The online address services are between 75 and 100 percent accurate as of March 2015, according to Top Ten Reviews. The average accuracy of the services in this category is 80.5 percent.
The only service with reported 100 percent accuracy is FindOutTheTruth.com. Other benefits of the service include extremely detailed, personalized reports. However, this non-automated service scores only 8.2 out of 10 because of its complexity, which makes it hard to use.
The top-rated address search service is US Search, with 95 percent reported accuracy. With multiple search options and a detailed search results preview, it scores 9.78 out of 10. Other highly accurate address search services include Intelius, Spokeo, Instant Checkmate and PeopleSmart.