Marseilles, Illinois

Marseilles
Buildings in the city's business district
Etymology: Marseille, France
Location of Marseilles in LaSalle County, Illinois.
Coordinates: 41°17′30″N 88°41′28″W / 41.29167°N 88.69111°W / 41.29167; -88.69111
CountryUnited States
StateIllinois
CountyLaSalle
TownshipsManlius, Rutland, Brookfield
Government
 • MayorJim Hollenbeck
Area
 • Total
9.57 sq mi (24.78 km2)
 • Land9.08 sq mi (23.52 km2)
 • Water0.49 sq mi (1.26 km2)
Elevation
663 ft (202 m)
Population
 (2020)
 • Total
4,845
 • Density533.6/sq mi (206.01/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
ZIP code
61341
Area code815
FIPS code17-47150
GNIS feature ID2395020
Websitecityofmarseilles.com

Marseilles (/mɑːrˈslz/ mar-SAYLZ) is a city in LaSalle County, Illinois, United States. An Illinois River town, the population was 4,845 at the 2020 census, down from 5,094 at the 2010 census. It is part of the Ottawa, IL Micropolitan Statistical Area.