How old are the homes in Duncansville, PA?

Name: Age of homes in Duncansville, PA, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

79.4% (±12.3 points) of the homes in Duncansville, PA were built before 1980 (2020–2024 American Community Survey).

32.6% were built before 1940.

0.7% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 79.4% (±12.3 points)
Built before 1940: 32.6%
Built 2010 or later: 0.7%

When the homes in Duncansville were built

Housing units by year structure built, 2020–2024
Year built	Duncansville	Blair County	Pennsylvania	United States
2020 or later	0.0% (±5.6 points)	0.5%	1.0%	2.0%
2010 to 2019	0.7% (±0.7 points)	2.8%	5.1%	9.4%
2000 to 2009	3.5% (±2.3 points)	6.4%	8.1%	13.6%
1990 to 1999	3.7% (±3.1 points)	7.1%	8.9%	12.4%
1980 to 1989	12.7% (±4.0 points)	7.9%	9.6%	12.9%
1970 to 1979	20.0% (±5.9 points)	13.8%	12.4%	14.2%
1960 to 1969	8.0% (±4.8 points)	7.9%	9.9%	9.9%
1950 to 1959	14.2% (±5.4 points)	13.4%	13.0%	9.5%
1940 to 1949	4.6% (±2.4 points)	9.4%	7.0%	4.4%
1939 or earlier	32.6% (±7.7 points)	30.8%	25.0%	11.7%

In Duncansville, the share of homes built before 1980 is not measurably different from Blair County (75.3%).

It is not measurably different from Pennsylvania (67.3%).

It is higher than the national figure (49.7%).

In Blair County, Duncansville ranks 8 of 24 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 725 of 2,558.

Rankings use the estimates alone; where margins of error overlap, neighboring ranks may not truly differ.

Why the age of a home matters: lead-based paint

Federal law treats housing built before 1978 as likely to contain lead-based paint.

Before a lease or sale of most pre-1978 housing, the landlord or seller must disclose any known lead-based paint and hazards and give the tenant or buyer the EPA pamphlet (42 U.S.C. § 4852d; 40 CFR part 745, subpart F; 24 CFR part 35, subpart A).

A contractor paid to renovate, repair or paint a pre-1978 home must be a certified firm, use a certified renovator and follow lead-safe work practices under the Renovation, Repair and Painting Rule (40 CFR part 745, subpart E) whenever the job disturbs more than 6 square feet of painted surface in a room or more than 20 square feet outside; window replacement and demolition always count (40 CFR 745.83).

Certification comes from EPA, or from the state where EPA has authorized the state to run the program.

The Census Bureau groups construction by decade, so the share built before 1978 lies between the share built before 1970 (59.4%) and the share built before 1980 (79.4%).

Homes built before 1980 in places near Duncansville

Nearest places with a published estimate, compared with Duncansville
Place	Distance	Homes built before 1980	Compared with this place
Duncansville	—	79.4% (±12.3 points)	—
Penn Farms	1.1 mi	19.7% (±8.2 points)	Lower
Hollidaysburg	2.0 mi	75.5% (±12.2 points)	Not measurably different
Blair Township	2.2 mi	51.2% (±10.5 points)	Lower
Newry	2.3 mi	86.6% (±28.2 points)	Not measurably different
Allegheny Township (Blair County)	3.0 mi	51.8% (±7.9 points)	Lower
Lakemont	3.3 mi	70.6% (±17.7 points)	Not measurably different
Loop	3.6 mi	53.0% (±16.1 points)	Lower
Freedom Township (Blair County)	4.8 mi	70.7% (±18.7 points)	Not measurably different

Nearby places with a measurably lower figure: Penn Farms, PA (19.7%), Blair Township, PA (51.2%), Allegheny Township (Blair County), PA (51.8%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes built before 1980 across Blair County, place by place

Rank	Place	Homes built before 1980
2	Altoona	90.8% (±4.1 points)
3	Bellwood	90.0% (±15.8 points)
4	Tyrone	89.4% (±10.9 points)
5	Newry	86.6% (±28.2 points)
6	Williamsburg	82.7% (±12.3 points)
7	Martinsburg	81.4% (±13.8 points)
8	Duncansville	79.4% (±12.3 points)
9	Hollidaysburg	75.5% (±12.2 points)
10	Woodbury Township (Blair County)	72.9% (±14.0 points)
11	Snyder Township (Blair County)	71.2% (±14.0 points)
12	Freedom Township (Blair County)	70.7% (±18.7 points)
13	Antis Township	66.7% (±11.3 points)
14	Tyrone Township (Blair County)	62.6% (±9.9 points)

Showing 13 of 24 places in Blair County, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Duncansville

How old are most homes in Duncansville?

79.4% of homes in Duncansville, PA were built before 1980 (2020–2024 American Community Survey).

Do homes in Duncansville need a lead paint disclosure?

A home built before 1978 does, before it is rented or sold, unless an exemption applies (42 U.S.C. § 4852d); between 59.4% and 79.4% of homes in Duncansville were built before then.

Does a contractor need lead certification to work on older homes in Duncansville?

Yes, when the job disturbs more than 6 square feet of paint in a room or 20 square feet outside, or replaces a window: the firm must be certified and a certified renovator must direct the work under the Renovation, Repair and Painting Rule (40 CFR part 745, subpart E).

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Duncansville borough, Pennsylvania

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Duncansville borough, Pennsylvania (place:20248, in state:42).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0017PE, DP04_0017PM, DP04_0018PE, DP04_0018PM, DP04_0019PE, DP04_0019PM, DP04_0020PE, DP04_0020PM, DP04_0021PE, DP04_0021PM, DP04_0022PE, DP04_0022PM, DP04_0023PE, DP04_0023PM, DP04_0024PE, DP04_0024PM, DP04_0025PE, DP04_0025PM, DP04_0026PE, DP04_0026PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.