Cook, NE has a population of 316 and is the 22,200th largest city in the United States. The population density is 1,828 per sq mi which is 7527% higher than the Nebraska average and 1918% higher than the national average. The median age in Cook is 40 which is approximately 9% higher than the Nebraska average of 36. In Cook, 72% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 78% of Cook residents were born in Nebraska, 20% were born out of state, 0% were born outside of the United States and 2% were foreign born.