* No official count: There's no official census or registry tracking every language spoken in the US.
* Diverse population: The US is a nation of immigrants, with people from all over the world bringing their languages.
* Dialects and variations: Within a single language, there can be numerous dialects and variations, making it difficult to draw a clear line.
* Emerging languages: New languages are constantly emerging through creolization and other processes.
However, we can look at some estimates:
* The US Census Bureau estimates that over 350 languages are spoken in the US.
* The Ethnologue, a database of languages, lists over 150 languages spoken in the US.
It's important to remember: These are just estimates, and the actual number is likely much higher.