Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
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)?
### Answer:
SELECT COUNT(zip_code_prefix_es_) FROM table_14253123_1 WHERE _percentage_of_boundary_by_water = "63%"