Start with the answer
Medical Equipment Preparers pay in Nashville-Davidson--Murfreesboro--Franklin, TN and Vallejo, CA
The May 2025 BLS OEWS median for Medical Equipment Preparers is $49,260 per year in Nashville-Davidson--Murfreesboro--Franklin, TN. It is $82,610 per year in Vallejo, CA. Nashville-Davidson--Murfreesboro--Franklin, TN is 40.4% below Vallejo, CA on the published median.
Both rows use SOC 31-9093 and the same annual wage metric. Median means the middle of each area's published wage spread. It is not one worker's pay. The larger median is not proof that one place gives a better job or a better result. It is one wage fact from one source period.
BLS lists 540 wage and salary jobs in Nashville-Davidson--Murfreesboro--Franklin, TN and 140 in Vallejo, CA. Those are survey job counts, not open posts. Read pay, job scale, local share, and price level as separate facts before you make a choice.
Evidence: bls-oews-may-2025 · Rule: same-soc-same-metric-pair · nominal-median-gap · employment-not-openings