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_name_5 ( population VARCHAR, former_local_authority VARCHAR, name VARCHAR )

### Question ###
What is the population of the Parish, Plumbland, that had a former local authority of Cockermouth Rural District?

### Accurate SQL ###

SELECT COUNT(population) FROM table_name_5 WHERE former_local_authority = "cockermouth rural district" AND name = "plumbland"