# Sign Regulations in Isleton, California

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

- **Jurisdiction:** Isleton, California (CA)
- **Canonical page:** https://permitpal.io/sign-regulations/california/isleton
- **Data last verified:** 2025-03-26
- **Source:** [municode municipal code](https://library.municode.com/CA/Isleton/codes/Code_of_Ordinances?nodeId=APXAZOCO_ART12HOOCTESUSISAOFMOHOPASIOUADSTMASEHOUN)

## At a glance

Isleton, California regulates 9 sign types across 4 zoning districts. A-board Signs in the General Regulations For All Zones zoning district are capped at 5 feet tall and 3 feet wide (Sec. Sec. 1204.B.14). Most commercial signs in Isleton require a permit.

## Sign rules by zoning district (4 zones)

| Zoning District | Sign Types Regulated | Max Height | Max Area | Permit Required |
| --- | --- | --- | --- | --- |
| General Regulations For All Zones | 4 | 5 feet | 600 square feet | — |
| RCO, UR, R, RM | 3 | — | 16 square feet | — |
| C, CC | 2 | — | 350 square feet | — |
| Industrial (I) Districts | 2 | — | 600 square feet | — |

## Zone-by-zone sign requirements (sample of 3 of 4 zones)

### General Regulations For All Zones

| Sign Type | Max Height | Max Area | Max Width | Setback | Signs Allowed | Location | Permit Required | Ordinance Citation |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Freestanding Sign | — | 600 square feet | — | — | One per parcel | Not extending beyond property line | — | Sec. 1204.B.3.a |
| Directional Sign | — | 6 square feet | — | — | — | Driveways or parking lots | — | Sec. 1204.B.4 |
| Temporary Sign | — | — | — | — | — | — | — | Sec. 1204.B.8 |
| A-board Sign | 5 feet | — | 3 feet | — | One per business | Property of the business or sidewalk fronting property | — | Sec. 1204.B.14 |

### RCO, UR, R, RM

| Sign Type | Max Height | Max Area | Max Width | Setback | Signs Allowed | Location | Permit Required | Ordinance Citation |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Name Plate | — | 2 square feet | — | — | One per residence or office | Affixed to dwelling | — | Sec. 1204.C.1 |
| Non-residential Identification Sign | — | 16 square feet | — | — | One per site | Flat against wall | — | Sec. 1204.C.2 |
| Temporary Construction Sign | — | 16 square feet | — | — | One per site | Site of construction project | — | Sec. 1204.C.6 |

### C, CC

| Sign Type | Max Height | Max Area | Max Width | Setback | Signs Allowed | Location | Permit Required | Ordinance Citation |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Wall Sign | — | 350 square feet | — | — | — | Attached to building | — | Sec. 1204.D.7 |
| Freestanding Sign | — | 350 square feet | — | — | One per site | Single site | — | Sec. 1204.D.9 |

## Prohibited signs in Isleton

- No sign or outdoor advertising structure shall be placed within 30 feet of the intersecting curb lines of a street intersection, unless placed on a single pole with a ground clearance of at least ten feet, or unless placed so that the top of the sign and its supporting structure is a maximum of 2½ feet above the ground.
- No red, green or amber lights or illuminated signs or outdoor advertising structures illuminated by or including flashing lights, shall be placed in such position that they reasonably could be expected to interfere with or be confused with any official traffic control device, traffic signal or official directional guide sign.
- Animated signs, the movement of which is simulated by variations in the intensity, color, pattern or illumination of the sign, and flashing signs, shall be prohibited in all districts.
- No red, green, or amber light or illuminated sign may be placed in such a position that it could reasonably be expected to interfere with, or be confused with, any official traffic control device, traffic signal, or official directional guide sign.
- Outdoor advertising structures of a permanent nature shall not be permitted.
- Glaring, flashing, and scintillating signs shall not be permitted.
- Open letter signs which may be viewed from the reverse shall not be permitted.
- Canvas, plastic, cloth, paper, or other types of banners or streamers suspended across public or private property, buildings or structures shall not be permitted, except temporary banners which extend over or across a street announcing civic events such as parades, homecomings, festivals and publicly or privately sponsored promotional events as may be approved by the city council.
- Portable signs, including, but not limited to, tire stack, shall be prohibited.

## Signs exempt from permit in Isleton

- Signs used exclusively for the posting or display of official notices by a public agency or official, or by a person giving legal notice.
- Signs erected or maintained by a public agency or official or required by law to be displayed by a public utility for directional, warning or informational purposes.
- Temporary signs or displays of an emergency, patriotic, religious or community nature, including temporary, non-structural posters for civic or political campaigns and non-illuminated, non-verbal religious symbols.
- Signs announcing garage or yard sales shall be removed immediately after the completion of the sale.

## Sign plan & submission notes

- Permanent signs and all signage other than temporary must be reviewed and approved by the planning commission.
- Applications for mobile home parks shall be subject to site plan review under the provisions of article 15.
- The planning commission has the authority to modify or adjust regulations of this article in order to prevent or lessen practical difficulties or unnecessary physical hardships inconsistent with the objectives of the zoning ordinance and the purpose of this section.

## Full detail

This page publishes an overview of every zoning district plus a sample of 3 districts in full. Complete zone-by-zone requirements for all 4 zoning districts in Isleton — every sign type, every field — are available with a free PermitPal account: https://app.permitpal.io/?address=Isleton+CA&override=true&utm_source=landing&utm_medium=city-page&utm_campaign=city-isleton

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