The Effects of Ventilation, Humidity, and Temperature ... - PMC
: Located in Springs, PA , this ZIP code has a population density of approximately 83 people per square mile. Potential Alternate Identifiers 155622 zip
The number does not correspond to a valid United States ZIP code. ZIP codes in the United States are five-digit numerical codes, and none currently begin with "1556". While some nearby regions in Pennsylvania use similar-looking ZIP codes, such as 15522 (Bedford) or 15622 (Champion), there is no record of a 155622 ZIP code in the official USPS system. The Effects of Ventilation, Humidity, and Temperature
The number 155622 appears more frequently in academic or technical contexts rather than as a postal code: The Effects of Ventilation