Illinois · Census place 1742496
Lebanon, Illinois
Lebanon is a city in St. Clair County, Illinois with an estimated 4,628 residents on July 1, 2024. It is the 346th largest of 651 incorporated places of 1,000+ people in the state.
- Population 2024
- 4,628
- #346 of 651 in Illinois
- Change since 2020
- -2.5%
- -119 people
- Land area
- 2.7 sq mi
- Density
- 1,714 / sq mi
- State median 2,177
Measure from here
Tools and pages that start from Lebanon
Lebanon population, 2020 to 2024
Lebanon lost 119 residents from July 2020 to July 2024, a change of -2.5%. In the latest year it moved by -23.
Lebanon covers 2.70 square miles of land, for 1,714 people per square mile of land. The median Illinois place of 5,000+ has 2,177, so Lebanon is less dense than the typical town.
What county Lebanon is in
All of Lebanon's residents live in St. Clair County, which had 251,149 residents in 2024. Lebanon holds 1.8% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.
ZIP codes in Lebanon
1 ZIP Code Tabulation Area (ZCTA) overlaps Lebanon by at least 10% of the ZCTA's or the city's land: 62254. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.
Where Lebanon is
The Census internal point of Lebanon is at 38.600700, -89.809700. Springfield, the capital, is 82.0 miles N in a straight line. The nearest larger place is O'Fallon, IL (32,169 people), 5.7 miles away. The nearest city of 100,000 or more is St. Louis, MO, 23.6 miles away.
Internal point
- Decimal
- 38.600700, -89.809700
- DMS
- 38°36'2.52"N 89°48'34.92"W
- UTM
- 16N 255319.7E 4276212.0N
- Geohash
- dnb5s7496
- Plus code
- 86CGJ52R+74
Daylight in Lebanon
At 38.60° N, Lebanon gets about 14 h 52 min of daylight around the June solstice and 9 h 28 min around the December solstice, a swing of 5 h 24 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.
Places near Lebanon
The eight nearest incorporated places of 1,000+ in Illinois, measured between internal points. The closest is O'Fallon, 5.7 miles away, with 32,169 people.
Questions people ask
What is the population of Lebanon, IL?
4,628 on July 1, 2024, in the Census Vintage 2024 estimates. That is down 119 (2.5%) from 4,747 in July 2020.
What county is Lebanon in?
St. Clair County. All of its residents live in that county.
What ZIP codes cover Lebanon?
1 ZIP Code Tabulation Area overlaps it by at least 10% of either area: 62254.
How far is Lebanon from Springfield?
82.0 miles (132.0 km) in a straight line, heading N from Lebanon.
What is the nearest larger city to Lebanon?
O'Fallon, IL, with 32,169 residents, 5.7 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.