Lymington is a port town on the west bank of the Lymington River on the Solent, in the New Forest District of Hampshire. It is to the east of the South East Dorset conurbation, and faces Yarmouth on the Isle of Wight which is connected to it by a car ferry. The town has a large tourist industry, based on the proximity to the New Forest National Park and the harbour. It is a major yachting centre with three marinas. According to the 2011 census the Lymington urban area had a population of 15,407. If you were to also include the nearby parish of Boldre which includes Walhampton, normally considered part of Lymington, then the population in 2011 was 17,410.
Lymington was one of the boroughs reformed by the Municipal Corporations Act 1835. Almost a century later in 1932, the borough had a major expansion. Its neighbour, Milton (previously an urban district) and the parishes of Milford and Pennington, and parts of other parishes, from Lymington Rural District were added to the borough, extending it west along the coast to the border with Christchurch.
Under the Local Government Act 1972 the borough of Lymington was abolished on 1 April 1974, becoming an unparished area in the district of New Forest, with Charter Trustees. The area was subsequently parished as the four parishes of New Milton, Lymington and Pennington, Milford-on-Sea and Hordle.
From the Middle Ages to the nineteenth century Lymington was famous for making salt. Saltworks comprised almost a continuous belt along the coast toward Hurst Spit. From the early nineteenth century it had a thriving shipbuilding industry, particularly associated with Thomas Inman the builder of the schooner Alarm, which famously raced the American yacht America in 1851. Much of the town centre is Victorian and Georgian, with narrow cobbled streets in the area of the quay, giving an air of quaintness. The wealth of the town at the time is represented in its architecture.
For more information, see the EN Wikipedia article Lymington.
Lymington is covered in Volume 4 of the Victoria County History for Hampshire