Kathryn, ND has a population of 63 and is the 27,857th largest city in the United States. The population density is 108 per sq mi which is 996% higher than the North Dakota average and 20% higher than the national average. The median age in Kathryn is 65 which is approximately 85% higher than the North Dakota average of 35. In Kathryn, 63% of the population over 15 years of age are married, 97% speak English and 0% speak Spanish. 62% of Kathryn residents were born in North Dakota, 32% were born out of state, 0% were born outside of the United States and 6% were foreign born.