Lewis County is one of Idaho’s smallest and least populous counties, both by land area and population. Covering just 480 square miles in north-central Idaho, it is the fourth smallest county in the state by area and the fourth least populous, with a 2020 census count of 3,533 residents. Established in 1911 from Nez Perce County and named for the explorer Meriwether Lewis, the county occupies the northern portion of the Camas Prairie — an elevated, prairie-like plateau south of the Clearwater River that produces dryland wheat, barley, and other grains. The Clearwater River, where Lewis and Clark’s Corps of Discovery built their canoes for the westward river journey to the Pacific in October 1805 (and where they camped near Kamiah for a month upon their return in spring 1806), forms the county’s eastern boundary.
The county seat is Nez Perce, a small community of approximately 700 residents. Kamiah, situated along the Clearwater River near the county’s eastern edge, is the county’s largest city with approximately 1,500 residents and serves as the commercial and healthcare hub for much of eastern Lewis County and the western edge of Clearwater County. Most of Lewis County lies within the original boundaries of the Nez Perce Indian Reservation, which was established following the 1855 treaty and opened for non-Native settlement in November 1895. Despite this reservation geography, Native Americans make up less than 6% of the county’s population today, reflecting the extensive land transfer to non-Native agricultural settlers following the 1895 opening.
All landlord-tenant matters in Lewis County are governed by Idaho Code §§ 6-301 et seq. (evictions), §§ 6-320 and 6-321 (security deposits), and §§ 55-208 and 55-307 (tenancy and notice). Eviction actions are filed as Unlawful Detainer proceedings at the Lewis County District Court (Second Judicial District), 510 Oak Street, Nez Perce, ID 83543, (208) 937-2661. Idaho prohibits rent control statewide.
Camas Prairie dryland farming (wheat, barley, legumes); timber (Clearwater drainage); Kamiah healthcare (St. Mary’s Hospital); county government; school district; limited retail serving Clearwater River corridor
Reservation Context
Most of county within Nez Perce Indian Reservation original boundaries; opened for white settlement 1895; Native Americans <6% of current population; reservation governance applies to tribal lands
Rent Control
Prohibited statewide (Idaho Code § 55-304)
Landlord Rating
2/10 — Extremely thin rental market; very small and declining population; high homeownership; no economic growth drivers; 4th least populous Idaho county; no local ordinances
⚖️ Eviction At-a-Glance
Nonpayment Notice
3-Day Notice to Pay or Vacate
Lease Violation
3-Day Notice to Perform or Quit
No-Cause (Month-to-Month)
30-Day Written Notice
Court
Lewis County District Court — Magistrate Division (2nd Judicial District)
Courthouse Address
510 Oak St, Nez Perce, ID 83543
Court Phone
Main: (208) 937-2661 — General: (208) 937-2451
Court Hours
Mon–Fri 8:00 a.m.–5:00 p.m.
Process Name
Unlawful Detainer
Post-Judgment
Writ of Possession; tenant has 72 hrs to vacate
Security Deposit
No cap; return within 21 days; 3× penalty for wrongful withholding
Avg Timeline
3–5 weeks typical
Lewis County Local Ordinances & Landlord Rules
Idaho state law governs landlord-tenant matters throughout Lewis County — no supplemental local ordinances
Category
Details
No Local Ordinances
Neither Lewis County nor any of its cities — Nez Perce, Kamiah, Craigmont, Winchester, or Reubens — has enacted local landlord-tenant ordinances supplementing Idaho state law. No rental registration, no source-of-income protections, no supplemental notice requirements. Idaho Code §§ 6-301 et seq. applies exclusively throughout the county.
Rent Control
Idaho Code § 55-304 prohibits rent control statewide. No jurisdiction in Lewis County may enact rent stabilization. Month-to-month rent increases require 30 days’ prior written notice before the rent due date.
Security Deposit
No statutory cap under Idaho law. Idaho Code § 6-321 requires return of the deposit or itemized written deductions within 21 days of tenancy end (up to 30 if lease specifies). Failure to comply forfeits the right to withhold and exposes the landlord to 3× damages plus attorney fees. Move-in condition documentation is essential.
A Two-Center County
Lewis County effectively has two population centers with different characters. Nez Perce, the county seat, sits on the Camas Prairie upland and serves as the administrative hub for the county’s farming community. Kamiah, on the Clearwater River about 20 miles east, is the county’s largest city and primary commercial center, served by St. Mary’s Hospital, schools, and the retail services needed by both Lewis County and nearby Clearwater County residents. The Clearwater River valley around Kamiah is notably warmer and sunnier than the upland prairie, and Kamiah has attracted some retirement and amenity-driven in-migration. Any rental investment in Lewis County is concentrated almost entirely in these two centers.
Reservation Context and Tribal Jurisdiction
Most of Lewis County’s land area falls within the original boundaries of the Nez Perce Indian Reservation established by the 1855 treaty. While the reservation was opened for non-Native settlement in 1895 and most of the land is now privately owned by non-Native residents, some parcels remain in tribal ownership or trust status. Landlord-tenant matters on tribal trust land involve jurisdictional questions that are beyond the scope of Idaho state law and may require tribal court or federal jurisdiction analysis. Landlords should consult a licensed Idaho attorney with expertise in tribal jurisdiction if they own or manage property on trust land within Lewis County.
Market Conditions
With approximately 76.4% of households owning their homes, Lewis County’s rental market is among the thinnest in Idaho. The total rental housing stock likely numbers in the hundreds of units across the entire county. Landlords in Kamiah benefit from a slightly more active market driven by the hospital and school district employment base and some retirement in-migration to the Clearwater River valley. Landlords in Nez Perce, Craigmont, and Winchester serve a predominantly farming community where rental demand is modest and tenant turnover can be tied to agricultural employment cycles.
Idaho Code §§ 6-301 et seq. — statutes, notice requirements, and landlord rights that apply in Lewis County
⚡ Quick Overview
3
Days Notice (Nonpayment)
3
Days Notice (Violation)
15-30
Avg Total Days
$166
Filing Fee (Approx)
💰 Nonpayment of Rent
Notice Type3-Day Notice to Pay or Quit
Notice Period3 days
Tenant Can Cure?Yes
Days to Hearing5-12 days
Days to Writ3-5 days
Total Estimated Timeline15-30 days
Total Estimated Cost$200-$500
⚠️ Watch Out
Idaho is very landlord-friendly with fast timelines. 3-day notice is one of the shortest in the nation. No state-mandated cure period beyond the notice.
Serve the required notice based on the eviction reason (nonpayment or lease violation).
Wait for the notice period to expire. If tenant cures the issue (where allowed), the process stops.
File an eviction case with the Magistrate Court. Pay the filing fee (~$166).
Tenant is served with a summons and has the opportunity to respond.
Attend the court hearing and present your case.
If you prevail, obtain a writ of possession from the court.
Law enforcement executes the writ and removes the tenant if necessary.
⚠️ Disclaimer: This page provides general information about Idaho eviction laws and does not constitute legal advice.
Eviction procedures can vary by county and may change over time. Local jurisdictions may have additional requirements or tenant protections.
For specific legal guidance, consult a qualified Idaho attorney or local legal aid organization.
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⚠️ Disclaimer: These calculations are estimates based on state statutes and typical court timelines. Actual results vary by county, court backlog, and case specifics. Always verify current requirements with your local courthouse. This is not legal advice.
~3,533 residents (2020); ~3,680 (2024). 4th least populous, 4th smallest area (480 sq mi) Idaho county. Nez Perce (county seat, ~700). Kamiah (~1,500; largest city; Clearwater River; St. Mary’s Hospital). Craigmont (~500), Winchester (~350). Most land within original Nez Perce Reservation boundaries (opened 1895). Camas Prairie dryland wheat & barley. Lewis & Clark camped near Kamiah spring 1806. Median HH income ~$51,615. Homeownership ~76.4%. No local ordinances. 3-day nonpayment notice. No deposit cap; 21-day return. No rent control. 2nd JD, 510 Oak St, Nez Perce, (208) 937-2661.
Lewis County
Screen Before You Sign
Best profiles in Kamiah: St. Mary’s Hospital healthcare staff (stable year-round income); Kamiah School District teachers and staff; county government employees; established Clearwater River valley retirees with fixed income (verify Social Security, pension, or retirement account documentation). Best profiles in Nez Perce/Craigmont: county administrative staff; school district employees; established farm operators with documented income. For agricultural workers: verify year-round vs. seasonal status; request multi-year income documentation for dryland farming income that varies year to year. 3x income-to-rent minimum. Run Idaho court records.
Camas Prairie Country: Landlording in Lewis County, Idaho
Lewis County is an easy place to overlook on a map of Idaho. At 480 square miles, it is the fourth smallest Idaho county by land area. With 3,533 residents at the 2020 census, it is the fourth least populous. Its county seat, Nez Perce, has fewer than 700 people. The county was not even established until 1911 — one of the last Idaho counties to be carved from Nez Perce County, and named for Meriwether Lewis of the Lewis and Clark Expedition that had passed through this same valley more than a century earlier. Idaho Code §§ 6-301 et seq. governs all residential tenancies here.
What Lewis County lacks in size and population, it compensates for in historical depth. The Camas Prairie that covers much of the county’s upland has been occupied by Nez Perce people for more than 8,000 years. The annual camas harvest in spring was one of the great subsistence events in the plateau region, drawing bands from across the area to dig the sweet bulbs that were a staple food source. Lewis and Clark’s Corps of Discovery passed through the Clearwater River valley in October 1805, and the expedition camped near present-day Kamiah for a full month in spring 1806 while waiting for the mountain snow to recede before their return east. The Clearwater River where they built their canoes forms Lewis County’s eastern boundary today.
The Nez Perce Reservation and the 1895 Opening
Most of Lewis County’s land area falls within the original boundaries of the Nez Perce Indian Reservation established by the Treaty of 1855. In November 1895 — just two weeks after President Cleveland signed the proclamation — the reservation was opened for non-Native homestead settlement in a process described by Wikipedia as similar to the Oklahoma land openings. White settlers poured in, establishing towns like Winchester (1896) and Craigmont (from 1898). Within a decade, the railroad’s arrival and the Camas Prairie’s agricultural potential had established the basic settlement pattern that Lewis County still reflects today. Despite the reservation geography, Native Americans now make up less than 6% of the county’s population, and most of the land is privately owned by non-Native families whose ancestors homesteaded a century ago. Some parcels remain in tribal trust status, and landlord-tenant matters on trust land involve jurisdictional questions beyond Idaho state law.
Kamiah: The County’s Commercial Hub
Kamiah, on the Clearwater River at the county’s eastern edge, is Lewis County’s largest city and practical commercial hub. Sitting at a notably lower and warmer elevation than the Camas Prairie uplands, the Clearwater River valley around Kamiah enjoys a more favorable climate that has made it attractive to retirees seeking Idaho’s outdoor amenities without the harsh winters of higher-elevation communities. St. Mary’s Hospital serves both Lewis County and much of Clearwater County to the east, providing the county’s most stable professional employment base. The Kamiah School District adds teachers, administrators, and support staff who represent the kind of reliable, year-round employment that makes for strong tenant candidates in a small-county rental market.
Filing Evictions in Lewis County
The Lewis County District Court at 510 Oak Street in Nez Perce serves the Second Judicial District. Main: (208) 937-2661; General: (208) 937-2451. Hours are Monday through Friday, 8:00 a.m. to 5:00 p.m. In a county this small, the courtroom and its officers are well known to most residents. Landlords who maintain written leases, properly serve all required notices, and document unit conditions at move-in and move-out will find Idaho’s 3-day notice and Unlawful Detainer process straightforward even in this intimate rural setting.
Lewis County landlord-tenant matters governed by Idaho Code §§ 6-301 et seq. (evictions), §§ 6-320 and 6-321 (security deposits), and §§ 55-208 and 55-307 (tenancy and notice). Nonpayment: 3-day pay or vacate. Lease violation: 3-day perform or quit. No-cause termination (month-to-month): 30-day written notice. Security deposit: no cap; return within 21 days (up to 30 if lease specifies); 3x penalty for improper handling. No rent control (Idaho Code § 55-304). No local landlord-tenant ordinances. Eviction: Unlawful Detainer at Lewis County District Court (2nd Judicial District), 510 Oak St, Nez Perce, ID 83543; Main (208) 937-2661; General (208) 937-2451; Mon–Fri 8am–5pm. 72-hour post-judgment vacate; Writ of Possession if tenant remains. Consult a licensed Idaho attorney before taking legal action. Last updated: May 2026.
Disclaimer: This page provides general information about landlord-tenant law in Lewis County, Idaho and is not legal advice. Laws change frequently. Always verify current requirements with a licensed Idaho attorney before taking legal action. Last updated: May 2026.
