United States was Westlake’s largest region in fiscal 2025, bringing in $7.95B of $11.17B (71%).
| Geography | FY 2009 | FY 2010 | FY 2011 | FY 2012 | FY 2013 | FY 2014 | FY 2015 | FY 2016 | FY 2017 | FY 2018 | FY 2019 | FY 2020 | FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| United States | $10.90B | $8.96B | $8.75B | $7.95B | |||||||||||||
| Other | $1.75B | $1.26B | $1.20B | $1.08B | |||||||||||||
| Other Foreign Countries | — | — | — | — | |||||||||||||
| Canada | $1.05B | $808.00M | $792.00M | $777.00M | |||||||||||||
| Germany | $875.00M | $602.00M | $594.00M | $583.00M | |||||||||||||
| Foreign | — | — | — | — | |||||||||||||
| Mexico | $228.00M | $217.00M | $206.00M | $194.00M | |||||||||||||
| China | $262.00M | $220.00M | $195.00M | $162.00M | |||||||||||||
| Brazil | $353.00M | $215.00M | $142.00M | $153.00M | |||||||||||||
| Italy | $200.00M | $135.00M | $145.00M | $144.00M | |||||||||||||
| Taiwan | — | — | — | — | |||||||||||||
| Taiwan, Province Of China | — | — | — | — | |||||||||||||
| France | $172.00M | $138.00M | $120.00M | $125.00M | |||||||||||||
| Switzerland | — | — | — | — | |||||||||||||
| Belgium | — | — | — | — | |||||||||||||
| Total | $15.79B | $12.55B | $12.14B | $11.17B |
Westlake brought in $11.17B from its nine regions in fiscal 2025, the year ended December 31, 2025. That was down 8.0% from $12.14B in fiscal 2024. United States was the largest at $7.95B (71.2%), ahead of Other at $1.08B (9.7%) and Canada at $777.00M (7.0%). The other six regions brought in $1.36B combined.
Compared with fiscal 2024, every region above 2% of revenue shrank. Germany held up best, down 1.9% to $583.00M, and Other fell the most, down 9.9% to $1.08B. From fiscal 2022 to 2025, combined revenue from these regions fell from $15.79B to $11.17B, a compound annual decline of 10.9%. United States' share of the total rose from 69.0% to 71.2%.
Performance Materials was Westlake’s largest segment in fiscal 2025, bringing in $4.02B of $11.17B (36%).
| Segment | FY 2009 | FY 2010 | FY 2011 | FY 2012 | FY 2013 | FY 2014 | FY 2015 | FY 2016 | FY 2017 | FY 2018 | FY 2019 | FY 2020 | FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Performance Materials | $6.96B | $4.66B | $4.63B | $4.02B | |||||||||||||
| Essential Materials | $4.04B | $3.68B | $3.20B | $3.00B | |||||||||||||
| Housing Products | $3.86B | $3.49B | $3.64B | $3.51B | |||||||||||||
| Pvc, Caustic Soda & Other | — | — | — | — | |||||||||||||
| Polyethylene | — | — | — | — | |||||||||||||
| Building Products | — | — | — | — | |||||||||||||
| Styrene, Feedstock & Other | — | — | — | — | |||||||||||||
| Ethylene, Styrene & Other | — | — | — | — | |||||||||||||
| Infrastructure Products | $922.00M | $718.00M | $673.00M | $635.00M | |||||||||||||
| Total | $15.79B | $12.55B | $12.14B | $11.17B |
Westlake brought in $11.17B from its four segments in fiscal 2025, the year ended December 31, 2025. That was down 8.0% from $12.14B in fiscal 2024. Performance Materials was the largest at $4.02B (36.0%), ahead of Housing Products at $3.51B (31.5%) and Essential Materials at $3.00B (26.9%). The remaining segment, Infrastructure Products, brought in $635.00M.
Compared with fiscal 2024, every segment above 2% of revenue shrank. Housing Products held up best, down 3.6% to $3.51B, and Performance Materials fell the most, down 13.1% to $4.02B. From fiscal 2022 to 2025, combined revenue from these segments fell from $15.79B to $11.17B, a compound annual decline of 10.9%. Performance Materials' share of the total fell from 44.1% to 36.0%.
Performance & Essential Materials was Westlake’s largest segment in fiscal 2025, bringing in $4.02B of $7.53B (53%).
| Statement Business Segments | FY 2009 | FY 2010 | FY 2011 | FY 2012 | FY 2013 | FY 2014 | FY 2015 | FY 2016 | FY 2017 | FY 2018 | FY 2019 | FY 2020 | FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Performance & Essential Materials | $6.96B | $3.68B | $3.20B | $4.02B | |||||||||||||
| Housing & Infrastructure Products | $3.86B | $4.21B | $4.32B | $3.51B | |||||||||||||
| Vinyls | — | — | — | — | |||||||||||||
| Olefins | — | — | — | — | |||||||||||||
| Total | $10.83B | $7.89B | $7.52B | $7.53B |
Westlake brought in $7.53B from its two segments in fiscal 2025, the year ended December 31, 2025. That is less than the $11.17B it reports by geography, so these segments do not cover all of its revenue. Performance & Essential Materials was the largest at $4.02B (53.4%), ahead of Housing & Infrastructure Products at $3.51B (46.6%).
Compared with fiscal 2024, Performance & Essential Materials grew 25.6% to $4.02B, while Housing & Infrastructure Products fell 18.6% to $3.51B.
Westlake (WLK) reports its revenue by geography, by segment and by statement business segments. In fiscal 2025, United States was its largest region, bringing in $7.95B (71.2% of the total), followed by Other at $1.08B (9.7%).
United States was Westlake's largest region in fiscal 2025, bringing in $7.95B, or 71.2% of the $11.17B total across its nine regions.
Performance Materials was Westlake's largest segment in fiscal 2025, bringing in $4.02B, or 36.0% of the $11.17B total across its four segments.
Performance & Essential Materials grew faster than Housing & Infrastructure Products in fiscal 2025, up 25.6% from $3.20B to $4.02B. Housing & Infrastructure Products fell 18.6% to $3.51B.
Every figure comes from Westlake's annual financial filings, as reported. Each line keeps the name Westlake gives it, and years follow its fiscal calendar.
Westlake's revenue by geography goes back to fiscal 2009, with figures through fiscal 2025. The latest four fiscal years are free to view, and the full history is available with a Business Quant subscription.