Looking for real estate in Allen County, OH, Ohio? Coldwell Banker King Thompson can help you find Allen County, OH homes for sale, Allen County, OH real estate agents, and information about the Allen County, OH real estate market. Why use www.coldwellbankerhomes.com? You can search all available MLS listings in Allen County, OH including single family homes, condos, townhouses, and many other types of properties whether you are ready to buy now or just starting your search. Find information about Allen County, OH schools and nearby amenities like restaurants, banks, airports and shopping centers. Coldwell Banker King Thompson services Allen County, OH from our offices in Arlington / Clintonville / Grandview Regional , Bexley , Grove City/Southwest , Marysville , Metro Office, New Albany/Gahanna , Newark/Granville , Northwest Regional Office, Polaris Regional Sales Office , Southeast Regional.