Seneca

Village in LaSalle County, Illinois

View of Seneca, Illinois
Photo: IvoShandor · CC BY-SA 3.0

Seneca is a village in LaSalle County, Illinois, with 2,353 residents (2020 Census). It sits at 502 ft (153 m) above sea level. The nearest town is Marseilles, 3.3 miles W.

About Seneca

Seneca is a village in LaSalle and Grundy counties in the U.S. state of Illinois. The population was 2,353 at the 2020 census, down from 2,371 at the 2010 census.

The LaSalle County portion of Seneca is part of the Ottawa, IL Micropolitan Statistical Area, while the small portion that lies in Grundy County is part of the Chicago metropolitan area.

Text: Wikipedia · CC BY-SA 4.0

Seneca weather: 7-day forecast

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Source: National Weather Service (NOAA).

Live webcams in Seneca

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Living in Seneca

Median household income
$86,830
Median home value
$227,500
Median rent
$1,149/mo
Median age
35.5
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Map of Seneca

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Seneca Street View

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Seneca, IL population

Seneca had 2,353 residents in the 2020 Census.

2020 Census2,353
Density393 per sq mi (152 per km²)

Source: U.S. Census Bureau, Decennial Census.

Seneca at a glance

StateIllinois (IL)
CountyLaSalle County
TypeVillage
Population2,353 (2020)
Land area5.99 sq mi (15.5 km²)
Water area0.48 sq mi (1.24 km²)
Elevation502 ft (153 m)
Coordinates41.3042° N, 88.6149° W
ZIP code61360
Census code (GEOID)1768640

Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.

Towns near Seneca

Straight-line distance between town centers.

Frequently asked questions about Seneca

What county is Seneca in?

Seneca is in LaSalle County, Illinois.

What is the population of Seneca, IL?

2,353 people lived in Seneca at the 2020 Census.

What is the ZIP code of Seneca, IL?

The ZIP code of Seneca is 61360.

What is the elevation of Seneca?

502 feet (153 m) above sea level.

What towns are near Seneca?

Marseilles (3.3 mi), Kinsman (8.2 mi), Verona (8.4 mi), Ransom (10.3 mi), Mazon (10.9 mi).

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