CREATE TABLE table_1637 ("Municipality" CLOB, "Shire" CLOB, "Population" FLOAT, "Area in km 2" CLOB, "Density in inhab\\\\km 2" CLOB, "Distance to San Sebastians city centre in km" CLOB)

how many shire in the land of area in km 2 is 27.17
SELECT COUNT("Shire") FROM table_1637 WHERE "Area in km 2" = '27.17'
SELECT COUNT("Shire") FROM "table_1637" WHERE "Area in km 2" = '27.17'