Florida – vested for partial retirement benefits after 6 years; full benefits are given after 30 years of employment. Right now, full benefits are at about 40% of a teacher’s average pay for the last 5 years of service.

Alabama: You can retire at age 60 with at least 10 years of service, or at any age after 25 years

Arkansas: A member may retire at age 60 with 5 or more
years of credited service, or after 28 years of
credited service regardless of age.

Louisiana: Your eligibility to retire is based on your age and years of serv­ice. One of the requirements below must be met in order to receive a retirement benefit from TRSL:

5 years of service or more at age 60 or later
25 years of service or more at age 55 or later
30 years of service or more regardless of age
At 20 years of service you may retire at any age but your benefit will be reduced on an actuarial basis which is based on your age, length of service and number of years from your regular retirement age.

Georgia: You are eligible for monthly retirement benefits if you have completed one of the following:

v 30 years of creditable service regardless of age, or

v 10 years of creditable service AND 60 years of age.

2) What about early retirement?

You may retire with 25 years of creditable service. (If you retire under this provision your benefit will be permanently reduced by one-twelfth of 7% for each month you are below 60, OR 7% for each year or fraction of year by which you have less than 30 years, whatever is less.) Also be aware that you will not be eligible for cost of living increases until such time as you reach 60 years of age or at the time you would have obtained 30 years of service.

Texas: Couldn’t really find any details, but here’s the site:

Alaska: You may retire at any age with unreduced benefits if you have:

20 paid-up years of TRS membership service;
20 paid-up years of combined TRS membership and Alaska BIA service, if the last five years are membership service;
20 paid-up years of combined years of part-time and full-time TRS membership service (you must have at least one-half year of membership service as a part-time teacher or one full year of membership service as a full-time teacher in each of 20 school years; or
25 paid-up years of credited service, if the last five years are TRS membership service.

Hawaii: Sorry, but this is all I could find:

Missouri: Under Missouri’s “rule of 80,” he or she is eligible for full retirement benefits when his or her age and years of experience equal 80; the teacher in our example must work 27.5 years in order to qualify.

Florida: Florida teachers can retire anytime before reaching age 62 or 30 years service, but should they choose to retire and pull their pension early, educators enrolled in the Florida Retirement System Pension Plan are subject to an early retirement reduction. The benefit will be reduced 5% for each year the educator’s age at retirement is under normal retirement age.

Tennessee: State employees and teachers are eligible to receive a reduced monthly benefit upon
completion of 25 years of service.

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Phew, that was a lot of digging, hope that helps you out and good luck in your future as a teacher