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U.S. ZIP Code 61340
5-digit United States postal code #61340, Mark, IL
ZIP code 61340 is located in the city (place name) Mark, сounty Putnam in the state of Illinois. The population in ZIP code 61340 is 292 and the population density is 220.5. ZIP code 61340 refers to сounty Putnam having сounty FIPS 17155, the ratio of people from different counties in this ZIP code is as follows: all county weights - 17155: 100%. In the area of the ZIP code 61340 valid time zone America/Chicago.