Sylvester, WV has a population of 186 and is the 24,794th largest city in the United States. The population density is 738 per sq mi which is 863% higher than the West Virginia average and 714% higher than the national average. The median age in Sylvester is 38 which is approximately 9% lower than the West Virginia average of 42. In Sylvester, 84% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 93% of Sylvester residents were born in West Virginia, 7% were born out of state, 0% were born outside of the United States and 0% were foreign born.