure puts Union County firmly in the higher-risk third of the state, and landlords evaluating this market need to factor in a renter share of 50.8%, an average rent of $1,814, and an average rent burden of 31.4% among those renters. Those pressure points translate directly into elevated eviction frequency and contested proceedings that drag out the recovery timeline.

The county-wide average masks a wide intra-county swing: city scores range from 5.4 at the low end to 8.6 at the high end. A landlord with units in multiple Union County towns can face dramatically different operating environments depending on which side of a municipal line a property sits on. Selecting locations thoughtfully within the county is as important as deciding to operate here at all.

The cities inside Union County

The riskiest cities in Union County are Plainfield and Roselle, each scoring 8.6/10. Plainfield is one of the county's larger cities with a population of 55,236, while Roselle has a population of 22,646, making their shared top-of-scale risk particularly significant for investors sizing up rental exposure. Rahway follows at 8.5/10 (population 30,109), and Elizabeth, the county's largest city at 137,302 residents, scores 8.4/10. Vauxhall scores 8.3/10 and Linden 8.2/10. This concentration of high-scoring cities in the eastern and central portions of the county reflects structural factors including dense renter populations and sustained economic pressure.

Lower-risk pockets do exist. Westfield scores 6.6/10 and Summit scores 7.3/10, offering meaningfully softer risk profiles for landlords who can operate in those submarkets. Risk is genuinely hyper-local here, and city-level data should anchor any acquisition or portfolio decision.

State-level laws that apply here

New Jersey eviction laws state law governs eviction procedure for all Union County landlords under N.J.S.A. § 46:8 and N.J.S.A. § 2A:18 (the Anti-Eviction Act). Just cause is required to remove a tenant, and the notice period varies by reason: nonpayment of rent carries no statutory notice period before filing, disorderly conduct and willful damage each require a 3-day notice, a substantial lease violation requires 30 days, and an owner move-in or substantial renovation requires 60 days. Even uncontested cases run 30 to 60 days to resolution; contested matters extend to 90 to 180 days. Understanding the full New Jersey eviction process before placing a tenant is essential. Court filing fees run $50 to $100, sheriff lockout fees run $40 to $150, and attorney fees typically range from $750 to $3,500, meaning total out-of-pocket costs on a litigated case can reach several thousand dollars. New Jersey does not preempt local rent control, so individual municipalities may layer additional restrictions on top of state law. Source-of-income is a protected class under state law, which affects screening practices. Landlords unfamiliar with these stacking obligations should review New Jersey security deposit limits and New Jersey tenant protections before signing leases in this county.

With an average poverty rate of 10.5% and renters making up more than half the county's households, the city-level risk grid above is the sharpest tool available for distinguishing safer submarkets from the highest-exposure ZIP codes in Union County.