Residential delivery area · Pennsylvania
ZIP Code 16635: Duncansville, PA
ZIP code 16635 uses the postal name Duncansville, Pennsylvania and lies entirely in Blair County (Census 2020 ZIP-county file). About 12,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $69,760 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Penn Farms (3%), Foot of Ten (1%), Duncansville (under 1%), Sunbrook (under 1%), Cross Keys (under 1%), Brooks Mill (under 1%), Carson Valley (under 1%), Leamersville (under 1%) and Puzzletown (under 1%); 94% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Duncansville · its only residential ZIP
- County
- Blair County
- Census places
- Penn Farms (3%) census-designated place; Foot of Ten (1%) census-designated place; Duncansville (under 1%); Sunbrook (under 1%) census-designated place
- Metro area
- Altoona, PA
- House district
- PA-13 119th Congress
- State
- Pennsylvania
- Time zone
- Eastern
- Land area
- 56.7 sq mi · 212 people per sq mi
Where is ZIP code 16635?
16635 centers on 40.408°, -78.477° and covers 56.7 square miles of land plus 0.1 of water. It borders 10 ZIP codes: 16665, 16637, 15938, 16630, 16602, 15946, 16648, 16641, 16613, 16601.
The map draws ZIP code areas only. For the streets inside 16635, 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 16635 compare with the rest of Blair County?
| Measure | 16635 | In Blair County | In PA |
|---|---|---|---|
| People (ACS 2020-2024) | 12,003 | 5th of 20 | 358th of 1,833 |
| Median household income | $70k | 5th of 14 | 595th of 1,015 |
| Median home value | $192k | 3rd of 14 | 667th of 1,069 |
Its median household income is higher than in 46% of U.S. residential ZIP codes, and it is denser than 63% 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 16635?
The 2020 Census counted 11,661 people in 16635; the ACS, which samples households over 2020-2024, estimates 12,003. Between the 2010 and 2020 censuses its population grew 3.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 12,003
- 2020 Census count
- 11,661+3.0% since 2010 (11,321)
- Households
- 5,077
- Median age
- 46.5
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 16635?
Of the 12,003 people the ACS estimates in 16635, 17.8% are under 18 and 26.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (93.8%).
- Under 1817.8%
- 18 to 6455.9%
- 65 and older26.3%
- White, not Hispanic93.8%
- Other or two or more2.5%
- Asian, not Hispanic2.0%
- Hispanic or Latino1.5%
- Black, 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 16635 earn?
Median household income is $69,760 (ACS 2020-2024), the 5th highest of the 14 ranked ZIP codes in Blair County. It is not measurably different from 2015-2019 ($70,175 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $69,760±$7,367
- Income per person
- $42,177
- Below the poverty line
- 7.2%
- Unemployed (of the labor force)
- 4.3%
- Adults 25+ with a bachelor's degree
- 28.2%
- Adjusted gross income per tax return, 2022
- $85,8505,690 returns; wages 61% 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 16635?
FHFA's house price index for 16635, built from repeat sales and appraisals of the same homes, rose 45% from 2015 to 2025 and rose 29% from 2020 to 2025, and moved −5.1% in 2025.
- Median home value (owners' estimate)
- $192,100
- Median gross rent
- $1,023
- Homes owned by their occupants
- 77.1%
- Housing units
- 5,380
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 16635?
393 business establishments had a location in this ZIP code in 2023, 10 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade63
- Other services (except public administration)56
- Construction52
- Health care and social assistance43
- Accommodation and food services32
- Transportation and warehousing23
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 16635?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 16665 | Newry | 253 | $66k | 2.6 mi |
| 16637 | East Freedom | 2,345 | $56k | 4.5 mi |
| 15938 | Lilly | 2,312 | $71k | 6.3 mi |
| 16630 | Cresson | 4,726 | $58k | 6.6 mi |
| 16602 | Altoona | 26,352 | $55k | 6.8 mi |
| 15946 | Portage | 6,561 | $56k | 7.8 mi |
| 16648 | Hollidaysburg | 14,904 | $82k | 8.0 mi |
| 16641 | Gallitzin | 2,348 | $65k | 8.5 mi |
| 16613 | Ashville | 1,647 | $74k | 9.4 mi |
| 16601 | Altoona | 33,515 | $58k | 11.4 mi |
| 16699 | Cresson | 0 | – | 5.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.