Slater, WY has a population of 68 and is the 27,707th largest city in the United States. The population density is 1 per sq mi which is 84% lower than the Wyoming average and 99% lower than the national average. The median age in Slater is 66 which is approximately 79% higher than the Wyoming average of 37. In Slater, 28% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 72% of Slater residents were born in Wyoming, 28% were born out of state, 0% were born outside of the United States and 0% were foreign born.