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Sign Regulations in Colorado (2026)

89 rules on the books across Colorado, 26 cities and counties. Select a rule to read the full details.

Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions

Political Signs

Rules for posting political campaign signs on your property, including size limits, how early you can put them up, and when they must come down.

Colorado: statewide

StatewideFew Restrictions

Colorado state law prohibits homeowner associations from banning political signs on member property during election…

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Adams County

Some Restrictions

Adams County regulates political signs content-neutrally as temporary signs. On residential lots one temporary sign up…

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Boulder County

Some Restrictions

In unincorporated Boulder County, political and other noncommercial signs are allowed anywhere a commercial sign is…

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Castle Rock

Some Restrictions

In residential Castle Rock you may place one sign on your own property, no larger than 6 square feet and no more than 4…

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Douglas County

Some Restrictions

In unincorporated Douglas County, political signs are regulated content-neutrally as temporary signs. They need no…

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Fort Collins

Some Restrictions

Fort Collins treats political yard signs the same as any other temporary yard sign: the Sign Code is expressly…

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Jefferson County

Some Restrictions

Jeffco's sign code is content-neutral: political/campaign signs are regulated as "Temporary Ground Signs." Up to six…

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Lakewood

Some Restrictions

Lakewood's Zoning Ordinance dropped its old political-sign category to comply with Reed v. Gilbert; a political message…

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Larimer County

Some Restrictions

Election signs need no permit in unincorporated Larimer County and may be placed for 60 days before an election. On…

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Littleton

Some Restrictions

Littleton doesn't license political signs separately: it regulates every sign by structure and size, not by message…

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Arapahoe County

Light Restrictions

Arapahoe County's Land Development Code treats political and campaign signs the same as any other temporary sign: no…

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Aurora

Light Restrictions

Aurora has no separate political-sign permit. Its Unified Development Ordinance lets any lawfully permitted sign swap…

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Boulder

Light Restrictions

Boulder treats a political sign as a noncommercial sign exempt from standard area and setback limits, but caps it at…

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Denver

Light Restrictions

Denver treats political signs as noncommercial signs: no permit needed on residential lots, but they're capped at 15…

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Greeley

Few Restrictions

Election, ideological, and real estate signs are the only sign types Greeley allows on vacant lots without a primary…

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Weld County

Few Restrictions

Weld County's sign code is content-neutral, so political yard signs follow the same limits as other signs. Each lot may…

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Garage Sale Signs

Where you can place signs advertising a garage or yard sale, including restrictions on utility poles, medians, and public right-of-way.

Adams County

Some Restrictions

Garage-sale signs fall under Adams County's content-neutral temporary sign rule: up to 32 sq ft, on private property…

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Boulder County

Some Restrictions

Boulder County's Land Use Code (Article 13) does not exempt garage-sale signs generally; temporary signs must meet the…

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Castle Rock

Some Restrictions

Garage-sale signs may not be placed in the public right-of-way at any time in Castle Rock. Right-of-way signs…

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Centennial

Some Restrictions

Garage sale signs in Centennial are regulated as Yard Signs: no permit or cap on quantity, but each sign is capped at 6…

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Colorado Springs

Some Restrictions

Colorado Springs treats a garage-sale sign as a "Short Term Sign" under Table 7.4.13-E: no permit needed, but it must…

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Denver

Some Restrictions

Denver limits yard and garage sales to 72 hours, one per half-year, and requires all signs and other external evidence…

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Douglas County

Some Restrictions

Garage sale signs are temporary signs in unincorporated Douglas County: no permit is needed, but they must be on…

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Jefferson County

Some Restrictions

Jeffco has no separate garage-sale sign category; they fall under content-neutral "Temporary Ground Signs." Up to six…

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Larimer County

Some Restrictions

Small temporary signs like garage-sale signs are generally exempt from a permit under Section 10.5 of the Larimer…

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El Paso County

Light Restrictions

Temporary signs in El Paso County's residential zoning districts, including yard and garage sale signs, need no permit…

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Mesa County

Light Restrictions

Mesa County treats a garage-sale sign as an exempt temporary sign: no permit needed if it isn't illuminated or…

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Westminster

Light Restrictions

Westminster names garage sale signs as a no-permit incidental sign, but limits how long a temporary freestanding sign…

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Weld County

Few Restrictions

Garage-sale signs in unincorporated Weld County fall under the general small-sign allowance: up to five signs of up to…

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Holiday Displays

Rules for seasonal decorations, lights, inflatables, and lawn displays, including the sign-permit exemptions most codes give them and any limits on timing, size, or placement.

Longmont

Heavy Restrictions

Longmont's sign code flatly prohibits inflatable signs -- balloons, inflatable figures, and similar fluttering or…

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Colorado Springs

Significant Restrictions

Colorado Springs treats inflatable displays as temporary signage, not decoration. Under City Code § 7.4.1307.E.3, a…

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Aurora

Some Restrictions

Aurora caps any inflatable, balloon, or similar device over 20 inches to 72 straight hours and once per year, no permit…

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Denver

Some Restrictions

Denver exempts holiday decorations from outdoor advertising device permits, but only if displayed no more than 60…

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Greeley

Some Restrictions

Balloons and inflatable displays with text or graphics under 33 square feet count as temporary signs and need a city…

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Arapahoe County

Light Restrictions

Arapahoe County's Land Development Code bans exposed 'light bulb strings and exposed tubing', festoons, strings of…

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Fountain

Light Restrictions

Fountain's Fire Code caps decorative holiday lighting at 45 days of installation, extending to 90 days for apartment…

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Lakewood

Light Restrictions

Lakewood exempts decorative holiday light displays from a sign permit, but caps how long they can stay up: 60…

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Littleton

Light Restrictions

Littleton exempts holiday lighting from its outdoor lighting standards only during November, December and January. City…

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Loveland

Light Restrictions

Loveland does not require a sign permit for seasonal decorations, so holiday lights and displays can go up without City…

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Arvada

Few Restrictions

Arvada exempts holiday decorations from two of its toughest sign rules: the citywide ban on animated lighting and the…

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Centennial

Few Restrictions

Centennial exempts holiday lighting from its exterior lighting standards as long as it stays up no more than 90 nights…

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El Paso County

Few Restrictions

El Paso County exempts holiday decorative lighting entirely from its outdoor lighting standards, allowing any type…

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Mesa County

Few Restrictions

Mesa County exempts temporary holiday decorations and displays from its sign permit requirements, letting property…

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Digital Billboards

Rules governing digital and electronic billboards, including size limits, brightness and dwell-time standards, and the ongoing legal fight in cities like LA.

Boulder

Heavy Restrictions

Boulder's sign code bans off-premises billboards outright: Section 9-9-21(b)(3)(H) prohibits any commercial sign that…

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Colorado Springs

Heavy Restrictions

Colorado Springs' sign code has no digital-billboard track: Section 7.4.1308.C bans any sign whose digital message…

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Denver

Heavy Restrictions

Denver's zoning code bars new LED message surfaces on outdoor advertising billboards, grandfathering only devices with…

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Fort Collins

Heavy Restrictions

Fort Collins bans billboards outright, digital or otherwise, along with all permanent off-premises signs, under Section…

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Littleton

Heavy Restrictions

Littleton prohibits billboards outright citywide, and in the Downtown Main Street, Transition, Mixed-Use and…

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Manitou Springs

Heavy Restrictions

Manitou Springs outlaws digital, animated and flashing signs citywide under its Land Use and Development Code. Any…

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Westminster

Heavy Restrictions

Westminster bans billboards outright, so a new off-premise digital billboard cannot be permitted anywhere in the city…

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Arapahoe County

Significant Restrictions

Billboards are banned outright in every zoning district of unincorporated Arapahoe County, and that ban extends to…

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Arvada

Significant Restrictions

Arvada has no separate billboard category: digital displays are regulated as electronic message centers under LDC…

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Douglas County

Significant Restrictions

Douglas County allows electronic message signs only in place of a freestanding sign, one per parcel, capped at 50…

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El Paso County

Significant Restrictions

New electronic message display billboards in unincorporated El Paso County need a Board of County…

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Greeley

Significant Restrictions

Greeley restricts digital "EMD" signs to commercial, industrial, PUD and institutional-use sites, capping them at 50%…

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Longmont

Significant Restrictions

Longmont allows digital/electronic message signs only as part of a freestanding monument sign in specific mixed-use and…

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Pueblo

Significant Restrictions

Pueblo caps electronic message signs at 10,000 NITs by day and 5,000 by night, bans them within 100 feet of homes, and…

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Weld County

Significant Restrictions

Weld County only allows electronic message displays, its term for digital billboards, in Commercial and Industrial…

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Aurora

Some Restrictions

Aurora caps electronic message boards at 50% of a monument sign face, bans scrolling or flashing, and requires…

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Centennial

Some Restrictions

Centennial caps digital billboard brightness at 0.3 foot-candles above ambient light, measured with a calibrated meter…

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Fountain

Some Restrictions

Fountain has no separate digital-billboard category; the operative rule is the electronic message center (EMC) standard…

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Lakewood

Some Restrictions

Lakewood's zoning code allows on-site electronic message signs on larger lots but caps copy changes to once every 8…

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Loveland

Some Restrictions

Loveland, Colorado caps electronic message center (EMC) displays at 50% of a sign's face, or 60% within the I-25…

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Mesa County

Some Restrictions

Mesa County caps digital and electronic sign brightness at 0.3 footcandles over ambient light, bans interactive…

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Window Signs

Limits on the percentage of window area that may be covered by signs in storefronts, including transparency rules for safety visibility into businesses.

Arvada

Some Restrictions

Arvada caps how much of a storefront window can be covered with signs under Table 6-1-5-1B: up to 25 percent of any…

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Aurora

Some Restrictions

In Aurora, Colorado, window signs are capped at 50% coverage per window pane citywide, dropping to 25% in the MU-OA-MS…

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Boulder

Some Restrictions

Boulder exempts small window signs from a sign permit, but only within limits: Section 9-9-21(c)(1)(L) allows a…

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Centennial

Some Restrictions

Centennial caps window signage by requiring 50% to 80% window transparency, depending on zone district, instead of a…

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Colorado Springs

Some Restrictions

Window signs in Colorado Springs can't cover more than 25% of the window area they're displayed in, under Table…

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Denver

Some Restrictions

Temporary window signs in Denver can't exceed 60 percent of ground-level window area or 50 percent of the zone lot's…

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Douglas County

Some Restrictions

Douglas County caps window signs at six square feet each and ties the number allowed per business to the length of the…

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Fort Collins

Some Restrictions

A Fort Collins window sign under six square feet needs no sign permit as long as it covers no more than 25 percent of…

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Fountain

Some Restrictions

Fountain limits how much of a storefront window a sign can cover. Fountain Municipal Code § 17.12.060(K) caps any sign…

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Greeley

Some Restrictions

Window signs are allowed in Greeley but can cover no more than 25 percent of any individual window pane's glass surface…

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Lakewood

Some Restrictions

Window signs in Lakewood, Colorado are exempt from the sign permit process but still capped at 25 percent of the…

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Loveland

Some Restrictions

Loveland, Colorado caps window signage under UDC Table 18.04.08.10.B: up to 25% of an architecturally distinct window…

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Manitou Springs

Some Restrictions

Window and door signs in Manitou Springs cannot cover more than 25% of the glass area on any street-facing façade, and…

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Pueblo

Some Restrictions

In Pueblo's Commercial Charter Neighborhood district, window signs can cover only 20% of the window they're mounted on…

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Arapahoe County

Light Restrictions

In unincorporated Arapahoe County, signs placed in or on a window or the glass part of a door don't need a sign permit…

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El Paso County

Light Restrictions

Temporary window signs covering less than 50 percent of the window surface don't need a sign permit in unincorporated…

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Littleton

Light Restrictions

Littleton exempts small display window signs under four square feet from a sign permit citywide, while downtown window…

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Longmont

Light Restrictions

Longmont exempts window signs from a sign permit, but caps them at 25% of a window opening, or 50% of any single panel…

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Westminster

Light Restrictions

Westminster lets any property post window signs without a permit, but caps the total sign area at 30 percent of the…

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Mesa County

Few Restrictions

Mesa County excludes window signs incorporated with a window display from a property's total sign allowance, so…

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