Residential delivery area · Pennsylvania
ZIP Code 16105: New Castle, PA
ZIP code 16105 uses the postal name New Castle, Pennsylvania and lies entirely in Lawrence County (Census 2020 ZIP-county file). About 15,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of New Castle's 3 residential ZIP codes. Median household income is $65,855 (Census Bureau, ACS 2020-2024). By Census place, 3% of its land lies in New Castle Northwest (a census-designated place), and 4% in smaller places; 92% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- New Castle · 3 residential ZIPs
- County
- Lawrence County
- Census places
- New Castle Northwest census-designated place
- Metro area
- Pittsburgh, PA
- House district
- PA-16 119th Congress
- State
- Pennsylvania
- Time zone
- Eastern
- Land area
- 25.6 sq mi · 603 people per sq mi
Where is ZIP code 16105?
16105 centers on 41.054°, -80.339° and covers 25.6 square miles of land plus 0.3 of water. It borders 4 ZIP codes: 16101, 16142, 16116, 16156.
The map draws ZIP code areas only. For the streets inside 16105, 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 16105 compare with the rest of New Castle?
| Measure | 16105 | In New Castle | In Lawrence County | In PA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 15,418 | 2nd of 3 | 4th of 23 | 283rd of 1,833 |
| Median household income | $66k | 1st of 3 | 13th of 18 | 686th of 1,015 |
| Median home value | $184k | 1st of 3 | 8th of 18 | 700th of 1,069 |
Its median household income is higher than in 40% of U.S. residential ZIP codes, and it is denser than 74% 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 16105?
The 2020 Census counted 15,420 people in 16105; the ACS, which samples households over 2020-2024, estimates 15,418. Between the 2010 and 2020 censuses its population fell 0.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 15,418
- 2020 Census count
- 15,420−0.2% since 2010 (15,448)
- Households
- 6,907
- Median age
- 47.0
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 16105?
Of the 15,418 people the ACS estimates in 16105, 17.8% are under 18 and 26.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (92.2%).
- Under 1817.8%
- 18 to 6455.8%
- 65 and older26.5%
- White, not Hispanic92.2%
- Hispanic or Latino2.5%
- Black, not Hispanic2.5%
- Other or two or more2.3%
- Asian, not Hispanic0.5%
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 16105 earn?
Median household income is $65,855 (ACS 2020-2024), the 13th highest of the 18 ranked ZIP codes in Lawrence County. It fell from $78,434 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $65,855±$6,604
- Income per person
- $42,999
- Below the poverty line
- 6.8%
- Unemployed (of the labor force)
- 4.1%
- Adults 25+ with a bachelor's degree
- 33.8%
- Adjusted gross income per tax return, 2022
- $81,0217,860 returns; wages 62% 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 16105?
FHFA's house price index for 16105, built from repeat sales and appraisals of the same homes, rose 73% from 2015 to 2025 and rose 49% from 2020 to 2025, and moved +7.1% in 2025.
- Median home value (owners' estimate)
- $183,500
- Median gross rent
- $1,044
- Homes owned by their occupants
- 76.4%
- Housing units
- 7,457
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 16105?
425 business establishments had a location in this ZIP code in 2023, 15 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).
- Health care and social assistance120
- Other services (except public administration)54
- Retail trade47
- Finance and insurance37
- Accommodation and food services31
- Construction30
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 16105?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 16101 | New Castle | 30,767 | $51k | 5.5 mi |
| 16142 | New Wilmington | 5,522 | $84k | 5.6 mi |
| 16116 | Edinburg | 2,727 | $70k | 5.8 mi |
| 16156 | Volant | 3,431 | $69k | 6.6 mi |
| 16172 | New Wilmington | 983 | – | 4.4 mi (near) |
| 16143 | Pulaski | 2,100 | $85k | 7.0 mi (near) |
| 16102 | New Castle | 4,929 | $56k | 7.5 mi (near) |
| 16160 | West Pittsburg | 909 | $45k | 8.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.