There were 2,090 total OASDI beneficiaries in Washington zip code 99320 in 2018, a 2.7 percent increase over 2017, which had only 2,035 total beneficiaries, according to the official Social Security Administration website.
There were 60 total OASDI beneficiaries in Washington zip code 99356 in 2018, a 14.3 percent decrease from 2017, which had only 70 total beneficiaries, according to the official Social Security Administration website.