Smith County Texas Zip Codes

Cities in

Below are a list of the cities located in Smith County, TX. There are 22 total unique zip codes in Smith County, Texas. The time zone for Smith County is the Central Daylight Time zone and they follow daylight savings time. The Federal Information Processing System (FIPS) Code for is 48423.

The population in Smith County, TX is currently 237,186. That is an increase of 13.40% vs the population of 209,714 in 2010.

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