How Cost-of-Living Adjustments (COLA) Widen the Geographic Gap

Another fascinating dynamic that affects state-by-state averages is the annual Cost-of-Living Adjustment (COLA). Designed to protect the purchasing power of retirees against inflation, COLA is applied as a strict percentage increase across the board. While this seems perfectly fair on paper, the mathematical reality is that it widens the absolute dollar gap between high-benefit states and low-benefit states every single year.

Consider a hypothetical 2.8 percent COLA applied in a given year. If an average retiree in Connecticut is receiving $2,200 a month, a 2.8 percent increase adds $61.60 to their monthly check. Meanwhile, a retiree in Mississippi receiving $1,800 a month will see an increase of only $50.40. In just one year, the gap between the two retirees widens by over $11 a month, or $132 a year. Compounded over a 20- or 25-year retirement, these percentage-based adjustments cause high-benefit states to pull significantly further ahead in gross dollar amounts.

This compounding effect underscores the importance of maximizing your benefit before you claim. Strategies such as working a full 35 years to eliminate zero-income years, coordinating spousal benefits, and delaying your claim until age 70 can dramatically increase your base amount—which in turn ensures you receive the maximum possible dollar increase whenever a COLA is announced.