Name the number of county for 90 population
CREATE TABLE table_18600760_8 (county VARCHAR, pop__2010_ VARCHAR)
SELECT COUNT(county) FROM table_18600760_8 WHERE pop__2010_ = 90
### Context: CREATE TABLE table_18600760_8 (county VARCHAR, pop__2010_ VARCHAR) ### Question: Name the number of county for 90 population ### Answer: SELECT COUNT(county) FROM table_18600760_8 WHERE pop__2010_ = 90