Where is effingham county

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Last updated: April 8, 2026

Quick Answer: Effingham County is located in southeastern Illinois, United States, established on February 15, 1831. It covers an area of 479 square miles and has a population of approximately 34,668 as of the 2020 census, with its county seat in Effingham.

Key Facts

Overview

Effingham County is a county located in the southeastern region of Illinois, United States. It was officially established on February 15, 1831, and named after Edward Effingham, a British general who served during the American Revolutionary War. The county's formation came during a period of rapid westward expansion in the early 19th century, as settlers moved into the Illinois Territory following statehood in 1818. Today, it stands as a significant agricultural and transportation hub in the state.

The county seat is the city of Effingham, which serves as the administrative and commercial center of the region. Effingham County covers a total area of 479 square miles, including 478 square miles of land and 1.0 square mile of water. Its geography is characterized by flat to gently rolling terrain typical of the Central Illinois plains, with fertile soil that supports extensive farming. The county is part of the Effingham Micropolitan Statistical Area and plays a crucial role in connecting major transportation routes across the Midwest.

How It Works

Effingham County operates through a combination of governmental structures, economic activities, and community services that sustain its population and growth.

Key Comparisons

FeatureEffingham County, ILAverage Illinois County
Population Density72 people/sq mi230 people/sq mi
Median Household Income$62,000 (approx.)$72,000 (state average)
Land Area479 sq mi600 sq mi (average)
Unemployment Rate4.2% (2023)4.8% (state average)
Agricultural Land UseOver 80%About 75% (statewide)

Why It Matters

Looking ahead, Effingham County is poised for continued growth, with plans to expand infrastructure and diversify its economy. Investments in renewable energy and technology could further bolster its role in the region. By balancing agricultural traditions with modern development, the county aims to sustain its community and economic vitality for future generations.

Sources

  1. WikipediaCC-BY-SA-4.0

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