The Sewickley Bridge crosses the Ohio River from Sewickley to Moon Township. The population was 3,907 at the 2020 census. It is a residential suburb of the Pittsburgh metropolitan area. According to the USPS, you should NOT send mail to that ZIP Code using the 'not acceptable' name when mailing.Sewickley is a borough in Allegheny County, Pennsylvania, United States, 12 miles (19 km) west northwest of Pittsburgh along the Ohio River. ❓What does N (Not Acceptable) mean? A 'not acceptable' name is, in many cases, a nickname that residents give that location. In some cases a ZIP Code may have several 'acceptable' names which is used to group towns under one ZIP Code. Often times alternative names are large neighborhoods or sections of the city/town. ❓What does A (Acceptable) mean? This name can be used for mailing purposes. In most cases, this is what people who live in that area call the city as well. Each ZIP Code has one - and only one - 'default' name. ❓What does D (Default) mean? This is the 'preferred' name - by the USPS - for a city.

According to the USPS, you should NOT send mail to that ZIP Code using the 'not acceptable' name when mailing. N - Not Acceptable - A 'not acceptable' name is, in many cases, a nickname that residents give that location.

In most cases, this is what people who live in that area call the city as well.Ī - Acceptable - This name can be used for mailing purposes. However, it will ALWAYS have exactly 1 'default' name.ĭ - Default - This is the 'preferred' name - by the USPS - for a city. City Type ? In many cases, a ZIP Code can have multiple 'names', meaning cities, towns, or subdivisions, in its boundaries.

Moon township zip code