CREATE TABLE table_18649 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

How many districts for ren l. derouen?
SELECT COUNT("District") FROM table_18649 WHERE "Incumbent" = 'René L. DeRouen'
SELECT COUNT("District") FROM "table_18649" WHERE "Incumbent" = 'René L. DeRouen'