Direct Answer
Pfizer reports revenue across 3 geographic regions in its fiscal 2025 Form 10-K. United States is the largest, with $37.1 billion of revenue (59% of the total), followed by International Developed Markets at $16.2 billion (26%). 59% of revenue came from the United States.
How Does Pfizer Make Money?
No single region supplies a majority of revenue: the largest, United States, is 59%, which spreads Pfizer's exposure across several demand drivers. Between fiscal 2024 and 2025, International Emerging Markets grew fastest (+4.9%) and United States slowest (-4.2%), so the revenue mix tilts toward International Emerging Markets while that gap lasts.
| Region | FY2025 revenue | FY2024 revenue | Share of revenue | Change |
|---|---|---|---|---|
| United States | $37.1 billion | $38.7 billion | 59.2% | -4.2% |
| International Developed Markets | $16.2 billion | $16.1 billion | 25.9% | 0.8% |
| International Emerging Markets | $9.3 billion | $8.9 billion | 14.9% | 4.9% |
What the Segment Figures Do Not Show
The rows above add up to 100% of Pfizer's reported revenue for fiscal 2025; the difference is intersegment eliminations, corporate revenue or items the company reports outside its segments. Segment definitions are management's choice and change when a company reorganizes, in which case it restates prior years in the next filing, so a multi-year comparison should use the figures from a single filing. Revenue shows where sales come from, not where profit or cash is earned: a small segment can carry most of the margin.
Where These Numbers Come From
Every figure on this page is a value Pfizer reported in the segment note and revenue disclosures of its Form 10-K filed February 26, 2026 (accession 0000078003-26-000026), read from the SEC's Financial Statement Data Sets. The prior-year column is the comparative figure from that same filing, so it reflects any restatement for a change in segments. Category names are the company's own XBRL labels, lightly reformatted for reading.
Rows that only total other rows (for example a "Products" line beside the individual products) are left out so nothing is counted twice. This page is educational and describes reported history for fiscal 2025; it is not a forecast or a recommendation.
Frequently Asked Questions
What are Pfizer's main regions?
In its fiscal 2025 Form 10-K, Pfizer reports revenue for United States, International Developed Markets and International Emerging Markets.
Which part of Pfizer brings in the most revenue?
United States, with $37.1 billion of revenue in fiscal 2025, or 59% of the total.
How much of Pfizer's revenue comes from outside the United States?
41% in fiscal 2025, by the geographic breakdown Pfizer reports in its Form 10-K. Companies assign revenue to regions differently (customer location, shipping address or selling entity), so check the filing's definition before comparing companies.