COUNTIF NAME RANGE

I have one worksheet called with column A1:A72 filled with 6 digit
numbers in each cell - i.e. 239260 (A1), 239060 (A2), etc. all the way
down to A72 with 6 digit numbers.

I have a second worksheet called query parameters. On it is a named
range called SHIPSEA which is another list of 6 digit numbers in a
column that identify stations that are assigned these 6 digit numbers.
The numbers in this column identify SHIPSEA.

How do I use a CountIF formula to count the number of instances that
SHIPSEA numbers appear in the worksheet one column (A:A)?

My formula returns a zero:

=COUNTIF(A1:A72,SHIPSEA)

Thanks, Todd