Administrative Boundary of Wiltshire

About Wiltshire

Wiltshire is a unitary authority and county in the southwest of England, covering approximately 3,255 square kilometres of chalk downland, river valleys, and ancient landscapes. With a population of approximately 496,000 (2021 Census), Wiltshire contains a greater concentration of prehistoric monuments than any other county in England and is home to two UNESCO World Heritage Sites: Stonehenge and Avebury, which together form the most remarkable prehistoric ceremonial landscape in the world. History and Heritage Wiltshire's landscape has been shaped by human hands for at least 5,000 years. The chalk uplands of the Salisbury Plain and the Marlborough Downs provided open, easily worked terrain for Neolithic and Bronze Age communities, who left behind an extraordinary legacy of barrows, henges, avenues, and stone circles that transforms the county into an open-air archaeological museum of global significance. Stonehenge, constructed in several phases between approximately 3000 BC and 1500 BC, is the most famous prehistoric monument in Britain and one of the most iconic and studied structures in the world. The unique arrangement of standing sarsen stones (each weighing up to 25 tonnes and transported 25 miles from Marlborough Downs) and bluestones (transported approximately 150 miles from the Preseli Hills of Wales) has generated centuries of debate about its purpose, construction, and the society that built it. Modern research has established that Stonehenge was part of a vast ceremonial landscape — the Stonehenge World Heritage Site encompasses approximately 2,600 hectares and includes more than 350 burial mounds, the Avenue (a two-mile ceremonial approach), the Cursus (a large Neolithic earthwork), and the remains of Durrington Walls, a massive Neolithic settlement that housed thousands of people during the construction phases. The winter solstice alignment and the midsummer sunrise alignment visible from the monument's centre are the most studied, and Stonehenge continues to be a site of pilgrimage for those celebrating the solstice. Avebury, 20 miles north of Stonehenge, is less famous but arguably more remarkable. Its stone circle is the largest in the world — over 400 metres in diameter — and the village of Avebury is built inside the circle, with houses, a pub, and a church surrounded by standing stones. The associated monuments at Avebury include Silbury Hill (the tallest prehistoric man-made mound in Europe, approximately 40 metres high and of uncertain purpose) and the West Kennet Long Barrow (a Neolithic communal tomb c. 3650 BC, one of the finest megalithic tombs in Britain). Both Stonehenge and Avebury are jointly inscribed as a UNESCO World Heritage Site. Salisbury Cathedral Salisbury Cathedral, built in a remarkably uniform Early English Gothic style between 1220 and 1320, is one of England's most beautiful and coherent medieval buildings. Its spire, at 123 metres, is the tallest in Britain and has stood for over 700 years. The cathedral holds one of the four surviving exemplifications of Magna Carta (the Great Charter of 1215), one of the best-preserved of all four copies, displayed in its Chapter House. The cathedral's famous clock — built around 1386 — is the oldest surviving mechanical clock in the world still in working order. Longleat and the Stately Homes Longleat House, seat of the Marquess of Bath near Warminster, was the first stately home in Britain to be opened to the public commercially (in 1966) and the first in the world to establish a safari park — where lions, rhinos, and other exotic animals roam in large paddocks that visitors drive through. Lacock Abbey (National Trust), a former Augustinian nunnery adapted into a country house, is one of the best-preserved medieval monastic buildings in England and has served as a filming location for numerous adaptations of classic literature including Pride and Prejudice and Downton Abbey. Economy and Military Wiltshire has a significant military presence: the army training areas of Salisbury Plain (covering approximately 38,000 hectares — the largest military training area in the UK) and the garrisons at Tidworth, Bulford, and Warminster are major economic contributors. The county town of Trowbridge, and the market towns of Chippenham, Devizes, Marlborough, and Melksham each serve their surrounding communities. Population and Demographics The 2021 Census recorded 496,000 residents. Wiltshire is predominantly White British (approximately 95%) with a mainly rural and market-town demographic and limited urban concentration. GIS and Boundary Data The administrative boundary of Wiltshire unitary authority is available for free download in GeoJSON and KML formats, sourced from the ONS Open Geography Portal (Crown copyright 2024). Compatible with QGIS, ArcGIS, Mapbox, and Google Earth, the dataset supports prehistoric landscape management, UNESCO World Heritage Site planning, military land mapping, agricultural assessment, and demographic research across the Wiltshire local authority area.

📍 Administrative boundary of Wiltshire county