Let me help you out here. First of all the BEST way to get addresses in a specific area you want to clean in is to go to those neighborhoods and get the addresses yourself.
Example: you are on 160th St in your city. Just drive down the road slowly (hopefully with someone with you) and start naming off the addresses while the person with you writes them down.
There is no way this method is faster than
ZILLOW.com
And cheaper, and you are not gunna have the police called on you for slowing driving up and down each street clearly scanning the homes for the house numbers.
Go to Zillow.
Put in just the zip code of the area you want, then zoom in and pan till you are over the hood you want.
Then zoom in a tad bid more, hold your mouse over each lot, one click brings up the address.
Top of column, street name.. Below all the house numbers.
Then up the next street.
I'm working to get 10,000 homes on a data base that I rotate with mailers.
BTW... how many homes have you seen that it is hard to see the house numbers. House numbers removed for painting, house numbers to small, covered by bushes, who knows.
But, Todds idea will work. I prefer the hi tech way.
My old town had a very good county tax assessors site. There I had owners name, owners mailing address ( in case it is a PO box ) sq ft, when they bought it, how much they paid etc.
Spokane has an ok site, not near as good.