CoreLogic (CLGX) the data analytics group spun off by First American Financial (FAF), expanded its data-set coverage to 3,100 counties, representing 99.8% of the US population. According to CoreLogic, the public record county assessor data includes land dimensions, legal descriptions, ownership, and tax and value information. The company then links the information to current and historic transaction data such as deeds, mortgages, pre-foreclosure and other involuntary liens. CoreLogic databases combines mortgage information with motor-vehicle records, criminal background records, national eviction information, credit information and more. CoreLogic covers 98.7% of all US real estate property records, 80% of mortgage applications, 85% of mortgage loan servicing performance information and 97% of loan-level, non-agency mortgage-backed securities (MBS). It totals more than 550m transaction records spanning more than 40 years. CoreLogic develops algorithms and models to analyze the information. "This milestone enables our clients to access nationwide county-assessor-specific real estate data and leverage the growing suite of analytics built upon this information to grow and retain their business," said George Livermore, group executive of data and analytics at CoreLogic. Write to Jon Prior. Disclosure: the author holds no relevant investments.