To access Brookfield Zoo Chicago's Annual Report and Audited Financial Statements, please click on each link below. 2023 Annual Report Chicago Zoological Society Audited Financial Statements - Fiscal Year 2023 Chicago Zoological Society Select 990 Info - Fiscal Year 2023 2022 Annual Report Chicago Zoological Society Audited Financial Statements - Fiscal Year 2022 Chicago Zoological Society Select 990 Info - Fiscal Year 2022 Chicago Zoological Society Audited Financial Statements - Fiscal Year 2021 Chicago Zoological Society Select 990 Info - Fiscal Year 2021 Chicago Zoological Society Select 990 Info - Fiscal Year 2020 Chicago Zoological Society Audited Financial Statements - Fiscal Year 2019 Chicago Zoological Society Select 990 Info - Fiscal Year 2019