According to an analysis done May 4 for CNN by VaccineFinder, 78.8% of people in the United States live within 5 miles of locations that offer all three vaccines. … VaccineFinder powers Vaccines.gov, the federal government website where you can search for Covid-19 vaccines by ZIP code. Searches there show particularly easy access to all three vaccines for people who live in big cities, but even those who live in small towns have a choice of all three, although sometimes it might mean a bit of a drive.