Swansea is a village in St. Clair County, Illinois. It is a part of the St. Louis metropolitan area and Metro East in southern Illinois. It is surrounded by the cities of Fairview HeightsBellevilleO’Fallon, and Shiloh. The population was 13,430 at the 2010 census, an increase from 10,579 in 2000.

In the late 19th century the area that is now Swansea was a mix of farming and commerce. It was home to underground coal mines, foundries, brickyards, and the Gundlach Drill Works, manufacturers of the most efficient grain drills of that era. The early residents were fiercely independent and bent on conducting their own affairs. When the municipality that sat on their doorstep reached out to annex their lands and businesses they decided to start their own community.

On November 27, 1886 a group of 35 area residents petitioned the county government "that they are desirous of having said territory organized as a village...That the name of the proposed village shall be New Swansea."

The residents voted on December 16, 1886, to form their own community and name it “New Swansea”. A petition for annexation to the city of Belleville was being circulated in the territory. Establishing an independent community was a quick and effective method of avoiding annexation. And so a new municipality was incorporated on December 20, 1886. In 1898 the lot at the corner of Brackett and Illinois Streets was purchased for $300. The Village Hall was completed shortly thereafter at a cost of $619.50.

Swansea is home to two school districts:

District 113 - Wolf Branch School District. This district includes Wolf Branch Elementary School and Wolf Branch Middle School. The mascots for both schools are the Wolverines.
District 116 - High Mount School District. This district includes High Mount School.

High school aged students in Swansea attend school in Belleville Township District 201, including both Belleville East and Belleville West high schools. Alternate private high schools include Althoff Catholic High School and The Governor French Academy.

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Location of Swansea in St. Clair County, Illinois.
Location of Swansea in St. Clair County, Illinois.
Location of Illinois in the United States
Location of Illinois in the United States
Coordinates: 38°32′30″N 89°59′14″WCoordinates38°32′30″N 89°59′14″W
Country United States
State Illinois
County St. Clair
Named after Swansea, Wales
 • Total 6.57 sq mi (17.01 km2)
 • Land 6.41 sq mi (16.61 km2)
 • Water 0.15 sq mi (0.40 km2)
 • Total 13,430
 • Estimate 
 • Density 2,104.77/sq mi (812.71/km2)
Time zone UTC-6 (CST)
 • Summer (DST) UTC-5 (CDT)
ZIP Code(s)
Area code(s) 618
FIPS code 17-74119
Wikimedia Commons Swansea, Illinois
Website swanseail.org
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