Campbellsburg, IN has a population of 602 and is the 18,416th largest city in the United States. The population density is 607 per sq mi which is 238% higher than the Indiana average and 570% higher than the national average. The median age in Campbellsburg is 32 which is approximately 15% lower than the Indiana average of 37. In Campbellsburg, 58% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 80% of Campbellsburg residents were born in Indiana, 20% were born out of state, 0% were born outside of the United States and 0% were foreign born.