Woodhull, IL has a population of 907 and is the 15,741st largest city in the United States. The population density is 1,100 per sq mi which is 395% higher than the Illinois average and 1114% higher than the national average. The median age in Woodhull is 41 which is approximately 10% higher than the Illinois average of 37. In Woodhull, 68% of the population over 15 years of age are married, 97% speak English and 3% speak Spanish. 86% of Woodhull residents were born in Illinois, 13% were born out of state, 0% were born outside of the United States and 1% were foreign born.