New Johnsonville, TN is a city located in Humphreys County, Tennessee and has a land area of 39.12 square miles (101.32 km2). The water area for the city is 10.33 square miles or 26.75 km2. There is one unique zip code in New Johnsonville, Tennessee and it is 37134. The area code(s) for New Johnsonville is 931.
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