Liberty is a city in the U.S. state of Texas, within Liberty County. The population was 8,279 at the 2020 census. It serves as the seat of Lib…Liberty is a city in the U.S. state of Texas, within Liberty County. The population was 8,279 at the 2020 census. It serves as the seat of Liberty County. Liberty is the third oldest city in the state—established in 1831 on the banks of the Trinity River. The city also has a twin of the Liberty Bell from Philadelphia, Pennsylvania. Its area code is 936 and its ZIP code is 77575.
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