Table: kansas_income_by_county
Columns: county
per_capita_income
median_household_income
median_family_income
population
number_of_households

Question: Which Median family income has a Median household income of $43,125?
SQL: SELECT "median_family_income" FROM kansas_income_by_county WHERE "median_household_income" = '$43,125'

Question: How many people have a Median household income of $37,759?
SQL: SELECT SUM("population") FROM kansas_income_by_county WHERE "median_household_income" = '$37,759'