How old are the homes in Barnum Island, NY?

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

64.5% (±16.1 points) of the homes in Barnum Island, NY were built before 1980 (2020–2024 American Community Survey).

3.7% were built before 1940.

8.3% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 64.5% (±16.1 points)
Built before 1940: 3.7%
Built 2010 or later: 8.3%

When the homes in Barnum Island were built

Housing units by year structure built, 2020–2024
Year built	Barnum Island	Nassau County	New York	United States
2020 or later	0.0% (±4.0 points)	0.8%	0.8%	2.0%
2010 to 2019	8.3% (±7.5 points)	3.2%	5.3%	9.4%
2000 to 2009	4.6% (±5.3 points)	3.3%	6.4%	13.6%
1990 to 1999	5.6% (±4.7 points)	2.7%	5.9%	12.4%
1980 to 1989	16.9% (±8.8 points)	4.7%	7.7%	12.9%
1970 to 1979	4.0% (±2.8 points)	6.1%	9.8%	14.2%
1960 to 1969	35.8% (±11.7 points)	13.2%	12.1%	9.9%
1950 to 1959	19.4% (±10.0 points)	33.9%	14.1%	9.5%
1940 to 1949	1.6% (±2.1 points)	13.0%	7.6%	4.4%
1939 or earlier	3.7% (±3.4 points)	19.2%	30.3%	11.7%

In Barnum Island, the share of homes built before 1980 is lower than in Nassau County (85.4%).

It is not measurably different from New York (73.9%).

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

In Nassau County, Barnum Island ranks 58 of 62 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 275 of 414.

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 (60.5%) and the share built before 1980 (64.5%).

Homes built before 1980 in places near Barnum Island

Nearest places with a published estimate, compared with Barnum Island
Place	Distance	Homes built before 1980	Compared with this place
Barnum Island	—	64.5% (±16.1 points)	—
Village of Island Park	0.6 mi	67.4% (±13.5 points)	Not measurably different
Harbor Isle	1.1 mi	63.5% (±24.7 points)	Not measurably different
Long Beach	1.8 mi	76.7% (±5.3 points)	Not measurably different
Oceanside	2.0 mi	87.8% (±6.0 points)	Higher
Bay Park	2.3 mi	83.8% (±26.8 points)	Not measurably different
Lido Beach	2.3 mi	95.7% (±19.6 points)	Higher
Village of East Rockaway	3.0 mi	94.6% (±12.8 points)	Higher
Village of Hewlett Harbor	3.0 mi	89.0% (±11.2 points)	Higher

Nearby places with a measurably higher figure: Oceanside, NY (87.8%), Lido Beach, NY (95.7%), Village of East Rockaway, NY (94.6%).

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

Homes built before 1980 across Nassau County, place by place

Rank	Place	Homes built before 1980
50 (tie)	Inwood	79.1% (±10.5 points)
53	New Cassel	76.7% (±10.0 points)
54	Roslyn Heights	72.6% (±12.6 points)
55	Jericho	71.4% (±7.0 points)
56	Great Neck Gardens	71.3% (±28.2 points)
57	Uniondale	70.8% (±7.0 points)
58	Barnum Island	64.5% (±16.1 points)
59	Old Bethpage	63.6% (±10.0 points)
60	Harbor Isle	63.5% (±24.7 points)
61	Greenvale	60.3% (±26.0 points)
62	Woodbury (community)	50.4% (±7.8 points)

Showing 11 of 62 places in Nassau County, ranked from highest to lowest.

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

It lies inside the Town of Hempstead, 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 Barnum Island

How old are most homes in Barnum Island?

64.5% of homes in Barnum Island, NY were built before 1980 (2020–2024 American Community Survey).

Do homes in Barnum Island 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 60.5% and 64.5% of homes in Barnum Island were built before then.

Does a contractor need lead certification to work on older homes in Barnum Island?

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 — Barnum Island CDP, New York

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 Barnum Island CDP, New York (place:04550, in state:36).

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.