C# - SQL To Filter A SubSet Of Data?

I have an arraylist that holds a subset of names found in my database. I need to write a query to get a count of the people in the arraylist for certain sections i.e. There is a field "City" in my database from the people in the arraylist of names I want to know how many of them live in Chicago, how many live in New York etc.

how I might set up an sql statement to handle this. I think somehow I have to pass the subset of names to sql somehow.

Here is a sample how I am writing my sql in my code

Public Shared Function GetCAData(ByVal employeeName As String) As DataTable
Dim strQuery As String = "SELECT EMPLID, EMPLNME, DISP_TYPE, BEGIN_DTE FROM Corr WHERE (EMPLNME = @name)"

[Code]....

I need a way to create a function using your sql statement to return a datatable object of names and the parameters would be city, and the List of names.

The above example isnt the sql I am looking for its just a skeleton of what the function would look like that I want to create.

So then you would use the function by iterating through all the cities passing in the same set of names each time in the fron end.