New Post, WI has a population of 258 and is the 23,267th largest city in the United States. The population density is 13 per sq mi which is 86% lower than the Wisconsin average and 86% lower than the national average. The median age in New Post is 59 which is approximately 50% higher than the Wisconsin average of 39. In New Post, 62% of the population over 15 years of age are married, 96% speak English and 0% speak Spanish. 56% of New Post residents were born in Wisconsin, 43% were born out of state, 0% were born outside of the United States and 1% were foreign born.