Unattended Ground Sensor Market was valued at USD 2,087 million in 2025 and is projected to reach USD 3,057 million by 2034, expanding at a CAGR of 4.3% across the 2026–2034 forecast period. North America held approximately 40% of the market in 2025 and remains the largest region, while Asia-Pacific is the fastest-growing on rising defence budgets and border infrastructure investment.