my %regexes = (
    zip => { 100 => qr/(\d{4,5})/, 20 => qr/(\d+)/ },
    city_state => { 200 => qr/(\w+)\s+([A-Z]{2})/, 10 => qr/(\w+)\s+((?:\w+)+)/),
    city => { 25 => qr/(\w+)/, 2 => qr/((?:\w+)+)/ },
    name => { 50 => qr/^\s+(\w+)/ },
    ...
);