Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_30121075_1 (barony VARCHAR, townland VARCHAR)

### Question ###
How many entries are in barony when the townland is derrigra?

### Accurate SQL ###

SELECT COUNT(barony) FROM table_30121075_1 WHERE townland = "Derrigra"