Question: How many households have a Median household income of $43,889?
SQL: SELECT AVG("Number of households") FROM "2-1777876-1" WHERE "Median household income" = '$43,889';

Question: Which Population has a Median family income of $53,946?
SQL: SELECT MAX("Population") FROM "2-1777876-1" WHERE "Median family income" = '$53,946';