CREATE TEMPORARY TABLE `ZipTemp` ( `ZipCode` CHAR(6) DEFAULT NULL, PRIMARY KEY (`ZipCode`) ) ENGINE=MYISAM DEFAULT CHARSET=utf8; INSERT INTO ZipTemp (ZipCode) SELECT DISTINCT ZipCode FROM AreaTownZip a WHERE a.ZipLat BETWEEN 40.5342140198 AND 42.5342140198 AND a.ZipLong BETWEEN -82.4155044556 AND -80.4155044556;