My Local Guide

Western Reserve History Meets Mahoning Valley Resilience

Trumbull County, Ohio

Trumbull County brings together working communities, local history, outdoor spaces, and the character of Warren. From National Packard Museum to Mosquito Lake State Park, the county offers visitors and prospective residents a grounded mix of heritage, recreation, working communities, and local institutions. Warren serves as the county seat, while surrounding villages and townships add distinct traditions, landscapes, and reasons to take the slower road.

Trumbull County at a Glance

Population198,972 (2025 estimate)
County SeatWarren
Largest CityWarren
Established1800
ZIP Codes23 ZIP Codes
Total Area636 square miles including water
Major RoutesMajor state and U.S. routes serving the county
Area Codes330 and 234
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Greenfield County courthouse
Discover Trumbull County

Trumbull County

Established in 1800, Trumbull County developed around working communities, local history, outdoor spaces, and the character of Warren. Its county seat, Warren, remains an important civic center, while the county's smaller communities preserve local institutions, events, and landscapes. Today, places such as National Packard Museum and Trumbull Art Gallery help residents and visitors understand how geography, work, transportation, and shared memory shaped the area.

Life here moves between community centers, rural roads, public parks, and locally important gathering places. Visitors can pair Mosquito Lake State Park with Sutliff Museum, then spend time around Downtown Warren. Residents benefit from regional access while keeping close connections to schools, libraries, parks, civic groups, and annual traditions.

What Shapes Us

Heritage

Trumbull Art Gallery and local historic sites preserve the people, industries, and events that shaped the county.

Landscape and Work

Working communities, local history, outdoor spaces, and the character of warren continue to influence recreation, transportation, local business, and the county's visual identity.

Community Life

Warren, Warren, villages, and townships connect through schools, libraries, parks, festivals, and everyday civic involvement.

Many communities one enduring Trumbull County story
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Meet Local Businesses

Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.

Trumbull County Resources

Everything You Need. All in One Place.

Find practical Trumbull County contacts for government, schools, health care, public safety, parks, trails, utilities, libraries, courts, transportation, veterans services, employment, and other everyday needs.

Government

Trumbull County Government
County offices, departments, public records, and resident services.
Official Website

Ohio.gov
State services and agency information for Ohio residents.
Official Website

Ohio Secretary of State Elections
Official voter, election, and polling-place information.
Official Website

Ohio Auditor of State
Public-office audits, local-government reports, and financial accountability resources.
Official Website

Ohio Treasurer of State
State financial programs, public-funds information, and resident services.
Official Website

We're Here To Help.

Clear answers for visiting, living in, and getting around Trumbull County.

Helpful Information

Frequently Asked Questions

Get useful, locally focused answers about Trumbull County attractions, communities, outdoor recreation, history, travel, seasonal conditions, ZIP Codes, and everyday planning.

Trumbull County stands out for working communities, local history, outdoor spaces, and the character of Warren. Good starting points include National Packard Museum, Mosquito Lake State Park, and Trumbull Art Gallery. Together they introduce the area’s landscape, history, and community life.

Shop - Dine - Discover

Meet Local Businesses

Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.

My Local Guide

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Top Picks for Every Kind of Day.

Browse family activities, restaurants, shopping, boutiques, outdoor destinations, and free things to do across Trumbull County.

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