| City: | Mammoth, Pennsylvania |
| County: | Westmoreland County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 9:12:22 PM |
| Population: | No Population Data |
| Area Codes: | 724 / 878 |
| Classification: | PO Box |
| Coordinates: | 40.2008, -79.4636 |
| Quick Link: |
Route 982 runs through the area, connecting the resort to surrounding communities. There's no street delivery here. Anyone with property in Mammoth gets their mail at the post office, whether they're here year-round or just for ski season. That arrangement works for second-home owners who need a permanent address for packages and bills even when they're not in town.
The six businesses operating under this ZIP likely include ski services, rental operations, or seasonal retail. Census data doesn't capture this community separately, suggesting the population numbers roll into neighboring ZIP 15666. That's common for resort areas where the mailing address serves a specific facility rather than a residential population.
Route 982 is the sole street record, indicating a resort facility rather than a developed street network.
ZIP Code 15664 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 31 people with an annual payroll of $2,028,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 40Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 3Source: CBP |
| 1st Quarter Payroll: | $509,000Source: CBP |
| Annual Payroll: | $2,028,000Source: CBP |
| # of Employees: | 31Source: CBP |
ZIP Code 15664 is located in Westmoreland County, Pennsylvania, within the Pittsburgh, PA Metropolitan Statistical Area (CBSA 38300) and Pennsylvania's 14th Congressional District. This Metro area has a population of 2,356,285 people, about 0.00% of whom live in ZIP Code 15664. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Pittsburgh, PASource: Census |
| CBSA Number: | 38300Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 2,356,285Source: Census |
| MSA: | Pittsburgh, PA MSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 14Source: USPS |
| Congressional Land Area: | 209.29 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4246800Source: Census |
| Place Name: | Mammoth CDP; PennsylvaniaSource: Census |
We could not locate which school district 15664 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.