Lebanon, WI has a population of 251 and is the 23,402nd largest city in the United States. The population density is 570 per sq mi which is 552% higher than the Wisconsin average and 529% higher than the national average. The median age in Lebanon is 31 which is approximately 20% lower than the Wisconsin average of 39. In Lebanon, 58% of the population over 15 years of age are married, 97% speak English and 0% speak Spanish. 94% of Lebanon residents were born in Wisconsin, 6% were born out of state, 0% were born outside of the United States and 0% were foreign born.