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Editorial Team
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Asked: 2026-06-18T18:27:14+00:00

I have a data frame with one (string) column and I’d like to split

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I have a data frame with one (string) column and I’d like to split it into two (string) columns, with one column header as ‘fips' and the other 'row'

My dataframe df looks like this:

          row
0    00000 UNITED STATES
1    01000 ALABAMA
2    01001 Autauga County, AL
3    01003 Baldwin County, AL
4    01005 Barbour County, AL

I do not know how to use df.row.str[:] to achieve my goal of splitting the row cell. I can use df['fips'] = hello to add a new column and populate it with hello. Any ideas?

         fips       row
0    00000 UNITED STATES
1    01000 ALABAMA 
2    01001 Autauga County, AL
3    01003 Baldwin County, AL
4    01005 Barbour County, AL
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1 Answer

  1. Editorial Team

    There might be a better way, but this here’s one approach:

                                row
    0       00000 UNITED STATES
    1             01000 ALABAMA
    2  01001 Autauga County, AL
    3  01003 Baldwin County, AL
    4  01005 Barbour County, AL

    df = pd.DataFrame(df.row.str.split(' ',1).tolist(),
                                 columns = ['fips','row'])

       fips                 row
0  00000       UNITED STATES
1  01000             ALABAMA
2  01001  Autauga County, AL
3  01003  Baldwin County, AL
4  01005  Barbour County, AL
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