Illinois · Census place 1770252
Smithton, Illinois
Smithton is a village in St. Clair County, Illinois with an estimated 3,888 residents on July 1, 2024. It is the 375th largest of 651 incorporated places of 1,000+ people in the state.
- Population 2024
- 3,888
- #375 of 651 in Illinois
- Change since 2020
- -2.9%
- -115 people
- Land area
- 4.5 sq mi
- + 0.05 sq mi water
- Density
- 862 / sq mi
- State median 2,177
Measure from here
Tools and pages that start from Smithton
Smithton population, 2020 to 2024
Smithton lost 115 residents from July 2020 to July 2024, a change of -2.9%. In the latest year it moved by -18.
Smithton covers 4.51 square miles of land and 0.05 of water, for 862 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Smithton is less dense than the typical town.
What county Smithton is in
All of Smithton's residents live in St. Clair County, which had 251,149 residents in 2024. Smithton holds 1.5% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.
ZIP codes in Smithton
2 ZIP Code Tabulation Areas (ZCTAs) overlap Smithton by at least 10% of the ZCTA's or the village's land: 62220, 62285. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a village that annexed land after 2020 may reach into ZIP codes not listed here.
Where Smithton is
The Census internal point of Smithton is at 38.414300, -89.990100. Springfield, the capital, is 96.2 miles N in a straight line. The nearest larger place is Freeburg, IL (4,518 people), 4.3 miles away. The nearest city of 100,000 or more is St. Louis, MO, 20.6 miles away.
Internal point
- Decimal
- 38.414300, -89.990100
- DMS
- 38°24'51.48"N 89°59'24.36"W
- UTM
- 16N 238933.7E 4256018.9N
- Geohash
- dnb481p5w
- Plus code
- 86CGC275+PX
Daylight in Smithton
At 38.41° N, Smithton gets about 14 h 51 min of daylight around the June solstice and 9 h 29 min around the December solstice, a swing of 5 h 22 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.
Places near Smithton
The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is Freeburg, 4.4 miles away, with 4,518 people.
Questions people ask
What is the population of Smithton, IL?
3,888 on July 1, 2024, in the Census Vintage 2024 estimates. That is down 115 (2.9%) from 4,003 in July 2020.
What county is Smithton in?
St. Clair County. All of its residents live in that county.
What ZIP codes cover Smithton?
2 ZIP Code Tabulation Areas overlap it by at least 10% of either area: 62220, 62285.
How far is Smithton from Springfield?
96.2 miles (154.8 km) in a straight line, heading N from Smithton.
What is the nearest larger city to Smithton?
Freeburg, IL, with 4,518 residents, 4.3 miles away between internal points.
Sources and data as of
Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.
- 01Census Vintage 2024 subcounty population estimates
- 02Census 2024 Gazetteer, places
- 03Census 2020 ZCTA to place relationship file
- 04Census 2024 cartographic boundary file, counties (1:5,000,000)
How every number is computed: methodology. Spotted a wrong figure? Report an error.