The ZIP Code 97003 took effect on 2014-07-01, when the ZIP Code 97006 was split [2]. ZIP Codes are not geographical entities and don't correspond to geographic

The ZIP Code 97003 took effect on 2014-07-01, when the ZIP Code 97006 was split [2]. ZIP Codes are not geographical entities and don't correspond to geographical extent; rather, they are a hybrid between a discrete number of finite delivery-points and an abstract way of capturing a postal delivery route. They are often abused as geographical entities, which the Census Bureau has tried to rectify with ZCTAs [1], but it's unclear whether most informal use of ZIP Codes is haphazard, or actually conforms to ZCTAs. However, ZIP Codes directly map to one preferred place name designated by the USPS, and zero or more acceptable alternative place names. These are usually inspired by, but don't necessarily correspond to municipalities and political units that the lots in question belong under. For both 97003 and 97006, the USPS recommended place name is "BEAVERTON", and other acceptable names are "ALOHA" and "HILLSBORO". Beaverton's city limits are complicated [3][4]. The city has a map of annexations as well [5]. Cedar Hill was once supposed to be annexed. A court case about the proposed annexation of the Nike HQ resulted in these plans being put on hold [6]. [1] https://www.census.gov/geo/reference/zctas.html https://www.census.gov/geo/reference/zctas.html [2] https://about.usps.com/news/state-releases/or/2014/or_2014_0519.htm https://about.usps.com/news/state-releases/or/2014/or_2014_0... [3] https://www.beavertonoregon.gov/DocumentCenter/View/9005/City-Limit-8x11?bidId= https://www.beavertonoregon.gov/DocumentCenter/View/9005/Cit... [4] https://www.beavertonoregon.gov/DocumentCenter/View/5554/Beaverton-Area-Zip-Codes?bidId= https://www.beavertonoregon.gov/DocumentCenter/View/5554/Bea... [5] https://www.beavertonoregon.gov/DocumentCenter/View/843/Annexation-History-36x48?bidId= https://www.beavertonoregon.gov/DocumentCenter/View/843/Anne... [6] https://www.oregonlive.com/oregonianextra/2006/06/appellate_court_rejects_beaver.html https://www.oregonlive.com/oregonianextra/2006/06/appellate_...