How old are the homes in Dennis Township, NJ?

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

60.0% (±9.2 points) of the homes in Dennis Township, NJ were built before 1980 (2020–2024 American Community Survey).

20.8% were built before 1940.

3.9% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 60.0% (±9.2 points)
Built before 1940: 20.8%
Built 2010 or later: 3.9%

When the homes in Dennis Township were built

Housing units by year structure built, 2020–2024
Year built	Dennis Township	Cape May County	New Jersey	United States
2020 or later	2.1% (±1.9 points)	1.8%	1.1%	2.0%
2010 to 2019	1.8% (±1.7 points)	7.0%	6.2%	9.4%
2000 to 2009	3.9% (±2.2 points)	15.7%	9.2%	13.6%
1990 to 1999	13.4% (±4.2 points)	9.6%	8.9%	12.4%
1980 to 1989	18.6% (±4.9 points)	16.9%	11.8%	12.9%
1970 to 1979	24.4% (±6.2 points)	14.2%	12.3%	14.2%
1960 to 1969	7.3% (±3.4 points)	9.2%	12.8%	9.9%
1950 to 1959	7.2% (±3.2 points)	9.2%	13.8%	9.5%
1940 to 1949	0.3% (±0.4 points)	3.7%	6.5%	4.4%
1939 or earlier	20.8% (±4.9 points)	12.6%	17.4%	11.7%

In Dennis Township, the share of homes built before 1980 is higher than in Cape May County (48.9%).

It is not measurably different from New Jersey (62.8%).

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

In Cape May County, Dennis Township ranks 5 of 16 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 363 of 564.

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 (35.6%) and the share built before 1980 (60.0%).

Homes built before 1980 in places near Dennis Township

Nearest places with a published estimate, compared with Dennis Township
Place	Distance	Homes built before 1980	Compared with this place
Dennis Township	—	60.0% (±9.2 points)	—
Woodbine Borough	1.6 mi	62.0% (±12.2 points)	Not measurably different
Seaville	5.5 mi	20.8% (±7.4 points)	Lower
Upper Township	6.1 mi	45.5% (±6.6 points)	Lower
Sea Isle City	7.3 mi	22.5% (±3.4 points)	Lower
Palermo	7.3 mi	43.7% (±11.3 points)	Lower
Middle Township	7.9 mi	42.3% (±5.9 points)	Lower
Maurice River Township	8.5 mi	65.4% (±15.4 points)	Not measurably different
Cape May Court House	8.8 mi	47.8% (±14.2 points)	Not measurably different

Nearby places with a measurably lower figure: Seaville, NJ (20.8%), Upper Township, NJ (45.5%), Sea Isle City, NJ (22.5%).

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

Homes built before 1980 across Cape May County, place by place

Rank	Place	Homes built before 1980
1	West Wildwood Borough	69.5% (±11.5 points)
2	Cape May	68.7% (±9.9 points)
3	Woodbine Borough	62.0% (±12.2 points)
4	North Wildwood	60.5% (±7.9 points)
5 (tie)	Dennis Township	60.0% (±9.2 points)
5 (tie)	Wildwood Crest Borough	60.0% (±8.0 points)
7	Lower Township	58.6% (±4.7 points)
8	Cape May Point Borough	55.5% (±11.0 points)
9	West Cape May Borough	55.2% (±9.1 points)
10	Wildwood	52.8% (±6.5 points)
11	Stone Harbor Borough	52.2% (±5.3 points)

Showing 11 of 16 places in Cape May County, ranked from highest to lowest.

The figures for Dennis Township include the places inside it that have pages of their own: South Dennis.

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 Dennis Township

How old are most homes in Dennis Township?

60.0% of homes in Dennis Township, NJ were built before 1980 (2020–2024 American Community Survey).

Do homes in Dennis 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 35.6% and 60.0% of homes in Dennis Township were built before then.

Does a contractor need lead certification to work on older homes in Dennis 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 — Dennis township, Cape May County, New Jersey

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 Dennis township, Cape May County, New Jersey (county subdivision:17560, in state:34 county:009).

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.