
Smithfield
- County:
- Fulton County
- County Seat:
- No
- Area (mi²):
- 0.465
- State:
- Illinois
Smithfield is a village located in Fulton County, Illinois. Smithfield has a 2025 population of 182. Smithfield is currently declining at a rate of -0.55% annually and its population has decreased by -3.7% since the most recent census, which recorded a population of 189 in 2020.
The average household income in Smithfield is $71,417 with a poverty rate of 18.34%. The median age in Smithfield is 48.1 years: 39.5 years for males, and 49 years for females.