6/24/2023 0 Comments Look up zip code![]() Additionally, ZIP codes facilitated the growth of direct mail marketing and made it easier for businesses to target specific geographic areas for advertising and customer outreach. It enabled the USPS to handle large mail volumes more effectively and efficiently. The ZIP code system revolutionized mail processing and became an integral part of the postal infrastructure in the United States. The extra digits provided more specific location information, allowing for finer mail sorting and delivery granularity. In 1983, the ZIP+4 codes were introduced, adding four digits to the original five-digit ZIP code. Over time, as mail volume increased and the need for more precise sorting grew, the USPS introduced an extended format known as ZIP+4 codes. This basic five-digit ZIP code format allowed for more efficient sorting and routing of mail. The first digit represented a broad region or group of states, while the following two digits narrowed down the area to a specific city or town. The initial ZIP code format consisted of a five-digit number. The purpose was to create a systematic way to organize and process mail by assigning a unique code to each geographic area within the United States. The ZIP code system aimed to streamline mail sorting, improve delivery accuracy, and enhance overall postal operations. In 1963, the USPS introduced the concept of ZIP codes, which stands for Zone Improvement Plan. Before the introduction of ZIP codes, mail sorting was labor-intensive and time-consuming, causing delays and inefficiencies in mail delivery. The history of ZIP codes in the United States dates back to the early 1960s when the United States Postal Service (USPS) recognized the need for a more efficient mail routing system. You can conveniently locate them nearby on the map provided above. ![]() In some cases, ZIP codes are also referred to as US postal codes by various shipping companies. These codes are crucial in optimizing the United States Postal Service (USPS) mail routing. ZIP, which stands for Zone Improvement Plan, refers to the unique postal codes used within the United States. *Please scroll down to use the free zip code lookup toolĪre you looking to find a zip code? Utilize our efficient tool by entering a city and state below. I extracted the abbreviated version and might have not assigned the 'blocks' correctly.ĭepending upon the number of ZIP codes to be looked up and how critical the 'State' information is further checking may be advisable.Zip Code Lookup Zip Code Lookup Tool Available Here:.For example, there is no 530 but the above approach would nevertheless return NY. Not all ZIP codes in the range 501 to 99950 (both inclusive) are valid and the above approach may assign a 'State' to an invalid code.Each 'block' (even if only a single ZIP code) for each 'State' has to be a separate entry since it is the lower limit of each 'block' that is being used to represent each entire 'block'. There are more entries than 'States' because, although ZIP codes are mostly assigned in blocks, there are inevitably exceptions, for example NY is mostly 10001 to 14925 but also 501 and 544 (Holtsville) and 6390 (Fishers Island). Since the list is sorted ascending a search for 901 will return PR (an exact match) but so will 1000. range_lookup is not included so the default applies and approximate matches are found as well as exact ones. Normally not at all a good idea, the fourth parameter for VLOOKUP i.e. Based on the first of the links kindly provided by Bartrup-Cook I think you may not need a table_array of over 42,522 entries (83 may be sufficient) when applying VLOOKUP's inexact matching: Min StateĪssuming the above 2-column array is named ZipState and of workbook scope in the same workbook as the codes you wish to look up and the codes are in a column starting in F1, this formula may serve: =VLOOKUP(F1,ZipState,2)Ĭopied down to suit.
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