Zip code : 61865 Official USPS city name : Potomac Official USPS state code : IL Official state name : Illinois zcta : TRUE Population : 1642.0 Density : 8.2 Primary official county code : 17183 Primary official county name : Vermilion Counterweights : {“17183”: …
Potomac MD Maryland Zip code
Zip code : 20854 Official USPS city name : Potomac Official USPS state code : MD Official state name : Maryland zcta : TRUE Population : 49189.0 Density : 562.4 Primary official county code : 24031 Primary official county name : Montgomery Counterweights : {“24031”: …