[dba-SQLServer] Count of records with zip

I need what appears to me to be a crosstab, a COUNT of all records in a set
of zip codes.  In other words, I have a table of zips (about 100).  I need a
count of how many records in my nVLDB is in each zip code.  Can anyone point
me in the right direction in SQL Server?

John W. Colby
www.ColbyConsulting.com