Boone County, IN Sign Regulations: Window Signs (2026)

Section 157.038(B)(4) sets the baseline construction standard for signage countywide: outside of a listed exception, all signs shall be constructed of permanent materials and shall be permanently attached to the ground, building or another structure by direct attachment to a rigid wall, frame or structure, and every sign must also comply with the Building and Electrical Codes. Subsection (4)(b) then carves out banners, flags and window signs from that permanent-materials rule, so long as they conform in all other respects with the chapter's requirements, meaning a paper or vinyl sign taped or hung inside a storefront or house window is not held to the same permanent-attachment standard as a monument or wall sign.

That exemption is narrow: it addresses how the sign is built, not how big it can be or whether it needs a permit. A window sign still has to be counted toward the lot's overall permitted sign area under Table 11 and Table 8's frontage formula, and it still falls under the general permit, non-conforming-sign and violation provisions in § 157.038(B)(8) through (11) if it is not otherwise exempt. Boone County's Table 11 sign schedule does not list a separate line item exclusively for window signs, so a window sign is regulated as whichever sign type it functions as, most often an incidental or wall-mounted sign, once the construction-material exemption is set aside.