li-wen-li/uszipcodes: US Zip Code (with long/lat)

This package contains zip code with its City, State, Latitude, Longitude, Timezone, Daylight savings time flag and geopoint. You can also find three functions, get_zip(), contain_letter(), clean_zip(). If you have zip codes included within street adress data, use get_zip() to extract zip codes. Use contain_letter() to check if your zip code data includes letters due to data entry error. Use clean_zip() to change those containing zip codes containing letters to NA value, also use this function to add "0" to those places with 3/4 digit zip codes.

install.packages("remotes")
remotes::install_github("li-wen-li/uszipcodes")