City Administration

This image has an empty alt attribute; its file name is Sean-Grayson-Rialto-Fire-Division-Chief-725x1024.jpegInterim City Administrator

Sean Grayson

In December of 2018, Sean Grayson was appointed to serve as the Interim City Administrator by the Rialto City Council.  Sean’ regular assignment is as the Fire Chief for the City of Rialto.  He came to the City of Rialto five years ago after twenty years of public service in Northern California.  Sean’s assignment as Rialto’s new Interim City Administrator will continue until the recruitment for the permanent City Administrator is completed.


City Wide Business Hours

Monday – Thursday | 7:00 am to 6:00 pm

Closed Every Friday and Holidays | View City Calendar for special dates


Ceremonial Documents Request Procedures
• City Administrator Monthly Update
• City Organizational Chart
• City Goals and Objectives
• Contact Information
• Employment Agreement
• Guiding Principles and Community Values

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