[Ed. – CBP personnel have been shifted to the southern border to deal with the crisis-level surge there. Almost all the illegal crossings are by non-Canadians from Central and South America and Asia.]
U.S. Customs and Border Protection data shows a total of 4,316 apprehensions across the entire northern border in 2018, and 1,930 in the Detroit sector, the busiest. For 2017, the total was 3,027, with 1,070 in the Detroit sector.
Of those apprehended on the northern border last year, 2,245 were Mexican, 445 were Guatemalan, 244 were Hondurans, 196 were from Romania, 182 were from India, 172 were Canadian, and 127 were from El Salvador. A dozen or more also came from Brazil, China, Columbia, Cuba, the Dominican Republic, Ecuador, Haiti, Jamaica, Nicaragua, Nigeria, Peru, Ukraine and Venezuela, according to the data.