* Sounds in the word "Chico": There are four sounds in the word "Chico."
* "Ch" is one sound
* "i" is one sound
* "c" is one sound
* "o" is one sound
* Sounds in the city of Chico, California: This is much harder to quantify! There are thousands of sounds happening in Chico at any given time, from traffic to birds to conversations. It's impossible to count them all.
* Sounds in the human language "Chico": If "Chico" refers to a language, this would require research on the specific language's phonemic inventory (distinct sounds).
Could you please clarify what you're asking about?