Lewis County property tax due dates

Lewis County, ID follows the Idaho statutory schedule. This page shows that schedule, the county's own website, and the late penalty — the county can still set its own dates, so confirm before you pay.

Statewide schedule — read this before you rely on it

Late charges and interest accrue on any half not paid by its date, December 21 for the first half and June 21 for the second.

County treasurers mail notices after the property roll is delivered in the fall, with the first half due December 20.

Lewis County at a glance

• Population: 3,739 (Census estimate, 2023) — the 41st largest of 44 Idaho counties and county equivalents.
• Typical tax bill: $1,295 a year (median for owner-occupied homes, ACS 2022 5-year estimate) — the Idaho median is $1,872.
• Land area: 478.8 sq mi, about 7.8 people per sq mi.
• County government: lewiscountyid.us.

How to pay Lewis County property tax

• County website: lewiscountyid.us — start here for the treasurer or tax collector page.
• By post: mail to the county treasurer; the postmark usually counts, not the arrival date.
• In person: the treasurer's office, with your bill or parcel number.
• Escrow: if your mortgage escrows taxes, the servicer pays — you still owe any shortfall.

Is this county verified?

Not yet. Lewis County is on the queue: we publish a county's own published dates once they have been checked against the county website. Ask for it and it moves up. Until then, the Idaho statutory schedule above is the reliable starting point.

Larger Idaho counties nearby

More in Idaho

See all Idaho counties, or every upcoming deadline we track. If the bill is already a problem, read what happens if you don't pay and how to appeal an assessment.

StacyApproved is an independent reference and is not a government agency. Deadlines change and exceptions apply — always confirm with your county treasurer using the official link on this page. Nothing here is tax, legal or financial advice.