Why ZIP codes have 5 numbers — and what they each mean By Barbara Tasch Jun 30, 2015, 9:24 AM PT Add us on ...

MINNEAPOLIS (WCCO) -- They are the five numbers that stand for home. Since 1963, ZIP codes have been a part of just about every piece of mail that travels through our system.

A number is redacted if there are one to four cases in a zip code for privacy, said Nate Wardle, a spokesman for the state Department of Health. The department shares numbers that are five or higher.

ZIP codes were unveiled in 1962, but it was more than 20 years before the U.S. Postal Service announced nearly 100% compliance with the five-digit system.

A number is redacted if there are one to four cases in a zip code for privacy, said Nate Wardle, a spokesman for the state Department of Health. The department shares numbers that are five or higher.

Zip Code 30058 This zip code covers the Lithonia area, in DeKalb County. The area has the highest number of COVID cases in DeKalb County, so far.

Zip code 10302, Elm Park, has the lowest number of cases, with 61 positives overall, the data shows. The map below uses colors to illustrate the number of cases in each zip code.

Rupert noted that the ZIP code wasn’t listed on the Postal Service website of Las Vegas-area ZIP codes, but some digging revealed that the area had been absorbed into 89108 and 89158 had been ...