Guernsey County, Ohio Business Directory & Community Resources
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View the 2025 U.S. Census demographic profile for Guernsey County
Guernsey County — County Seat: Cambridge
2026 Population Estimate: 38,429 | Official Website: https://guernseycounty.gov/
Guernsey County is an east-central Ohio county with the city of Cambridge as its county seat. Like much of eastern Ohio, Guernsey County has experienced a renaissance through shale energy development in the Utica and Marcellus formations, bringing investment and employment that has buoyed the local economy. The county is known for its beautiful rolling terrain — classic Appalachian plateau country — and is home to Salt Fork State Park and Salt Fork State Lodge — Ohio's largest state park and one of the most popular resort lodge destinations in the state, attracting hundreds of thousands of visitors annually. Cambridge was historically a major center of glass manufacturing, and the National Cambridge Collectors Museum celebrates the extraordinary history of Cambridge Glass, prized by collectors worldwide. Southeastern Med is the primary healthcare employer. The county's unique combination of outdoor recreation, energy industry, and heritage tourism makes it a distinctive part of Appalachian Ohio.
▸ Key Industries & Major Employers
Natural gas, manufacturing, and healthcare.
Major employers include Southeastern Ohio Regional Medical Center, Quaker Steak & Lube (regional), and natural gas processing companies active in the Utica shale formation. The county's historic crystal ware industry (Cambridge Glass) has given way to other manufacturing.
▸ Notable Economic Development Initiatives
Guernsey County benefits from Utica shale natural gas royalties and pipeline infrastructure investment. The county participates in Ohio Southeast Economic Development (OhioSE) programs. ARC funding has supported rural entrepreneurship and broadband planning.
▸ Infrastructure & Investment Highlights
I-77 is the primary north-south corridor, making Guernsey County a natural truck stop and distribution point. US-40 (National Road) historically brought commerce through Cambridge. Broadband expansion is underway using state and ARC grants. The county is studying industrial site development near I-77 interchanges.
