IMPORTANT UPDATE, RED FLAG WARNING & INTERMITTENT POWER OUTAGES:  Tuesday, Nov. 13, 2018 - 3: 15 pm - There are NO current emergencies in the City of San Marcos. With high Santa Ana winds and red flag warnings in place, residents can expect intermittent power outages throughout San Marcos and County of San Diego through Wednesday, Nov. 14 as SDG&E takes steps to keep communities safe from wildfire. Follow San Diego Gas & Electric and visit for the latest updates. To prepare, San Marcos Fire Department and the County of San Diego are recommending residents take a “Ready, Set, Go!” approach for peak fire season. To learn how you can prepare, visit

Interactive Maps

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GIS Maps and Services

The City of San Marcos offers several different ways to access mapping information about our community and City services. We are pleased to offer this resource to you and welcome any suggestions at

Every effort has been made to assure the accuracy of the maps and data provided; however, some information may not be accurate or current. The City of San Marcos assumes no responsibility arising from use of this information and incorporates by reference its disclaimer regarding the lack of any warranties, whether expressed or implied, concerning the use of the same.

PDF Map Gallery

The PDF Map Gallery contains commonly requested PDF maps that can be viewed online, downloaded, and/or printed for your use. These maps require Adobe Acrobat Reader.


Interactive Map Gallery

The Interactive Map Gallery is a collection of easy-to-use web maps for the community of San Marcos.