SQL Server - pull X random records per state

I have a table with records for each zip code in the united st开发者_如何学运维ates. For the purposes of displaying on a map, I need to select X random records per state. How would I go about doing this?

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Use:

WITH sample AS (
 SELECT t.*,
        ROW_NUMBER() OVER (PARTITION BY t.state
                               ORDER BY NEWID()) AS rank
   FROM ZIPCODES t)
SELECT s.*
  FROM sample s
 WHERE s.rank <= 5

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SELECT * FROM ZipCodes ORDER BY NEWID()