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_204_87 ( id number, "courthouse" text, "city" text, "street address" text, "jurisdiction" text, "dates of use" text, "named for" text )

### Question ###
how many cities have more than one courthouse listed ?

### Accurate SQL ###

SELECT COUNT(*) FROM (SELECT "city" FROM table_204_87 GROUP BY "city" HAVING COUNT("courthouse") > 1)