Moscow, KS has a population of 331 and is the 21,944th largest city in the United States. The population density is 1,924 per sq mi which is 5384% higher than the Kansas average and 2023% higher than the national average. The median age in Moscow is 30 which is approximately 17% lower than the Kansas average of 36. In Moscow, 55% of the population over 15 years of age are married, 57% speak English and 43% speak Spanish. 52% of Moscow residents were born in Kansas, 28% were born out of state, 0% were born outside of the United States and 20% were foreign born.