Canyon County, Idaho Eviction Risk: Very Low

Canyon County, Idaho eviction laws earns an average eviction-risk score of 2.2/10 (Low) across its 8 cities, placing it at rank 42 of 44 Idaho counties, meaning only 2 counties in the state are less risky for landlords. With 41 of Idaho's counties carrying higher risk scores, Canyon County sits firmly in the lower-risk third of the state. For investors and landlords evaluating the western Treasure Valley, that ranking translates to a broadly stable rental environment, average rent of $1,338, and a renter share of just 27.7% of the county's roughly 194,158 residents.

The county-wide average, however, obscures meaningful variation within its borders. Scores range from 1.6 at the low end to 2.7 at the high end, a gap that matters when you are comparing a large urban rental portfolio in Nampa eviction risk to a small rural investment in one of the county's outlying towns. Rent burden sits at an average of 30.4% of income, and a poverty rate of 11.5% is worth monitoring when underwriting individual deals, particularly in smaller municipalities.

The cities inside Canyon County

The highest-risk city in the county is Caldwell, scoring 2.3/10 with a population of 2,074. Close behind are Parma (2/10, population 1,928) and Greenleaf (2.1/10, population 1,482), followed by Melba at 2.2/10 and Notus at 2.1/10. These are small, rural communities where a single tenant dispute can represent an outsized share of a landlord's portfolio exposure, and where local economic conditions can shift the risk calculus quickly.

At the other end of the spectrum, Nampa, the county's largest city at 110,319 residents, carries the lowest score in the county at 1.6/10. Caldwell, the second-largest at 66,516, follows at 2.3/10. These two cities account for the bulk of the county's rental inventory, and their favorable scores are the primary reason the county average lands where it does. Middleton comes in at 2/10 with a population of 10,649. The lesson is straightforward: risk is hyper-local, and a county-level score should be a starting point, not a final answer.

State-level laws that apply here

Idaho state law under Idaho Code § 6-301 et seq. (Forcible Entry and Detainer) sets a 3-day notice period for both nonpayment of rent and lease violations, one of the shorter notice windows in the region. A no-cause termination requires a 30-day notice. Once a landlord files, an uncontested case resolves in roughly 21 to 45 days; a contested case can run 45 to 120 days. Court filing fees range from $160 to $260, sheriff lockout fees from $30 to $120, and attorney fees from $500 to $2,500 depending on complexity. Anyone underwriting deals here should review the full Idaho eviction costs picture before modeling worst-case scenarios.

Idaho does not require just cause for eviction and has no rent control, and state law preempts any local jurisdiction from enacting rent caps. Source-of-income is not a protected class under state fair housing law. Retaliation and habitability protections are addressed under Idaho Code § 6-320. For a complete walkthrough of the process from notice to lockout, the Idaho eviction process guide covers the procedural steps in detail.

With a county poverty rate of 11.5% and a renter share of 27.7%, the fundamentals in Canyon County are relatively landlord-friendly, but the city-level grid above shows why Nampa eviction risk and Caldwell eviction risk warrant a different risk conversation than Wilder or Parma.