Rhinelander, WI has a population of 7,552 and is the 4,903rd largest city in the United States. The population density is 907 per sq mi which is 938% higher than the Wisconsin average and 901% higher than the national average. The median age in Rhinelander is 40 which is approximately 3% higher than the Wisconsin average of 39. In Rhinelander, 48% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 75% of Rhinelander residents were born in Wisconsin, 23% were born out of state, 1% were born outside of the United States and 1% were foreign born.