Southmayd, TX is a city located in Grayson County, Texas and has a land area of 0.64 square miles (1.66 km2). The water area for the city is 0.00 square miles or 0.00 km2. There is one unique zip code in Southmayd, Texas and it is 76268. The area code(s) for Southmayd is 903/430.
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