By April 2026, California was the state in the United States with most square feet of LEED certified buildings. The LEED certified buildings in California amounted to **** billion gross square feet. That was much higher than Texas, New York, and Illinois, the following states in the ranking. It is however important to notice that the figures provided are cumulative, which means that the state of Massachusetts had nearly *** million gross square footage in LEED certifications as of April 2026, that was a figure that also included the certificates issued in previous years.
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USGBC. (April 26, 2026). Cumulative LEED-certified building surface area in the United States as of May 2026, by state (in million gross square feet) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 15, 2026, from /statistics/664047/leed-certified-surface-area-by-key-state-us/
USGBC. "Cumulative LEED-certified building surface area in the United States as of May 2026, by state (in million gross square feet)." Chart. April 26, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 15, 2026. /statistics/664047/leed-certified-surface-area-by-key-state-us/
USGBC. (2026). Cumulative LEED-certified building surface area in the United States as of May 2026, by state (in million gross square feet). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 15, 2026. /statistics/664047/leed-certified-surface-area-by-key-state-us/
USGBC. "Cumulative Leed-certified Building Surface Area in The United States as of May 2026, by State (in Million Gross Square Feet)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 26 Apr 2026, /statistics/664047/leed-certified-surface-area-by-key-state-us/
USGBC, Cumulative LEED-certified building surface area in the United States as of May 2026, by state (in million gross square feet) ÌÇÐÄÆƽâ°æ, /statistics/664047/leed-certified-surface-area-by-key-state-us/ (last visited July 15, 2026)
Cumulative LEED-certified building surface area in the United States as of May 2026, by state (in million gross square feet) [Graph], USGBC, April 26, 2026. [Online]. Available: /statistics/664047/leed-certified-surface-area-by-key-state-us/
