Airport Noise Contours

THIS LAYER IS OWNED AND MAINTAINED BY LOS ANGELES COUNTY VIA THE LA COUNTY OPEN DATA PORTAL This layer defines the areas surrounding Los Angeles County airports that are subject to a range of decibel levels in a 24-hour weighted average noise level known as Community Noise Equivalent Level (CNEL). Please click here to see the Los Angeles County Airport Land Use Commission portion of our website for maps and documents. You can also review the following document from the State of California for further information: California Airport Land Use Planning Handbook. Some of the airports, such as LAX, and Burbank, have periodic updates of their noise contours. All airport layers can be seen and interacted with together in our A-NET GIS web mapping application - click here. UPDATE: 6/15/2020 - Long Beach Airport per Quarterly Noise Monitoring Report 1st Quarter 2020.