Independent Bank (IBTX) 8-K Independent Bank Group, Inc. Declares Quarterly Dividend

Exhibit 99.1

Press Release

For Immediate Release

Independent Bank Group, Inc. Declares Quarterly Dividend

McKinney, Texas, January 31, 2018 -- Independent Bank Group, Inc. (NASDAQ: IBTX), the holding company for Independent Bank, announced that its Board of Directors has declared a quarterly cash dividend in the amount of $0.12 per share of common stock. The dividend will be payable on February 22, 2018 to stockholders of record as of the close of business on February 12, 2018.

About Independent Bank Group

Independent Bank Group, through its wholly owned subsidiary, Independent Bank, provides a wide range of relationship-driven commercial banking products and services tailored to meet the needs of businesses, professionals and individuals. Independent Bank Group operates in four market regions located in the Dallas/Fort Worth, Austin and Houston, Texas and the Colorado Front Range areas.

Contacts:

Analysts/Investors:

Michelle Hickox

Executive Vice President and Chief Financial Officer

(972) 562-9004

mhickox@ibtx.com

Media:

Peggy Smolen

Marketing & Communications Director

(972) 562-9004

psmolen@ibtx.com

Source: Independent Bank Group, Inc.