New Castle County, Delaware Eviction Risk: Moderate

New Castle County carries an average eviction-risk score of 3.9/10, placing it in the Elevated tier, and it ranks 1 of 3 Delaware counties by risk level, meaning no other county in the state scores higher. For landlords and investors, that headline figure reflects a market where tenant-side financial stress is real: the average rent burden sits at 31.2% of income, 36.5% of households are renters, and the average rent of $1,618 per month leaves limited cushion when incomes dip. Across the county's 26 cities and communities, operating conditions range from manageable to genuinely challenging, and understanding that spread is as important as knowing the county average.

The intra-county score range of 3.6 to 4.9 is wide enough that two landlords operating in New Castle County, Delaware can face fundamentally different risk environments depending on which submarket they are in. The county average masks neighborhoods where rent collection is relatively stable alongside pockets where turnover, vacancy, and eviction filings are all running above the regional norm. Investors doing due diligence need city-level numbers, not just the county figure.

The cities inside New Castle County

The highest-risk communities in the county are concentrated in the older, densely rented corridor running north toward the state line. Newport scores 4.4/10, the highest in the county. Claymont comes in at 4.1/10, and Bear, Brookside, and Edgemoor each score 4.5/10. Bear has a population of 22,370 and Brookside 15,115, making these sizable rental markets, not fringe communities. Wilmington Manor, Elsmere, and Ardentown each score 4.2/10, rounding out a cluster where landlords should build eviction-timeline assumptions into their underwriting.

On the lower end, Hockessin scores 4/10, the most landlord-friendly reading in the county's dataset. Newark, home to 30,330 residents, comes in at 4.6/10, a relative bright spot among larger markets. Wilmington, the county's largest city at 71,727 residents, scores 6.8/10, above the county average, confirming that scale and risk tend to travel together here. Risk in New Castle County is genuinely hyper-local: a portfolio spread across Newport and Hockessin carries nearly 3 points of score difference, which translates directly to different vacancy, default, and legal-cost profiles.

State-level laws that apply here

Every landlord in New Castle County operates under 25 Del. C. § 5101 et seq., Delaware's Residential Landlord-Tenant Code. For non-payment of rent, the required notice period is 5 days. Lease-violation notices require 7 days to cure, and a no-cause end-of-term notice requires 30 days. Delaware does not currently require just cause for non-renewal, and there is no state-level rent cap formula in effect. Landlords considering the full cost of a disputed eviction should review the Delaware eviction costs breakdown: court filing fees run $45 to $125, sheriff lockout fees add $50 to $150, and attorney fees range from $500 to $3,000, depending on complexity. An uncontested case typically resolves in 30 to 45 days; a contested matter can extend to 60 to 120 days.

Landlords new to the state should also review the Delaware eviction process end to end before acquiring or listing a property, particularly given the county's Elevated average score. The state's retaliation protections under 25 Del. C. § 5516 and habitability standards under 25 Del. C. § 5305 create additional compliance obligations that affect lease drafting and maintenance response timelines. Landlords must also provide 48 hours notice before entering an occupied unit.

With a poverty rate of 14.2% and more than one in three households renting, the economic pressure driving New Castle County's Elevated score is distributed across all 26 cities in the grid above, making city-level comparison the most reliable first step for any acquisition or portfolio review.