How old are the homes in Jefferson Hills, PA?

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

49.8% (±6.7 points) of the homes in Jefferson Hills, PA were built before 1980 (2020–2024 American Community Survey).

6.8% were built before 1940.

15.3% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 49.8% (±6.7 points)
Built before 1940: 6.8%
Built 2010 or later: 15.3%

When the homes in Jefferson Hills were built

Housing units by year structure built, 2020–2024
Year built	Jefferson Hills	Allegheny County	Pennsylvania	United States
2020 or later	2.1% (±1.5 points)	0.8%	1.0%	2.0%
2010 to 2019	13.2% (±2.8 points)	4.8%	5.1%	9.4%
2000 to 2009	10.3% (±3.4 points)	4.9%	8.1%	13.6%
1990 to 1999	10.4% (±3.9 points)	5.5%	8.9%	12.4%
1980 to 1989	14.2% (±3.7 points)	6.8%	9.6%	12.9%
1970 to 1979	8.6% (±2.1 points)	10.6%	12.4%	14.2%
1960 to 1969	7.9% (±3.1 points)	12.0%	9.9%	9.9%
1950 to 1959	23.0% (±4.7 points)	17.7%	13.0%	9.5%
1940 to 1949	3.5% (±1.4 points)	8.6%	7.0%	4.4%
1939 or earlier	6.8% (±2.5 points)	28.1%	25.0%	11.7%

In Jefferson Hills, the share of homes built before 1980 is lower than in Allegheny County (77.0%).

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

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

In Allegheny County, Jefferson Hills ranks 116 of 128 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 2054 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 (41.2%) and the share built before 1980 (49.8%).

Homes built before 1980 in places near Jefferson Hills

Nearest places with a published estimate, compared with Jefferson Hills
Place	Distance	Homes built before 1980	Compared with this place
Jefferson Hills	—	49.8% (±6.7 points)	—
Pleasant Hills	2.4 mi	90.1% (±10.7 points)	Higher
South Park Township	2.7 mi	66.8% (±6.8 points)	Higher
Clairton	2.8 mi	90.9% (±9.1 points)	Higher
West Elizabeth	3.1 mi	80.2% (±17.9 points)	Higher
Elizabeth	3.4 mi	95.8% (±12.4 points)	Higher
Glassport	3.6 mi	88.5% (±11.6 points)	Higher
Gastonville	4.1 mi	65.1% (±15.6 points)	Not measurably different
Union Township (Washington County)	4.3 mi	68.0% (±12.2 points)	Higher

Nearby places with a measurably higher figure: Pleasant Hills, PA (90.1%), South Park Township, PA (66.8%), Clairton, PA (90.9%).

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

Homes built before 1980 across Allegheny County, place by place

Rank	Place	Homes built before 1980
110	Plum	62.2% (±4.7 points)
111	Kennedy Township	61.5% (±8.8 points)
112	West Deer Township	59.0% (±9.0 points)
113	Moon Township	57.2% (±6.0 points)
114	Indiana Township	53.2% (±7.9 points)
115	Hampton Township	51.9% (±6.5 points)
116	Jefferson Hills	49.8% (±6.7 points)
117	Sewickley Hills	46.6% (±12.7 points)
118	Richland Township (Allegheny County)	46.5% (±9.1 points)
119	Findlay Township	45.3% (±10.4 points)
120	Robinson Township (Allegheny County)	41.9% (±5.7 points)
121	South Fayette Township	38.0% (±5.6 points)
122	Aleppo Township (Allegheny County)	36.2% (±6.6 points)

Showing 13 of 128 places in Allegheny 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 Jefferson Hills

How old are most homes in Jefferson Hills?

49.8% of homes in Jefferson Hills, PA were built before 1980 (2020–2024 American Community Survey).

Do homes in Jefferson Hills 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 41.2% and 49.8% of homes in Jefferson Hills were built before then.

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

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 — Jefferson Hills 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 Jefferson Hills borough, Pennsylvania (place:37955, 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.