Texas Civil Practice and Remedies Code - CIV PRAC & REM § 15.032. Insurance

Suit against fire, marine, or inland insurance companies may also be commenced in any county in which the insured property was situated.  A suit on a policy may be brought against any life insurance company, or accident insurance company, or life and accident, or health and accident, or life, health, and accident insurance company in the county in which the company's principal office in this state is located or in the county in which the loss has occurred or in which the policyholder or beneficiary instituting the suit resided at the time the cause of action accrued.