Welcome to SMC District Lines

SMC District Lines is a free, user-friendly redistricting website for the County of San Mateo. Map your own district proposals or draw the boundaries of your Community of Interest.

SMCDistrictLines.org was created to bridge the gap that community groups have traditionally faced when it comes to redistricting. This website puts the power of maps, data and line drawing directly in your hands. It will help you take a seat at the table in the San Mateo County Board of Supervisors boundary adjustment process of current district lines.

Free interactive mapping tools

Draw a proposed district or a Community of Interest while viewing key data.

Access a library of existing and proposed districts.