Jersey County, Illinois Eviction Risk: Low

Jersey County, Illinois eviction laws earns an average eviction-risk score of 3.1/10 (Low), placing it among the more landlord-friendly markets in the state. Ranked 80th of 102 Illinois counties, it sits in the lower-risk third statewide: 79 counties carry higher risk and only 22 are less risky. For investors working across the county's 8 cities, that translates to a rental environment where tenant-default pressure is relatively contained, average rent runs $881 per month, and the average renter household allocates 29% of income to housing, suggesting a tenant base that is modestly, but not critically, rent-burdened.

The intra-county spread runs from a low of 2.4/10 to a high of 3.3/10, a range narrow enough that no single city dramatically distorts the picture but wide enough to reward careful city-level underwriting before acquisition. A county-wide average rarely tells the full story in a rural Illinois market, and Jersey County is no exception.

The cities inside Jersey County

Brighton carries the highest risk score in the county at 3.3/10, with a population of 2,306. It is followed closely by Elsah at 3.2/10 (population 708) and the county seat, Jerseyville, at 3.1/10, home to the county's largest resident base of 7,445 people. These three communities are where most rental inventory concentrates, and their scores, while still in the Low tier, sit at the upper edge of the county range.

On the other end, Fieldon scores 2.4/10, the lowest in the county, with Grafton and Otterville each at 2.6/10. Kane and Fidelity both register 2.9/10. Even at the higher end, no city in Jersey County reaches a score that would classify it as a high-risk market by Illinois standards, but the roughly one-point gap between Fieldon and Brighton is meaningful at the deal level. Landlords should treat each city as its own underwriting unit rather than relying on the county average alone.

State-level laws that apply here

Every landlord in Jersey County operates under 735 ILCS 5/9, the Illinois Forcible Entry and Detainer Act. For nonpayment of rent, the required notice period is 5 days; a material lease violation triggers a 10-day notice; and a month-to-month holdover requires 30 days. A fixed-term lease that simply expires requires no additional notice under 735 ILCS 5/9-205. Illinois does not require just cause to end a tenancy, and state law preempts any local rent-control ordinance, so landlords face no local caps on rents across the county. For a full walkthrough of procedure and timing, see the Illinois eviction process guide.

Once a case is filed, an uncontested eviction typically resolves in 30 to 60 days; a contested case can stretch to 60 to 150 days. Filing fees run $200 to $400, sheriff lockout fees add $60 to $200, and attorney fees commonly range from $750 to $3,500 depending on complexity. Reviewing Illinois eviction costs in detail before budgeting reserves is advisable for any landlord active in this market.

With an average poverty rate of 14.2% and roughly 24.8% of households renting, Jersey County's tenant pool is smaller and more stable than many Illinois eviction laws markets, a dynamic reflected in city-level scores that remain uniformly in the Low tier across all eight cities listed above.