Search ZIP codes for a county
search_county(county_name, state_abb, ...)tibble of all ZIP codes for given county name
middlesex <- search_county("Middlesex", "NJ")
alameda <- search_county("alameda", "CA")
search_county("ST BERNARD", "LA", similar = TRUE)$zipcode
#> [1] "70032" "70043" "70044" "70075" "70085" "70092"