Lebanon is a city located in Grafton County New Hampshire. With a 2020 population of 13,785, it is the 9th largest city in New Hampshire and the 2448th largest city in the United States . Lebanon is currently growing at a rate of 0.49% annually and its population has increased by 4.82% since the most recent census, which recorded a population of 13,151 in 2010. Lebanon reached it's highest population of in . Spanning over 41 miles, Lebanon has a population density of 342 people per square mile.
The average household income in Lebanon is $88,244 with a poverty rate of 11.26%. The median rental costs in recent years comes to $1,098 per month, and the median house value is $245,400. The median age in Lebanon is 38.7 years, 36 years for males, and 43.9 years for females.