Marshfield, VT has a population of 283 and is the 22,801st largest city in the United States. The population density is 1,096 per sq mi which is 1585% higher than the Vermont average and 1110% higher than the national average. The median age in Marshfield is 33 which is approximately 23% lower than the Vermont average of 43. In Marshfield, 49% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 59% of Marshfield residents were born in Vermont, 41% were born out of state, 0% were born outside of the United States and 0% were foreign born.