CREATE TABLE table_22111 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Results" TEXT, "Candidates" TEXT)

How many districts have the incumbent, Charles Rangel?
SELECT COUNT("District") FROM table_22111 WHERE "Incumbent" = 'Charles Rangel'
SELECT COUNT("District") FROM "table_22111" WHERE "Incumbent" = 'Charles Rangel'