大朗镇各村邮编如下：大朗村：523866，松木山村：523867，水口村：523868，巷头村：523869，黄草朗村：523870，石厦村：523871，桥头村：523872，沙塘村：523873，松柏朗村：523874，大井头村：523875，黄牛埔村：523876，石马村：523877，水边村：523878，巷尾村：523879，松树山村：523880，石步村：523881，松山村：523882，石岗村：523883，松湖村：523884，石井村：523885。