Courthouses in Karnes City, Texas, the US. Courthouses locations in Karnes City, Texas. Find the nearest courthouses locations, near you. All types of business services Accounting ATM Bank Courthouse Finance Insurance Lawyer Real estate School All courthouses in Karnes City Karnes County Jusltice of Peace Courthouse +1 830-780-4373 200 West Calvert Avenue, Karnes City, Texas 78118 Write a review Phone Directions