Cass County
URL: https://knowledge.ivjn.us/en/places/il-cass-county.html

Cass County is a county of Illinois, United States.

## Overview

Cass County is a county of [Illinois](https://knowledge.ivjn.us/en/places/illinois.html), United States (FIPS il017), with a population of about 13,642[^geonames].

## Geography

- Coordinates: 39.9736, -90.2474
- Time zone: America/Chicago

Updated: 2026-10-29

Relations:
- Located in: Illinois https://knowledge.ivjn.us/en/places/illinois.html
- Contains places: Ashland https://knowledge.ivjn.us/en/places/il-ashland.html
- Contains places: Arenzville https://knowledge.ivjn.us/en/places/il-arenzville.html
- Contains places: Virginia https://knowledge.ivjn.us/en/places/il-virginia.html
- Contains places: Beardstown https://knowledge.ivjn.us/en/places/il-beardstown.html
- Contains places: Chandlerville https://knowledge.ivjn.us/en/places/il-chandlerville.html

Mentioned in:
- Arenzville https://knowledge.ivjn.us/en/places/il-arenzville.html
- Ashland https://knowledge.ivjn.us/en/places/il-ashland.html
- Beardstown https://knowledge.ivjn.us/en/places/il-beardstown.html
- Chandlerville https://knowledge.ivjn.us/en/places/il-chandlerville.html
- Virginia https://knowledge.ivjn.us/en/places/il-virginia.html

Sources:
- GeoNames US dataset (US.txt / admin2Codes.txt) https://download.geonames.org/export/dump/US.zip