CREATE TABLE table_75651 ("Borough or Census Area" CLOB, "Per capita income" CLOB, "Median household income" CLOB, "Median family income" CLOB, "Population" FLOAT, "Number of households" FLOAT)

What is the population of the area with a median family income of $71,278?
SELECT COUNT("Population") FROM table_75651 WHERE "Median family income" = '$71,278'
SELECT COUNT("Population") FROM "table_75651" WHERE "Median family income" = '$71,278'