In 2018, global authorities recorded unprecedented attempts at illegal border crossing along land, sea, and air routes, reflecting tightened enforcement and continued migration pressures. These statistics illuminate shifting routes, enforcement outcomes, and the evolving profile of border crossers.
Across continents, agencies reported higher interceptions in certain corridors while some regions saw declines, indicating the complex geography of 2018 mobility patterns. The table below summarizes key outcomes and enforcement contexts for that year.
| Region | Total Apprehensions | Primary Border Type | Top Nationalities Encountered | Policy Context |
|---|---|---|---|---|
| Mediterranean Sea | 156,610 | Maritime | Syria, Afghanistan, Iraq | EU search-and-rescue scaling back, bilateral deals |
| US–Mexico Southern Border | 396,579 | Land | Mexico, Honduras, Guatemala, El Salvador | Zero Tolerance rollout, family separations |
| Western Balkans to EU | 141,065 | Land | Afghanistan, Pakistan, Iraq | Western Balkan route closures, stricter border controls |
| Central Mediterranean from Libya | 68,377 | Maritime | Eritrea, Somalia, Nigeria | Italian patrols disrupted smuggling, mixed flows |
| Northern Triangle via Mexico | 89,127 apprehended in Mexico | Land | Honduras, Guatemala, El Salvador | Mexico’s southern-border Plan Frontera Sur |
Apprehensions and Interceptions by Corridor
Mediterranean Sea Routes
Authorities apprehended 156,610 people attempting sea crossings to the EU in 2018, with the Central Mediterranean from Libya accounting for 68,377 and the Eastern Mediterranean from Turkey to Greece representing a smaller flow. Interceptions rose as EU-supported Libyan coast efforts expanded, while search-and-rescue capacity contracted.
United States–Mexico Land Borders
US Border Patrol recorded 396,579 illegal border crossing apprehensions on the US–Mexico southern boundary in 2018, a marked increase over previous years driven by family units from the Northern Triangle. Policy shifts including metering and family detention influenced these enforcement outcomes.
Diverse Migrant and Refugee Origins
Country-of-Origin Patterns
Syrians continued to arrive via Mediterranean routes, while Afghans featured prominently across Western Balkan and Mediterranean flows. Hondurans, Guatemalans, and Salvadorans remained central to US southern-border apprehensions, reflecting region-specific drivers of displacement and economic stress.
Enforcement and Policy Impacts
Policy Shifts in Key Regions
In 2018, the EU balanced relocation pledges with externalization deals that pressed third states to intercept departures. In the United States, the Trump administration implemented family separation and expedited removal, while Mexico launched its southern-border program under US pressure, reshaping flows and apprehensions.
Key Considerations for Understanding 2018 Border Trends
- Differentiate between apprehensions, removals, and voluntary returns to accurately assess enforcement impact.
- Recognize how policy shifts in one country can reroute flows and alter statistics in neighboring regions.
- Consider data definitions, as agencies may count border encounters differently across countries.
- Use year-on-year comparisons alongside monthly trends to identify seasonality and policy effects.
FAQ
Reader questions
How many people were apprehended for illegal border crossing in the United States in 2018?
US Border Patrol apprehended 396,579 individuals attempting illegal border crossing along the US–Mexico border in 2018.
Which nationalities were most frequently encountered at Europe’s borders in 2018?
Syrians, Afghans, Iraqis, and nationals from the Northern Triangle countries were among the most frequently encountered at European borders in 2018.
What happened to Mediterranean sea arrivals in 2018 compared with previous years? Mediterranean sea arrivals to the EU declined from 2017 peaks, with 156,610 recorded apprehensions, as EU-supported interdiction in Libyan waters increased and search-and-rescue operations scaled back. How did policy changes in Mexico influence illegal border crossing statistics along the US southern border in 2018?
Mexico’s expansion of Plan Frontera Sur and cooperation with US enforcement measures contributed to higher apprehensions and shifted migrant flows across the southern border in 2018.