Sibley, Illinois
Sibley is a small village in Ford County, Illinois, United States. It covers about half a square mile, and most of it is land. About 817 feet above sea level, Sibley had 288 residents in 2020.
History quick facts: The town site was laid out in 1877 for Michael L. Sullivant, who is connected to Sullivant Township. The land was later sold to Hiram Sibley. The post office began in 1873 as Burr Oaks and was renamed Sibley in 1880. A famous claim once said Sibley had the world’s largest corn crib (125,000 bushels), but it was torn down in 1965.
What the 2020 census shows: 111 households and 58 families lived in Sibley, with a population density of about 583 people per square mile. There were 149 housing units. The town is mostly White, with a small number of people from other races or who are two or more races, and about 2% were Hispanic or Latino.
Households and age: roughly 20% had children under 18. About 46% were married couples, and nearly 48% were non-families. Around 41% of households were individuals, and about 20% had someone living alone who was 65 or older. The average household size was about 2.8 people, while the average family size was about 2.0.
Sibley’s residents tend to be older, with a median age of about 51. Thirty percent of the population is 65 or older, and 18% are under 18.
Income: the median household income is about $49,000, and the median family income is around $70,500. Males earn about $49,000 on average, while females earn around $31,000. The per-person income is about $27,000. Some people live in poverty, including roughly 8% of families and 14% of the population, with higher shares among those under 18.
This page was last edited on 2 February 2026, at 07:19 (CET).