CREATE TABLE table_204_863 (id NUMBER, "state" CLOB, "city/county" CLOB, "population served" NUMBER, "charter type" CLOB, "station name" CLOB, "web site" CLOB)

does st. louis or rolla have the higher population served ?
SELECT "city/county" FROM table_204_863 WHERE "city/county" IN ('st. louis', 'rolla') ORDER BY "population served" DESC LIMIT 1
SELECT "city/county" FROM "table_204_863" WHERE "city/county" IN ('st. louis', 'rolla') ORDER BY "population served" DESC FETCH FIRST 1 ROWS ONLY