CREATE TABLE table_21835 ("Rank" FLOAT, "County" CLOB, "State" CLOB, "Land area  ( km\\u00b2 ) " CLOB, "Land area  ( mi\\u00b2 ) " CLOB, "April 1 ,  2010 census" FLOAT, "April 1 ,  2010 density  ( /km\\u00b2 ) " FLOAT, "April 1 ,  2010 density  ( /mi\\u00b2 ) " FLOAT, "July 1 ,  2010 official estimate" FLOAT, "July 1 ,  2010 density  ( /km\\u00b2 ) " FLOAT, "July 1 ,  2010 density  ( /mi\\u00b2 ) " FLOAT, "July 1 ,  2011 official estimate" FLOAT, "July 1 ,  2011 density  ( /km\\u00b2 ) " FLOAT, "July 1 ,  2011 density  ( /mi\\u00b2 ) " FLOAT, "Mid-2010 to mid-2011 change  ( Absolute ) " FLOAT, "Mid-2010 to mid-2011 change  ( % ) " CLOB, "County seat or courthouse" CLOB)

Name the total number of county seat or courthouse for april 1 2010 denisty is 2205
SELECT COUNT("County seat or courthouse") FROM table_21835 WHERE "April 1, 2010 density (/mi\u00b2)" = '2205'
SELECT COUNT("County seat or courthouse") FROM "table_21835" WHERE "April 1, 2010 density (/mi\u00b2)" = '2205'