Zanesville: 740.453.0791
Newark: 740.344.9556
Pataskala: 740.919.5130

About Our Agency

The agency had its beginnings when Frank White started writing business with Grange Mutual Casualty in 1935, the very same year that Grange Mutual was formed. The agency was operated from his residence on Chandlersville Road where some years later he was joined by his nephew, Darrell Williamson.

After working with Frank for a time, Darrell purchased his own agency with his wife Shirley and moved to a new location at 2115 Maple Avenue in 1962. The following year in 1963 the business became incorporated with the addition of the new co-owners Dean and Ruth Baughman. The name was changed to Williamson-Baughman Insurance and several agencies were brought in to form the new one. The first Grange Mutual agencies purchased were from Lulu Vandenbark (one of the original founders of Grange Mutual) and Stanley Welsh. The agency then purchased Mary Harlan, Sumner Cohagon, and Darrell’s Uncle Frank White’s agencies at the company’s request.

The name once again changed back to Williamson Insurance Service in the 1990’s after the retirement of Dean Baughman in 1992. That same year, Darrell and Shirley’s son Jeff and his wife Connie joined the agency as co-owners. Darrell and Shirley retired in March of 1997. In 2008 the company saw its fourth generation family member, Jeff and Connie's son Jason join the staff and a year later in 2009 the first expansion office was opened in Newark. Our company has grown to proudly serve the Ohio communities of Zanesville, Newark, Buckeye Lake, Cambridge, Dresden, Granville, Heath, Nashport, New Concord and also the State of Indiana.

As an independent agent, we sell all lines of insurance for many companies rather than just one. We offer you the power of choice while providing you the comfort of being able to do business with people that you know and trust! Now representing over a dozen personal, commercial, and life companies, Williamson Insurance provides a wide range of protection and financial services!

At Williamson Insurance, we are very proud of our heritage and the fact that we have been family owned and operated since 1935. We are also proud of the people whose efforts helped build this agency and made us what we are today.

Be a part of the agency with the personal touch. To learn what we can do for you, call one of the numbers listed below or click on one of the product links to learn more information. We look forward to hearing from you!

Our Locations


2115 Maple Ave
Zanesville, OH 43701
Main office: 740-453-0791


686 W. Church St.
Newark, OH 43055
Main office: 740-344-9556


PO Box 1414
Pataskala, OH 43062
Main office: 740-919-5130

Our Providers

They’re consistently helpful whether I have a question or am searching for a new policy.

– K.P. Columbus, Ohio
K.P. Columbus, Ohio
They are very helpful, knowledgeable, friendly and always looking out for my best interest.

– J.B. Philo, Ohio
J.B. Philo, Ohio
Friendly, down home people who take care of my family ’s needs.

– E.S. Zanesville, Ohio
– E.S. Zanesville, Ohio
…reps are very nice, know what they are doing and able to explain in a way you understand.

– P.S. Cambridge, Ohio
– P.S. Cambridge, Ohio
Williamson Insurance treats you like family!

– D.G. Zanesville, Ohio
– D.G. Zanesville, Ohio