Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the highest Number of Households, when Per Capita Income is "$25,557", and when Population is less than "22,330"?

### Inputs:
table_name: table, columns: ['County', 'Per capita income', 'Median household income', 'Median family income', 'Population', 'Number of households']

### Response:
SELECT MAX Number of households FROM table WHERE Per capita income = $25,557 AND Population < 22,330