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U.S. ZIP Code 61771
5-digit United States postal code #61771, Secor, IL
ZIP code 61771 is located in the city (place name) Secor, сounty Woodford in the state of Illinois. The population in ZIP code 61771 is 860 and the population density is 14.4. ZIP code 61771 refers to сounty Woodford having сounty FIPS 17203, the ratio of people from different counties in this ZIP code is as follows: all county weights - 17203: 100%. In the area of the ZIP code 61771 valid time zone America/Chicago.