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U.S. ZIP Code 74528
5-digit United States postal code #74528, Blanco, OK
ZIP code 74528 is located in the city (place name) Blanco, сounty Pittsburg in the state of Oklahoma. The population in ZIP code 74528 is 174 and the population density is 2.0. ZIP code 74528 refers to сounty Pittsburg having сounty FIPS 40121, the ratio of people from different counties in this ZIP code is as follows: all county weights - 40121: 100%. In the area of the ZIP code 74528 valid time zone America/Chicago.