Nitro, WV is a city located in Kanawha County, West Virginia and has a land area of 8.88 square miles (23.00 km2). The water area for the city is 0.77 square miles or 1.99 km2. There is one unique zip code in Nitro, West Virginia and it is 25143. The area code(s) for Nitro is 304/681.
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