invalid input syntax for integer

I've just created my first table and I'm trying to load date into it via
the \copy command. Each time i get the invalid input syntax, no matter
what the type for the column is set too. I've tried int,integer and now
numeric.

Column | Type | Modifiers
-------------+-----------------------+-----------
county_code | integer |
cntyname | character varying(30) |

\copy fips_codes_county FROM '/var/lib/pgsql/files/county.csv' USING
DELIMITERS ','

This is a sample of the file i'm attempting to load, a simple ascii/csv
file.

cat county.csv|more
county_code,cntyname
1,ANDERSON
3,ANDREWS
5,ANGELINA
7,ARANSAS
9,ARCHER
11,ARMSTRONG
13,ATASCOSA
15,AUSTIN
17,BAILEY
19,BANDERA
21,BASTROP
23,BAYLOR
25,BEE
27,BELL
29,BEXAR
31,BLANCO

thanks...