On Wednesday, June 18, the Social Security Administration (SSA) will disburse the next round of payments according to this month's schedule, including Social Security Disability Insurance (SSDI) and benefits for active affiliates.

Here's the average Social Security benefit for people age 65. Waiting longer to claim benefits, even past retirement age, can boost monthly payments

Social Security retirement claims tend to follow a seasonal pattern each year, and they increase over time with the aging of the population, says Jack Smalligan, senior policy fellow at the Urban Institute. But this spring, something different happened, he says: an unexpected surge in the number of people applying for retirement benefits.