CREATE TABLE table_3406 ("County" TEXT, "Town/City" TEXT, "Milepost" TEXT, "Station" TEXT, "Connections" TEXT)

How many towns or cities are at milepost 71.1?
SELECT COUNT("Town/City") FROM table_3406 WHERE "Milepost" = '71.1'
SELECT COUNT("Town/City") FROM "table_3406" WHERE "Milepost" = '71.1'