Trumbull County, Ohio

Trumbull County, the county seat, located in Warren, Ohio, consists of a combination of both urban and rural communities situated in the northeast corner of Ohio. It is situated roughly between the Youngstown, Cleveland, and Akron corridors. It was established on July 10, 1800, serving as the seventh county in the Northwest Territory. It is named after Jonathan Trumbull, Governor of Connecticut, who once owned land in this region.

The county has a total area of 625 square miles. It is the only square county in the entire state of Ohio, with each side being approximately 25 miles. Trumbull County consists of: Warren (seat), Girard, Vienna, Liberty, Kinsman, Bazetta, Howland, Niles, Newton Falls, Champion, Mesopotamia, Bristolville, Cortland, Mecca, Hubbard, etc.

In the downtown area you will find unique shopping boutiques, jewelers, and a variety of restaurants. Also, you will find many new and historical buildings both in the downtown area and surrounding townships.

Map of Trumbull County Ohio With Municipal and Township Labels.PNG
By US Census, Ruhrfisch - taken from US Census website CC BY-SA 3.0

1800 Year Established


200,000+ Population


637 Square Miles


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Trumbull County EMA

Emergency Notification System

The Trumbull County EMA is happy to introduce a new tool for the residents of Trumbull County in order to always remain "Weather Aware".

We have partnered with WENS technology in order to bring you the most up to date severe weather warnings that may affect our county. We have chosen to only provide weather "warnings" at this time for the fear of residents becoming complacent if they receive notifications constantly. Continue reading