New Castle is a city in Lawrence County, Pennsylvania, home to about 21,579 people across 8.3 square miles. Its ZIP codes are 16101 and 16102, and parts of 16105 are in New Castle too.
Homes sold for a median of $97 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Mostly New Castle; also Shenango Township (Lawrence County) and Union Township (Lawrence County)
Mostly New Castle; also North Beaver and South New Castle
Mostly Neshannock; part is in New Castle
Each card is that ZIP code’s whole market, including any part outside New Castle. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up New Castle’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Pittsburgh International Airport (PIT)35 miles away |
|---|---|
| Nearest city of 250,000+ | Pittsburgh, PA43 miles away |
| Nearest city of 1 million+ | Philadelphia, PA282 miles away |
Straight-line distances from the center of New Castle; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
New Castle had 21,926 residents in the 2020 census, down 17% since 2000.
It’s the 83rd largest of 2,568 towns in Pennsylvania by population.
Lawrence County grew from 57,042 residents in 1900 to 86,070 in 2020.
Lawrence County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 19°F. About 42 inches of rain and melted snow fall in a typical year, with about 28 inches of snow.
Source: NOAA 1991–2020 climate normals, New Castle 1 N, PA weather station (2 miles away).
24,349 jobs at 1,865 businesses in Lawrence County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
201 doctors and other health care providers list an office in New Castle’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 17 |
|---|---|
| Specialist doctors | 13 |
| Dentists | 14 |
| Nurse practitioners and physician assistants | 25 |
| Mental health providers | 91 |
| Physical and occupational therapists | 26 |
| Optometrists | 6 |
| Chiropractors | 9 |
| Pharmacies | 15 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (12 nearby)
Grocery stores (2 nearby)
Pharmacies (5 nearby)
Libraries (1 nearby)
Theaters and performance venues (1 nearby)
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1802.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Union Area SD, New Castle Area SD, Laurel SD and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Union Memorial El SchNew Castle | Pre-K–5 | 320 | Public | 1.8 mi |
| Harry W Lockley Early Learning CenterNew Castle | K–2 | 736 | Public | 1.1 mi |
| Laurel El SchNew Castle | K–6 | 503 | Public | 4.9 mi |
| Mohawk El SchNew Castle | K–5 | 709 | Public | 5.6 mi |
| Neshannock Memorial El SchNew Castle | K–6 | 688 | Public | 5.2 mi |
| Shenango El SchNew Castle | K–6 | 485 | Public | 2.1 mi |
| Washington Intrmd SchNew Castle | 3–5 | 707 | Public | 1.8 mi |
| Mohawk JHSNew Castle | 6–8 | 329 | Public | 5.7 mi |
| New Castle JHSNew Castle | 6–8 | 689 | Public | 1.0 mi |
| Union Area MSNew Castle | 6–8 | 174 | Public | 2.2 mi |
| Laurel MSNew Castle | 7–8 | 160 | Public | 4.7 mi |
| Neshannock JSHSNew Castle | 7–12 | 545 | Public | 5.2 mi |
| Shenango HSNew Castle | 7–12 | 449 | Public | 2.3 mi |
| Laurel HSNew Castle | 9–12 | 313 | Public | 4.7 mi |
| Lawrence County Career and Technical CenterNew Castle | 9–12 | 418 | Career and Technical | 1.2 mi |
| Mohawk SHSNew Castle | 9–12 | 406 | Public | 5.7 mi |
| New Castle SHSNew Castle | 9–12 | 740 | Public | 1.0 mi |
| Union Area HSNew Castle | 9–12 | 193 | Public | 2.2 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Faith Country Chapel Preschool & KindergartenNew Castle | Pre-K–K | 10 | Christian (no specific denomination) | 4.0 mi |
| New Castle Christian AcademyNew Castle | Pre-K–8 | 123 | Christian (no specific denomination) | 1.9 mi |
| Newcastle Christian AcademyNew Castle | Pre-K–8 | 118 | Christian (no specific denomination) | 1.9 mi |
| Cray Education CenterNew Castle | 4–12 | 39 | Nonsectarian | 3.4 mi |
| Cray Challenges Alternative School (Aedy)New Castle | 7–12 | 21 | Nonsectarian | 3.4 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Neshannock, Shenango Township (Lawrence County), Union Township (Lawrence County), North Beaver, Hickory, Slippery Rock Township (Lawrence County), Scott Township (Lawrence County), South New Castle, Taylor Township (Lawrence County) and Wilmington Township (Lawrence County).
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.