New Castle, PA ZIP Codes
3 ZIP codes serve New Castle, Pennsylvania: 16101, 16105 and 16102. Together they are home to 51,114 residents in 22,212 households. That is more than the 21,579 people counted inside New Castle city limits, because these ZIP codes reach past its boundary. Median household income ranges from $51,128 in 16101 to $65,855 in 16105.
New Castle city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 21,579 |
| Households | 9,406 |
| Median household income | $42,219 |
| Median home value | $77,400 |
| Median age | 39.5 |
| Median rent | $741 |
All 3 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 51,114 |
| Households (sum of ZIP codes) | 22,212 |
| Median household income, range across ZIP codes | $51,128 (16101) to $65,855 (16105) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $56,160 |
| Homeowners | 72.6% |
| Households with kids under 18 | 24.4% |
| Moved in the past year | 10.9% |
| Carrier routes in EDDM2GO's route library | 44 routes, 22,940 homes (3 of 3 ZIP codes) |
Top facts
- Highest median household income in New Castle: 16105 ($65,855)
- Most residents: 16101 (30,767 people)
- Highest homeownership: 16102 (80.1% own their home)
- Most households with kids: 16102 (27.5% of households)
- Most new movers: 16101 (11.8% moved in last year)
- Youngest median age: 16101 (43.8 years)
- Highest median home value: 16105 ($183,500)
Every ZIP code in New Castle
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 16101 | New Castle | 30,767 | 13,265 | $51,128 | $110,600 | 69.4% | 25.4% | 11.8% | 26 | 15,004 | 8% of its land; mailing city |
| 16105 | New Castle | 15,418 | 6,907 | $65,855 | $183,500 | 76.4% | 21.7% | 11.4% | 13 | 7,169 | 4% of its land; mailing city |
| 16102 | New Castle | 4,929 | 2,040 | $56,053 | $104,900 | 80.1% | 27.5% | 3.8% | 5 | 2,385 | 7% of its land; mailing city |
A ZIP code is listed for New Castle when at least 10% of its land lies inside New Castle city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is New Castle. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside New Castle.
Counties
- Lawrence County — 21 ZIP codes
Price a mailing to New Castle ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in New Castle, PA?
- 16101, 16105 and 16102. A ZIP code is listed for New Castle when at least 10% of its land lies inside New Castle city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is New Castle.
- What is the population of New Castle, PA?
- The Census Bureau counts 21,579 residents inside New Castle city limits (ACS 2020–2024). The 3 ZIP codes that serve New Castle hold 51,114 residents in all.
- What is the median household income in New Castle, PA?
- $42,219 inside New Castle city limits, per the Census Bureau. Across its ZIP codes the medians run from $51,128 to $65,855.
- Which New Castle ZIP code has the highest median household income?
- 16105, at $65,855, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in New Castle, PA?
- For the 3 of 3 ZIP codes in EDDM2GO's stored route library: 44 carrier routes reaching 22,940 residential and 1,618 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.