Home / State posting laws / Idaho
Idaho Posting Laws: How to Post Land
Idaho lets you post land with signs or with bright orange paint. The statute covers property corners and the places where land meets navigable streams, roads, gates and rights-of-way. It sets no spacing number and no mark size. This guide explains what that means and how to use it.
What the law asks for on signs
Idaho Code 18-7008(2)(a)(iii)-(iv) does not set a letter height, a minimum sign size, a spacing number or an owner-name rule in the parts we read. Without numbers to follow, the sensible approach is to put signs where people would enter.
Orange paint instead of purple
Idaho has no purple paint rule. Bright orange or fluorescent paint is an alternative to signs, at property corners and boundaries where the property meets navigable streams, roads, gates and rights-of-way. The statute gives no mark size or spacing, so keep your marks large and easy to see.
Hunting land and permission
Section 36-1603 requires written permission forms for hunting on private land in certain cases. Forms are available from Fish and Game, and a landowner is not limited to the department form. Fenced, cultivated land is covered by separate clauses, so read the statute for your land.
Practical tips
Since there is no spacing number, mark every corner, gate and road entry first, then fill in along the edge. Repaint orange marks when they fade and replace sun-bleached signs. Photograph each sign and mark with the date.
Questions about posting land in Idaho
Can I use orange paint to post land in Idaho?
Yes. Idaho Code 18-7008 allows bright orange or fluorescent paint as an alternative to signs, at property corners and boundaries where the property meets navigable streams, roads, gates and rights-of-way. The statute gives no mark size or spacing.
Does Idaho require a certain sign size or spacing?
Not in the sections we read. Section 18-7008 sets no sign size, letter height, spacing or owner-name rule. Place signs at corners, gates, roads and other places people enter, and read the current text.
Do hunters need written permission in Idaho?
Section 36-1603 requires written permission forms for hunting on private land in certain cases. Forms come from Fish and Game, but a landowner is not limited to the department form. Check the statute for when it applies.
This guide explains the law in plain words; it is not legal advice. We read the statute text on 2026-10-24. Laws change: check the current text here or ask your county or state wildlife agency.