# Sign Regulations in St. Clair, Missouri

Sign permit rules, size and height limits, setbacks, and ordinance citations for St. Clair, Missouri, compiled by PermitPal from the jurisdiction's published municipal code.

- **Jurisdiction:** St. Clair, Missouri (MO)
- **Canonical page:** https://permitpal.io/sign-regulations/missouri/st-clair
- **Data last verified:** 2025-05-08

## At a glance

St. Clair, Missouri regulates 3 sign types across 2 zoning districts. Off-Premises Sign or Billboards in the C-2, C-3, C-4, I-1, I-2 zoning district are capped at 35 feet tall, 1,200 square feet, and 60 feet wide, with a At least 50 feet from right-of-way, property lines, and roofed structures setback (Sec. Sec. 19½-23 (1)-(13)). Most commercial signs in St. Clair require a permit.

## Sign rules by zoning district (2 zones)

| Zoning District | Sign Types Regulated | Max Height | Max Area | Permit Required |
| --- | --- | --- | --- | --- |
| General Regulations For All Zones | 2 | — | 4 square feet | — |
| C-2, C-3, C-4, I-1, I-2 | 1 | 35 feet | 1,200 square feet | — |

## Zone-by-zone sign requirements

### General Regulations For All Zones

| Sign Type | Max Height | Max Area | Max Width | Setback | Signs Allowed | Location | Permit Required | Ordinance Citation |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Garage Sale Sign | — | 4 square feet | — | — | Two signs permitted | On the property of the residence where the garage sale is being conducted | — | Sec. 13-98 (a)(1), (c) |
| Directional Garage Sale Sign | — | 2 square feet | — | — | Three signs permitted | Premises not on a major thoroughfare, with written permission from property owners | — | Sec. 13-98 (a)(2) |

### C-2, C-3, C-4, I-1, I-2

| Sign Type | Max Height | Max Area | Max Width | Setback | Signs Allowed | Location | Permit Required | Ordinance Citation |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Off-Premises Sign or Billboard | 35 feet | 1,200 square feet | 60 feet | At least 50 feet from right-of-way, property lines, and roofed structures | — | Within 660 feet of the nearest edge of the right-of-way of any interstate or primary highway | — | Sec. 19½-23 (1)-(13) |

## Prohibited signs in St. Clair

- No revolving or rotating beam or beacon of light that simulates any emergency light or device shall be permitted as part of any sign.
- No flashing, intermittent, or moving light or lights will be permitted except scoreboards and other illuminated signs designating public service information.
- No sign shall be so illuminated that it interferes with the effectiveness of, or obscures, any official traffic sign, device, or signal.
- No sign shall be located in such a manner as to obstruct or otherwise physically interfere with the effectiveness of any official traffic sign, signal or device or obstruct or physically interfere with a motor vehicle operator's view of approaching, merging or intersecting traffic.
- Direct access to off-premises signs or billboards from curb cuts along a primary highway, interstate highway or service road shall be prohibited.

## Signs exempt from permit in St. Clair

- Directional or other official signs, or those advertising the sale or lease of property, or those which advertise activities on the property on which they are located, including products sold, are exempt from spacing provisions.

## Sign plan & submission notes

- Before a permit is issued, the applicant shall receive approval of a site plan for location, landscaping, billboard lighting and fencing around the proposed off-premises sign or billboard.
- Such plans shall be reviewed and approved by the planning and zoning commission.
- The applicant for a permit shall present documentation to the reasonable satisfaction of the building inspector and city administrator that the applicant has secured the legally enforceable right to prevent the erection of structures within the setback zones.

## Full detail

Complete sign requirements for St. Clair, including every field PermitPal tracks for each sign type, are available with a free PermitPal account: https://app.permitpal.io/?address=St.+Clair+MO&override=true&utm_source=landing&utm_medium=city-page&utm_campaign=city-st-clair

---

PermitPal — AI sign code research. Full HTML page: https://permitpal.io/sign-regulations/missouri/st-clair