Old Lyme. Old Lyme is a coastal town in New London County, Connecticut, United States.
   The town has several beach areas that offer summer rentals of cottages by the week or the month. The Main Street of the town, Lyme Street, is a historic district with several homes once owned by sea captains.
   The town has an art school and a thriving art community. The town is named after Lyme Regis, England.
   The US headquarters of Sennheiser is located in Old Lyme, as is Callaway Cars, the Florence Griswold Museum and the Lyme Art Association. Old Lyme and its neighboring town Lyme are the namesake for Lyme disease.
   The town of Old Lyme contains several villages, including Black Hall, Laysville, Soundview, and South Lyme. The total population of the town was 7,628 at the 2020 census. Old Lyme is a community of about 7,600 permanent residents, in addition to several thousand seasonal vacationers who occupy a seaside community of summer residences. It is located on the east bank of the Connecticut River at its confluence with the Long Island Sound, across the river from Old Saybrook on the west bank. Numerous examples of Colonial and Federal architecture can be found throughout the town. The town of Lyme was set off from Saybrook, which is on the west bank of the river mouth, on February 13, 1665. South Lyme was later incorporated from Lyme in 1855, then renamed Old Lyme in 1857 because it contains the
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