Standard&Poor's Ratings Services assigned its 'AAA' program rating and 'AA-' school issuer credit rating (ICR) and stable outlook to Leander Independent School District, Texas' series 2012 unlimited-tax general obligation (GO) refunding bonds and affirmed its 'AAA' program rating and 'AA-' ICR, with a stable outlook, on the district's existing GO debt. Standard&Poor's also affirmed its 'AA-' long-term rating and underlying rating (SPUR), with a stable outlook, on the district's debt. The 'AAA' program rating reflects our assessment of the district's eligibility for, and participation in, the Texas Permanent School Fund Bond Guarantee. The 'AA-' rating reflects our opinion of the district's: Access to Austin's expanding economy, Very strong wealth and income, and Very strong general fund