Mammoth, PA ZIP Codes
One ZIP code serves Mammoth, Pennsylvania: 15666. Together they are home to 15,980 residents in 7,308 households. That is more than the 373 people counted inside Mammoth Census-designated place, because these ZIP codes reach past its boundary.
Mammoth Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 373 |
| Households | 223 |
| Median household income | $39,219 |
| Median home value | $155,500 |
| Median age | 66.4 |
| Median rent | not published |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 15,980 |
| Households (sum of ZIP codes) | 7,308 |
| Median household income, range across ZIP codes | $68,102 (15666) to $68,102 (15666) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $68,102 |
| Homeowners | 77.1% |
| Households with kids under 18 | 21.2% |
| Moved in the past year | 5.7% |
| Carrier routes in EDDM2GO's route library | 15 routes, 7,127 homes (1 of 1 ZIP codes) |
Every ZIP code in Mammoth
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 15666 | Mount Pleasant | 15,980 | 7,308 | $68,102 | $163,100 | 77.1% | 21.2% | 5.7% | 15 | 7,675 | 4% of its land |
A ZIP code is listed for Mammoth when at least 10% of its land lies inside the Mammoth Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Mammoth. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Mammoth.
Counties
- Westmoreland County — 83 ZIP codes
Price a mailing to Mammoth ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Mammoth, PA?
- 15666. A ZIP code is listed for Mammoth when at least 10% of its land lies inside the Mammoth Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Mammoth.
- What is the population of Mammoth, PA?
- The Census Bureau counts 373 residents inside Mammoth Census-designated place (ACS 2020–2024). The 1 ZIP code that serve Mammoth hold 15,980 residents in all.
- What is the median household income in Mammoth, PA?
- $39,219 inside Mammoth Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $68,102 to $68,102.
- How many carrier routes and mailboxes are in Mammoth, PA?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 15 carrier routes reaching 7,127 residential and 550 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.