如何找到触及特定邮政编码的其他邮政编码？

I want to create a matrix for around 200 zipcodes and neighboring zipcodes that touch those zipcodes. The matrix would be 200*200 with 1's for the cells in which the two zipcodes touch and 0 when they are not neighboring zipcodes.I want to create a matrix for around 200 zipcod