"Elections occur in every even-numbered year for some federal and most state and local government offices in the United States.
Some states and local jurisdictions hold elections in odd-numbered years.
More: from U.S. Elections in Brief
Estimates of the voting-age population for all 50 states (from the U.S. Census).
"Every two years, Georgia voters elect members of the legislature. These elections occur in even-numbered years (e.g., 2008, 2010, 2012). The qualifications for holding office in both houses, as well as the size of both chambers, are established in the Georgia state constitution."
"All elections in Georgia are overseen by the Elections Division of the secretary of state's office. County registrars perform the duties of registering voters and conducting elections at the local level. In several smaller counties this function is handled by the judge of the probate court. At the state level it is the secretary of state's responsibility to tabulate official returns and certify the outcome, thus pronouncing a candidate duly elected to office."
More from the The New Georgia Encyclopedia
Estimate of the voting age population for Georgia (from the U.S. Census).