Exhibit 21

TCF FINANCIAL CORPORATION

Subsidiaries of Registrant

(As of December 31, 2005)

		Names under which Subsidiary
Subsidiary	State of Incorporation	Does Business
TCF Insurance Agency, Inc.	Minnesota	TCF Insurance Agency, Inc.
		TCF Insurance
TCF Investments, Inc.	Minnesota	TCF Investments, Inc.
TCF Foundation	Minnesota	TCF Foundation
TCF Mortgage Corporation	Minnesota	TCF Mortgage Corporation
TCF Management Corporation	Minnesota	TCF Management Corporation
		TCF Real Estate Management (FL)
TCF Agency, Inc.	Minnesota	TCF Agency Minnesota, Inc.
		TCF Insurance Agency Minnesota, Inc. (UT)
TCF Agency Insurance Services, Inc.	Minnesota	TCF Agency Insurance Services, Inc.
Winthrop Resources Corporation	Minnesota	Winthrop Resources Corporation
		TCF Small Business Leasing
TCF Equipment Finance, Inc.		TCF Equipment Finance, Inc. TCF Leasing, Inc.
TCF National Bank	United States	Great Lakes National Bank Michigan
		TCF National Bank – Minnesota
		TCF National Bank – Michigan
		TCF National Bank – Illinois
		TCF National Bank – Wisconsin
		TCF National Bank – Lakeshore
		TCF National Bank-Colorado
		TCF Home Loans
Service Corporation II	Michigan	Service Corporation II
Great Lakes Mortgage LLC	Michigan	Great Lakes Mortgage LLC
Golf Course Properties, LLC	Michigan	Golf Course Properties, LLC
TCF Investments Management, Inc.	Minnesota	TCF Investments Management, Inc.
TCF Portfolio Services, Inc.	Minnesota	TCF Portfolio Services, Inc.
TCF Illinois Realty Investments, LLC	Minnesota	TCF Illinois Realty Investments, LLC
Twin Cactus Development LLC	Minnesota	Twin Cactus Development LLC
TCF International Operations, Inc.	Minnesota	TCF International Operations, Inc.
TCF International Management Services, LLC	Minnesota	TCF International Management Services, LLC
Winthrop Resources Holdings I, LLC	Minnesota	Winthrop Resources Holdings I, LLC