How old are the homes in London Grove Township, PA?

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

26.2% (±7.9 points) of the homes in London Grove Township, PA were built before 1980 (2020–2024 American Community Survey).

8.4% were built before 1940.

16.0% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 26.2% (±7.9 points)
Built before 1940: 8.4%
Built 2010 or later: 16.0%

When the homes in London Grove Township were built

Housing units by year structure built, 2020–2024
Year built	London Grove Township	Chester County	Pennsylvania	United States
2020 or later	4.0% (±1.8 points)	2.5%	1.0%	2.0%
2010 to 2019	12.0% (±5.3 points)	8.2%	5.1%	9.4%
2000 to 2009	27.8% (±8.3 points)	15.6%	8.1%	13.6%
1990 to 1999	17.8% (±5.4 points)	13.9%	8.9%	12.4%
1980 to 1989	12.2% (±4.8 points)	14.9%	9.6%	12.9%
1970 to 1979	8.9% (±5.4 points)	13.7%	12.4%	14.2%
1960 to 1969	2.4% (±2.3 points)	8.2%	9.9%	9.9%
1950 to 1959	4.6% (±3.2 points)	7.7%	13.0%	9.5%
1940 to 1949	1.9% (±3.1 points)	2.7%	7.0%	4.4%
1939 or earlier	8.4% (±2.8 points)	12.6%	25.0%	11.7%

In London Grove Township, the share of homes built before 1980 is lower than in Chester County (44.9%).

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

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

In Chester County, London Grove Township ranks 68 of 73 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 2525 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 (17.3%) and the share built before 1980 (26.2%).

Homes built before 1980 in places near London Grove Township

Nearest places with a published estimate, compared with London Grove Township
Place	Distance	Homes built before 1980	Compared with this place
London Grove Township	—	26.2% (±7.9 points)	—
West Grove	1.0 mi	58.8% (±12.5 points)	Higher
Avondale	1.8 mi	69.4% (±16.0 points)	Higher
Penn Township (Chester County)	3.2 mi	18.9% (±7.2 points)	Not measurably different
New Garden Township	3.4 mi	25.7% (±6.8 points)	Not measurably different
West Marlborough Township	4.0 mi	88.1% (±12.1 points)	Higher
Londonderry Township (Chester County)	4.7 mi	40.1% (±13.1 points)	Not measurably different
Franklin Township (Chester County)	4.9 mi	27.6% (±8.7 points)	Not measurably different
New London Township	5.5 mi	15.9% (±6.2 points)	Lower

Nearby places with a measurably lower figure: New London Township, PA (15.9%).

Nearby places with a measurably higher figure: West Grove, PA (58.8%), Avondale, PA (69.4%), West Marlborough Township, PA (88.1%).

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

Homes built before 1980 across Chester County, place by place

Rank	Place	Homes built before 1980
62	Thornbury Township (Chester County)	27.4% (±7.0 points)
63	Charlestown Township	27.3% (±9.6 points)
64	Honey Brook Township	27.0% (±8.2 points)
65	East Bradford Township	26.9% (±5.8 points)
66	Birmingham Township	26.7% (±7.6 points)
67	West Pikeland Township	26.4% (±7.1 points)
68	London Grove Township	26.2% (±7.9 points)
69	New Garden Township	25.7% (±6.8 points)
70	West Vincent Township	19.4% (±7.4 points)
71	Penn Township (Chester County)	18.9% (±7.2 points)
72	New London Township	15.9% (±6.2 points)
73	Upper Uwchlan Township	11.7% (±3.4 points)

Showing 12 of 73 places in Chester 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 London Grove Township

How old are most homes in London Grove Township?

26.2% of homes in London Grove Township, PA were built before 1980 (2020–2024 American Community Survey).

Do homes in London Grove Township 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 17.3% and 26.2% of homes in London Grove Township were built before then.

Does a contractor need lead certification to work on older homes in London Grove Township?

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 — London Grove township, Chester 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 London Grove township, Chester County, Pennsylvania (county subdivision:44480, in state:42 county:029).

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.