"In 2020, nearly $80 billion was budgeted for local police departments nationwide (table 15). The estimated 110 departments serving 250,000 or more residents in 2020 accounted for 43% of this funding. (See table 4.) These departments represented fewer than 1% of all local police departments but employed about 41% of all full-time sworn local officers. Police departments serving fewer than 10,000 residents had the smallest budget per FTE sworn officer ($109,000)."
Source
Sean E. Goodison, PhD. Local Police Departments Personnel, 2020. November 2022. NCJ305187. US Dept. of Justice, Bureau of Justice Statistics.