When we talk about something that happens or exists throughout an entire city, we often use the word "citywide". However, there are many other words that can be used interchangeably with it. "Municipal" is a great option, since it refers to things related to the local government and administration of a city. Additionally, "metropolitan" can be used to describe something that takes place not just within a single city, but across an entire urban area. "Urban" and "cosmopolitan" are two more excellent alternatives that emphasize the bustling energy and diversity of city life. Ultimately, there are many different words that can be used to describe the wide-ranging impact of events and changes within a city, each of which bring their own nuances and connotations to the table.