WASHINGTON — Senior Obama administration officials, including the White House chief of staff, knew as early as 2009 that Hillary Rodham Clinton was using a private email address for her government correspondence, according to some 3,000 pages of correspondence released by the State Department late Tuesday night

The chief of staff, Rahm Emanuel, requested Clinton’s email address on Sept. 5, 2009, according to one email. His request came three months after top Obama strategist David Axelrod asked the same question of one of Clinton’s top aides.

But it’s unclear whether the officials realized Clinton, now the leading Democratic presidential candidate, was running her email from a server located in her home in Chappaqua, New York — a potential security risk and violation of administration policy.

The emails ranged from the mundane details of high-level public service — scheduling secure lines for calls, commenting on memos and dealing with travel logistics — to an email exchange with former President Jimmy Carter and a phone call with former Secretary of State Condoleezza Rice. Carter mildly chided Clinton about how to handle the release of two hostages held in North Korea, while Clinton recounted that Rice, her predecessor, “called to tell me I was on strong ground” regarding Israel.

One day in November 2009, aide Huma Abedin forwarded Clinton a list of 11, back-to-back calls she was scheduled to make to foreign ministers around the world.