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U.S. ZIP Code 77377
5-digit United States postal code #77377, Tomball, TX
ZIP code 77377 is located in the city (place name) Tomball, сounty Harris in the state of Texas. The population in ZIP code 77377 is 28708 and the population density is 283.7. ZIP code 77377 refers to сounty Harris having сounty FIPS 48201, the ratio of people from different counties in this ZIP code is as follows: all county weights - 48201: 100%. In the area of the ZIP code 77377 valid time zone America/Chicago.