How Many Illegal Border Crossings In 2025 Per Day. The apprehension rate is a key measure, estimating the proportion of illegal crossings prevented by border enforcement. The terrain along the border is extreme, the summer heat is severe, and the miles of desert migrants must hike after crossing the border in many areas are.

According to an august 2020 cbp report, the department of homeland security estimates unauthorized border crossings by collecting data from various sources, including border encounters and refugee and asylee. Under the new policy, the processing of most asylum claims at the southern u.s.