CREATE TABLE table_64163 ("County" CLOB, "Per capita income" CLOB, "Median household income" CLOB, "Median family income" CLOB, "Population" FLOAT, "Number of households" FLOAT)

What's the population that has a median family income of $50,553?
SELECT COUNT("Population") FROM table_64163 WHERE "Median family income" = '$50,553'
SELECT COUNT("Population") FROM "table_64163" WHERE "Median family income" = '$50,553'