EXHIBIT 21

INFINITY PROPERTY AND CASUALTY CORPORATION

EXHIBIT 21 – SUBSIDIARIES OF THE REGISTRANT

The following is a list of subsidiaries of Infinity at December 31, 2010. All corporations are subsidiaries of Infinity and, if indented, subsidiaries of the company under which they are listed.

Name of Company	Incorporated		Percentage of Ownership
Hillstar Insurance Company		Indiana		100
Infinity Financial Centers, LLC		Delaware		100
Infinity Insurance Company		Indiana		100
Infinity Agency of Texas, Inc.		Texas		100
Infinity Assurance Insurance Company		Ohio		100
Infinity Auto Insurance Company		Ohio		100
Budget Insurance Premium, Inc.		Ohio		100
Leader Group, Inc.		Ohio		100
Leader Managing General Agency, Inc.		Texas		100
Infinity Casualty Insurance Company		Ohio		100
Atlanta Casualty Group, Inc.		Georgia		100
Atlanta Casualty General Agency, Inc.		Texas		100
Infinity County Mutual Insurance Company		Texas		(a	)
Infinity General Insurance Company		Ohio		100
Infinity Indemnity Insurance Company		Indiana		100
Infinity Preferred Insurance Company		Ohio		100
Infinity Premier Insurance Company		Indiana		100
Infinity Reserve Insurance Company		Ohio		100
Infinity Safeguard Insurance Company		Ohio		100
Granite Finance Company, Inc.		Texas		100
Infinity Security Insurance Company		Indiana		100
Infinity Select Insurance Company		Indiana		100
Infinity Specialty Insurance Company		Ohio		100
Infinity Standard Insurance Company		Indiana		100
Infinity Property and Casualty Services, Inc.		Georgia		100
Casualty Underwriters, Inc.		Georgia		51
Windsor Group, Inc.		Georgia		100
Texas Windsor Group, Inc.		Texas		100
The Infinity Group, Inc.		Indiana		100

(a) Denotes company that is affiliated but not owned.