How old are the homes in Bala Cynwyd, PA?

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

72.8% (±9.9 points) of the homes in Bala Cynwyd, PA were built before 1980 (2020–2024 American Community Survey).

24.6% were built before 1940.

11.6% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 72.8% (±9.9 points)
Built before 1940: 24.6%
Built 2010 or later: 11.6%

When the homes in Bala Cynwyd were built

Housing units by year structure built, 2020–2024
Year built	Bala Cynwyd	Montgomery County	Pennsylvania	United States
2020 or later	3.1% (±2.0 points)	1.5%	1.0%	2.0%
2010 to 2019	8.5% (±3.3 points)	6.6%	5.1%	9.4%
2000 to 2009	3.7% (±1.9 points)	8.6%	8.1%	13.6%
1990 to 1999	5.7% (±3.2 points)	10.8%	8.9%	12.4%
1980 to 1989	6.1% (±2.2 points)	11.4%	9.6%	12.9%
1970 to 1979	11.0% (±5.6 points)	12.1%	12.4%	14.2%
1960 to 1969	12.2% (±4.1 points)	11.7%	9.9%	9.9%
1950 to 1959	10.5% (±3.2 points)	15.9%	13.0%	9.5%
1940 to 1949	14.5% (±4.2 points)	5.4%	7.0%	4.4%
1939 or earlier	24.6% (±4.6 points)	16.0%	25.0%	11.7%

In Bala Cynwyd, the share of homes built before 1980 is higher than in Montgomery County (61.1%).

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

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

In Montgomery County, Bala Cynwyd ranks 19 of 43 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 146 of 391.

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 (61.8%) and the share built before 1980 (72.8%).

Homes built before 1980 in places near Bala Cynwyd

Nearest places with a published estimate, compared with Bala Cynwyd
Place	Distance	Homes built before 1980	Compared with this place
Bala Cynwyd	—	72.8% (±9.9 points)	—
Merion Station	1.3 mi	96.7% (±11.9 points)	Higher
Narberth	1.9 mi	93.9% (±10.3 points)	Higher
Wynnewood	2.4 mi	78.0% (±14.9 points)	Not measurably different
Penn Wynne	2.9 mi	97.1% (±11.9 points)	Higher
Millbourne	3.6 mi	93.0% (±22.7 points)	Not measurably different
Ardmore	3.6 mi	85.9% (±7.7 points)	Higher
Haverford College	4.2 mi	100.0% (±71.8 points)	Not measurably different
Bryn Mawr	4.7 mi	85.8% (±12.7 points)	Not measurably different

Nearby places with a measurably higher figure: Merion Station, PA (96.7%), Narberth, PA (93.9%), Penn Wynne, PA (97.1%).

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

Homes built before 1980 across Montgomery County, place by place

Rank	Place	Homes built before 1980
13	Bryn Mawr	85.8% (±12.7 points)
14	Oreland	84.7% (±10.0 points)
15	Stowe	82.5% (±11.6 points)
16	Rosemont	80.3% (±12.8 points)
17	Wynnewood	78.0% (±14.9 points)
18	Elkins Park	74.2% (±9.8 points)
19	Bala Cynwyd	72.8% (±9.9 points)
20	Mont Clare	72.2% (±20.9 points)
21	Eagleville	71.2% (±13.0 points)
22	Pottsgrove	71.1% (±13.6 points)
23 (tie)	Fort Washington	68.5% (±9.7 points)
23 (tie)	McKinley	68.5% (±18.4 points)
25	Trooper	67.9% (±14.2 points)

Showing 13 of 43 places in Montgomery County, ranked from highest to lowest.

Bala Cynwyd is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.

It lies inside Lower Merion Township, whose figures include it.

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 Bala Cynwyd

How old are most homes in Bala Cynwyd?

72.8% of homes in Bala Cynwyd, PA were built before 1980 (2020–2024 American Community Survey).

Do homes in Bala Cynwyd 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 61.8% and 72.8% of homes in Bala Cynwyd were built before then.

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

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 — Bala Cynwyd CDP, 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 Bala Cynwyd CDP, Pennsylvania (place:03895, 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.