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U.S. ZIP Code 20629
5-digit United States postal code #20629, Dowell, MD
ZIP code 20629 is located in the city (place name) Dowell, сounty Calvert in the state of Maryland. The population in ZIP code 20629 is 535 and the population density is 479.0. ZIP code 20629 refers to сounty Calvert having сounty FIPS 24009, the ratio of people from different counties in this ZIP code is as follows: all county weights - 24009: 100%. In the area of the ZIP code 20629 valid time zone America/New_York.