user: Question: Which Population is the lowest one that has a Median family income of $74,905, and a Number of households smaller than 145790?
Columns: ['County', 'Per capita income', 'Median household income', 'Median family income', 'Population', 'Number of households']
Types: ['text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Clackamas', '$31,785', '$62,007', '$74,905', 375992.0, 145790.0]
SQL:

assistant: SELECT MIN("Population") FROM "Table" WHERE "Median family income" = '$74,905' AND "Number of households" < 145790.0;