Write SQL query to solve given problem: Among the male customers, how many of them come from a place with over 30,000 inhabitants?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT COUNT(T1.GEOID) FROM Customers AS T1 INNER JOIN Demog AS T2 ON T1.GEOID = T2.GEOID WHERE T1.SEX = 'Male' AND T2.INHABITANTS_K > 30