The place to go for foreclosure data by zip code is the Federal Reserve Bank of New York. Just this month they announced a new service: Dynamic Maps of Nonprime Mortgage Conditions in the United States.
The maps show the following information for subprime and alt-A loans for each state and most of the counties and zip codes in the United States:
• Loans per 1,000 housing units• Loans in foreclosure per 1,000 housing units• Loans real estate owned (REO) per 1,000 housing units• Share of loans that are adjustable rate mortgages (ARMs)• Share of loans for which payments are current• Share of loans that are 90-plus days delinquent• Share of loans in foreclosure• Median combined loan-to-value ratio (LTV) at origination• Share of loans with low credit score (FICO) and high LTV at origination• Share of loans with low- or no documentation• Share of ARMs with initial reset in the next 12 months• Share of loans with a late payment in the past 12 months
The maps will be updated monthly. There are also data tables with more statistics for states.
Additional mortgage foreclosure resources are available from the Federal Reserve Board.