How old are the homes in Washington Township (Armstrong County), PA?

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

47.6% (±10.1 points) of the homes in Washington Township (Armstrong County), PA were built before 1980 (2020–2024 American Community Survey).

11.7% were built before 1940.

4.3% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 47.6% (±10.1 points)
Built before 1940: 11.7%
Built 2010 or later: 4.3%

When the homes in Washington Township (Armstrong County) were built

Housing units by year structure built, 2020–2024
Year built	Washington Township (Armstrong County)	Armstrong County	Pennsylvania	United States
2020 or later	0.0% (±6.8 points)	0.4%	1.0%	2.0%
2010 to 2019	4.3% (±2.9 points)	3.3%	5.1%	9.4%
2000 to 2009	13.5% (±3.8 points)	5.8%	8.1%	13.6%
1990 to 1999	11.3% (±4.8 points)	8.8%	8.9%	12.4%
1980 to 1989	23.3% (±7.6 points)	8.6%	9.6%	12.9%
1970 to 1979	18.3% (±7.1 points)	14.2%	12.4%	14.2%
1960 to 1969	7.6% (±3.9 points)	8.2%	9.9%	9.9%
1950 to 1959	5.4% (±2.9 points)	12.4%	13.0%	9.5%
1940 to 1949	4.6% (±2.6 points)	8.6%	7.0%	4.4%
1939 or earlier	11.7% (±4.7 points)	29.6%	25.0%	11.7%

In Washington Township (Armstrong County), the share of homes built before 1980 is lower than in Armstrong County (73.0%).

It is also lower than in Pennsylvania (67.3%).

It is not measurably different from the national figure (49.7%).

In Armstrong County, Washington Township (Armstrong County) ranks 45 of 45 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 2130 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 (29.3%) and the share built before 1980 (47.6%).

Homes built before 1980 in places near Washington Township (Armstrong County)

Nearest places with a published estimate, compared with Washington Township (Armstrong County)
Place	Distance	Homes built before 1980	Compared with this place
Washington Township (Armstrong County)	—	47.6% (±10.1 points)	—
East Franklin Township	4.3 mi	52.1% (±12.6 points)	Not measurably different
Madison Township (Armstrong County)	4.8 mi	70.5% (±11.1 points)	Higher
Brady Township (Clarion County)	4.9 mi	68.6% (±30.0 points)	Not measurably different
Sugarcreek Township	5.3 mi	57.1% (±10.1 points)	Not measurably different
Pine Township (Armstrong County)	5.5 mi	79.8% (±15.7 points)	Higher
East Brady	5.6 mi	75.3% (±11.8 points)	Higher
Madison Township (Clarion County)	5.7 mi	76.9% (±13.7 points)	Higher
West Hills	5.8 mi	57.8% (±23.2 points)	Not measurably different

Nearby places with a measurably higher figure: Madison Township (Armstrong County), PA (70.5%), Pine Township (Armstrong County), PA (79.8%), East Brady, PA (75.3%).

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

Homes built before 1980 across Armstrong County, place by place

Rank	Place	Homes built before 1980
39 (tie)	Atwood	54.6% (±40.3 points)
39 (tie)	Perry Township (Armstrong County)	54.6% (±12.5 points)
41	Wayne Township (Armstrong County)	53.8% (±10.7 points)
42	Burrell Township (Armstrong County)	52.6% (±14.0 points)
43	East Franklin Township	52.1% (±12.6 points)
44	West Franklin Township	51.3% (±8.2 points)
45	Washington Township (Armstrong County)	47.6% (±10.1 points)

Showing 7 of 45 places in Armstrong 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 Washington Township (Armstrong County)

How old are most homes in Washington Township (Armstrong County)?

47.6% of homes in Washington Township (Armstrong County), PA were built before 1980 (2020–2024 American Community Survey).

Do homes in Washington Township (Armstrong County) 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 29.3% and 47.6% of homes in Washington Township (Armstrong County) were built before then.

Does a contractor need lead certification to work on older homes in Washington Township (Armstrong County)?

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 — Washington township, Armstrong County, 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 Washington township, Armstrong County, Pennsylvania (county subdivision:81176, in state:42 county:005).

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.