The Vint surname is pretty localised in the United Kingdom.  I have reproduced below two maps showing the distribution of the Vint surname according to data from the 1881 census.  The first map shows the actual numbers.  The second map is relative density.

County                    Actual             < per 100,000
Middlesex                   46                        2
Lanarkshire                 40                        4
Yorks W.Riding            39                        2
Northumberland           24                        6
Wigtownshire              15                      39
Lancashire                 14                        0
Co. Durham                14                        2
Kent                           9                        1
Renfrewshire                8                        4
Sussex                       8                         2
Selkirkshire                  7                       27
Yorks N.Riding              7                         2
Surrey                        6                         0
Cheshire                     5                         1
Jersey                        4                         8
Ayrshire                      4                         2
Hampshire                   3                         1
Fifeshire                      2                         1
Norfolk                        2                         0
Glamorgan                    1                        0
Yorks E.Riding               1                        0
City of London              1                         2