Forbes, ND has a population of 27 and is the 28,669th largest city in the United States. The population density is 112 per sq mi which is 1028% higher than the North Dakota average and 23% higher than the national average. The median age in Forbes is 61 which is approximately 72% higher than the North Dakota average of 35. In Forbes, 96% of the population over 15 years of age are married, 92% speak English and 0% speak Spanish. 48% of Forbes residents were born in North Dakota, 52% were born out of state, 0% were born outside of the United States and 0% were foreign born.