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_18958648_1 (state_and_district_of_columbia VARCHAR, overweight__incl_obese__adults VARCHAR)

### Question ###
How many states or District of Columbia have 65.4% overweight or obese adults?

### Accurate SQL ###

SELECT COUNT(state_and_district_of_columbia) FROM table_18958648_1 WHERE overweight__incl_obese__adults = "65.4%"