This study examined the profiles of L2 strategy use and their association with different types of L2 reading achievement. A total of 1491 college students responded to a strategy use questionnaire evaluating the efficiency of strategy use immediately after they took an English reading test. Results of latent profile analysis revealed: (1) there were three profiles of strategy users, namely, low-efficiency, moderate-efficiency, and high-efficiency strategy users; (2) higher strategy use profiles had a higher probability of belonging to higher levels of reading achievers; meanwhile (3) lower-efficiency strategy users displayed to a substantial extent the probability (albeit relatively small) of belonging to higher-level reading achievers and higher-strategy users also had probability of belonging to lower-level reading achievers. The study added value by focusing on the efficiency aspect of strategy use and by providing granular information regarding the uneven membership belongingness of different strategy users across different types of L2 readers.