CREATE TABLE table_204_540 (id DECIMAL, "name" TEXT, "town" TEXT, "deanery" TEXT, "vicariate" TEXT, "founded" DECIMAL, "original ethnic community" TEXT)

what is the total number of deanery as new haven ?
SELECT COUNT("deanery") FROM table_204_540 WHERE "town" = 'new haven'
SELECT COUNT("deanery") FROM "table_204_540" WHERE "town" = 'new haven'