How to count distinct column values in Google Sheets?

Question

Link to Working Examples

Solution 0

This can be accompished using pivot tables.

Pivot table Example - Count rows by value

Solution 1

Use the unique formula to get all the distinct values. Then use countif to get the count of each value. See the working example link at the top to see exactly how this is implemented.

Unique Values        Count
=UNIQUE(A3:A8)       =COUNTIF(A3:A8;B3)
                     =COUNTIF(A3:A8;B4)
                     ...

Solution 2

If you setup your data as such:

City    
----    
London   1
Paris    1
London   1
Berlin   1
Rome     1
Paris    1

Then the following will produce the desired result.

=sort(transpose(query(A3:B8,"Select sum(B) pivot (A)")),2,FALSE)

I’m sure there is a way to get rid of the second column since all values will be 1. Not an ideal solution in my opinion.

via http://googledocsforlife.blogspot.com/2011/12/counting-unique-values-of-data-set.html

Other Possibly Helpful Links

http://productforums.google.com/forum/#!topic/docs/a5qFC4pFZJ8

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