Ogallah, KS is a city located in Trego County, Kansas and has a land area of 129.19 square miles (334.60 km2). The water area for the city is 5.34 square miles or 13.83 km2. There is one unique zip code in Ogallah, Kansas and it is 67656. The area code(s) for Ogallah is 785.
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