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_14253123_1 (zip_code_prefix_es_ VARCHAR, _percentage_of_boundary_by_water VARCHAR)

### Question ###
When the % of boundary by water is 63% what is the overall number of zip code prefix(es)?

### Accurate SQL ###

SELECT COUNT(zip_code_prefix_es_) FROM table_14253123_1 WHERE _percentage_of_boundary_by_water = "63%"