Sign Regulations in Blue Earth County, MN (2026)
4 rules for unincorporated Blue Earth County, Minnesota.
Verified from official government sources
Political Signs
Campaign signs for candidates seeking public political office in unincorporated Blue Earth County need no sign permit, but section 24-311(d)(5) caps each sign at eight square feet, restricts placement to private property, and bars locating them at intersections where they would block drivers' sight lines.
Blue Earth County Political Sign Size Limit
Light RestrictionsBlue Earth County Code § 24-311(d)(5)
Exempted signs; no permit required. The following signs need no permit, but shall conform to the requirements of this section: ... (5)Signs designating candidates seeking public political office, provided that such election sign shall not exceed eight square feet in size. Such signs shall be located on private property and shall not be located on any intersection so as to obstruct vehicular lin...
Digital Billboards
Unincorporated Blue Earth County prohibits any sign with a rotating beam or flashing illumination, and separately bans rotating signs outright, under section 24-311(e). The rule reaches digital and electronic billboard displays that flash, scroll with animated beams, or physically rotate, county-wide outside Mankato and the county's other cities.
Blue Earth County Bans Flashing, Rotating Signs
Heavy RestrictionsBlue Earth County Code § 24-311(e)(5), (e)(10), (i)(2)
Prohibited signs. The following signs are prohibited: ... (5)Signs with rotating beam or flashing illumination. ... (10)Rotating signs. ... Off-premises signage shall meet the following standards:a.Shall not exceed 700 square feet in total area. Maximum allowable signage shall be computed on the basis of one side of any double-faced sign.b.Shall not exceed 30 feet in height, measured from stree...
Window Signs
Signs or posters attached to or painted on the inside of a display window need no sign permit anywhere in unincorporated Blue Earth County, under section 24-311(d)(6), including illuminated window signs, though flashing window displays remain barred.
Blue Earth County Window Sign Permit Exemption
Few RestrictionsBlue Earth County Code § 24-311(d)(6)
Exempted signs; no permit required. The following signs need no permit, but shall conform to the requirements of this section: ... (6)Signs or posters attached or painted on the inside of a display window. This shall include illuminated signs, but not flashing signs.
Freeway-Facing Signs
Commercial and industrial signs meant to be seen from an elevated four-lane highway in unincorporated Blue Earth County can rise above normal district height limits, up to 15 feet, under section 24-311(f)(4), if they sit within 200 feet of the highway right-of-way and identify a highway-oriented business.
Blue Earth County Elevated Freeway Sign Height Rule
Some RestrictionsBlue Earth County Code § 24-311(f)(4)
Elevated signs. In all commercial or industrial zones, the height of any freestanding or pole signs which are intended to be viewed from an elevated four lane highway which identifies highway-oriented businesses and which signs are to be located within 200 feet of the highway right-of-way line may exceed district height standards, provided that the maximum height to the top of the sign shall no...
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