Residential delivery area · Pennsylvania
ZIP Code 16101: New Castle, PA
ZIP code 16101 uses the postal name New Castle, Pennsylvania and lies entirely in Lawrence County (Census 2020 ZIP-county file). About 31,000 people live there (Census Bureau, ACS 2020-2024), the most populous of New Castle's 3 residential ZIP codes. Median household income is $51,128 (Census Bureau, ACS 2020-2024). By Census place, its land lies in New Castle (8%), Oakwood (4%) and Oakland (1%); 87% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- New Castle · 3 residential ZIPs
- County
- Lawrence County
- Census places
- New Castle (8%); Oakwood (4%) census-designated place; Oakland (1%) census-designated place
- Metro area
- Pittsburgh, PA
- House district
- PA-16 119th Congress
- State
- Pennsylvania
- Time zone
- Eastern
- Land area
- 69.2 sq mi · 444 people per sq mi
Where is ZIP code 16101?
16101 centers on 40.984°, -80.290° and covers 69.2 square miles of land plus 0.5 of water. It borders 9 ZIP codes: 16160, 16105, 16102, 16157, 16117, 16051, 16156, 16116, 16057.
The map draws ZIP code areas only. For the streets inside 16101, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 16101 compare with the rest of New Castle?
| Measure | 16101 | In New Castle | In Lawrence County | In PA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 30,767 | 1st of 3 | 1st of 23 | 99th of 1,833 |
| Median household income | $51k | 3rd of 3 | 18th of 18 | 950th of 1,015 |
| Median home value | $111k | 2nd of 3 | 17th of 18 | 990th of 1,069 |
Its median household income is higher than in 16% of U.S. residential ZIP codes, and it is denser than 71% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 16101?
The 2020 Census counted 31,960 people in 16101; the ACS, which samples households over 2020-2024, estimates 30,767. Between the 2010 and 2020 censuses its population fell 6.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 30,767
- 2020 Census count
- 31,960−6.1% since 2010 (34,042)
- Households
- 13,265
- Median age
- 43.8
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 16101?
Of the 30,767 people the ACS estimates in 16101, 21.3% are under 18 and 22.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (81.8%).
- Under 1821.3%
- 18 to 6456.0%
- 65 and older22.7%
- White, not Hispanic81.8%
- Black, not Hispanic7.4%
- Other or two or more7.4%
- Hispanic or Latino3.2%
- Asian, not Hispanic0.2%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 16101 earn?
Median household income is $51,128 (ACS 2020-2024), the 18th highest of the 18 ranked ZIP codes in Lawrence County. It is not measurably different from 2015-2019 ($51,644 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $51,128
- Income per person
- $30,309
- Below the poverty line
- 19.4%
- Unemployed (of the labor force)
- 7.7%
- Adults 25+ with a bachelor's degree
- 18.9%
- Adjusted gross income per tax return, 2022
- $55,49914,230 returns; wages 71% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 16101?
FHFA's house price index for 16101, built from repeat sales and appraisals of the same homes, rose 67% from 2015 to 2025 and rose 51% from 2020 to 2025, and moved +2.2% in 2025.
- Median home value (owners' estimate)
- $110,600
- Median gross rent
- $725
- Homes owned by their occupants
- 69.4%
- Housing units
- 14,698
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 16101?
773 business establishments had a location in this ZIP code in 2023, 36 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade121
- Other services (except public administration)112
- Health care and social assistance100
- Accommodation and food services82
- Construction71
- Manufacturing51
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 16101?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 16160 | West Pittsburg | 909 | $45k | 5.4 mi |
| 16105 | New Castle | 15,418 | $66k | 5.5 mi |
| 16102 | New Castle | 4,929 | $56k | 6.7 mi |
| 16157 | Wampum | 2,840 | $60k | 7.0 mi |
| 16117 | Ellwood City | 15,786 | $73k | 8.0 mi |
| 16051 | Portersville | 3,119 | $89k | 8.4 mi |
| 16156 | Volant | 3,431 | $69k | 8.5 mi |
| 16116 | Edinburg | 2,727 | $70k | 9.3 mi |
| 16057 | Slippery Rock | 15,718 | $58k | 12.5 mi |
| 16141 | New Galilee | 2,033 | $74k | 9.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.