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Pharmacies in Ontario, CA

40 pharmacies listed in Ontario, California. 39 with a phone number and 35 with a website.

Ontario accounts for 0% of the pharmacies listed in California and ranks #34 among California cities for pharmacies.

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Quick answer

Ontario, CA has 40 pharmacies listed on USA Business Search. 39 list a phone number and 35 list a website. The most listings are in ZIP codes 91761, 91762, 91764.

Updated October 2026
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How to choose a pharmacy in Ontario

  • Call your insurance to confirm the provider is in network before the first visit.
  • Ask how new-patient appointments, telehealth and after-hours questions work.
  • Bring a list of current medications to the first appointment.

Check the license: California State Board of Pharmacy.

Common questions

How many pharmacies are listed in Ontario, California?

USA Business Search shows 40 pharmacies in Ontario. 39 list a phone number and 35 list a website.

Which ZIP codes do these listings cover?

They include ZIP codes 91761, 91762, 91764.

How do I choose a pharmacy in Ontario?

Call your insurance to confirm the provider is in network before the first visit. Ask how new-patient appointments, telehealth and after-hours questions work. Check the license with the California State Board of Pharmacy.

How do pharmacies in Ontario compare with the rest of California?

Ontario has 0% of the 8,152 pharmacies listed in California, which ranks #34 among California cities for this category.

How do I add or fix a listing?

Listings are free. Use Add your business, or the Claim or fix link on any listing.

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