A county-wide search sounds sensible until you try to arrange a date. Wiltshire stretches across urban neighbourhoods, market towns, military communities and rural areas where a short distance on the map can mean a slow drive or an impractical public transport journey.
Swindon is largely a dating market of its own. Someone in Old Town may be happy meeting a person in West Swindon, Stratton or Wroughton because the journey fits around an ordinary working week. That same person may be less enthusiastic about regular evening trips to Salisbury, even when a dating app describes both people as local.
Salisbury has another pattern. It connects naturally with nearby villages and parts of the south of the county, while the communities around Salisbury Plain bring their own schedules. Tidworth, Bulford, Larkhill and Warminster include many serving personnel whose availability can change because of exercises, duties, courses and postings. That does not make dating impossible. It does make clear communication essential.
West Wiltshire often looks towards Bath. People in Bradford on Avon, Trowbridge and nearby villages may cross the county boundary routinely for work or social life. Chippenham has useful rail connections, while journeys from Melksham, Calne, Marlborough or Devizes depend much more heavily on where both people live and whether either drives.
A useful dating radius is not the furthest distance you could travel once. It is the distance you would willingly travel again next Thursday.
Start with journey time rather than mileage. Think about evening traffic, the last bus or train, parking and how you would get home independently. A smaller pool that fits your real life is usually more useful than a large list of people you will never meet.