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U.S. ZIP Code 73620
5-digit United States postal code #73620, Arapaho, OK
ZIP code 73620 is located in the city (place name) Arapaho, сounty Custer in the state of Oklahoma. The population in ZIP code 73620 is 1194 and the population density is 3.7. ZIP code 73620 refers to сounty Custer having сounty FIPS 40039, the ratio of people from different counties in this ZIP code is as follows: all county weights - 40039: 100%. In the area of the ZIP code 73620 valid time zone America/Chicago.