How old are the homes in Lake Mohawk, NJ?

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

72.3% (±9.6 points) of the homes in Lake Mohawk, NJ were built before 1980 (2020–2024 American Community Survey).

21.7% were built before 1940.

3.2% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 72.3% (±9.6 points)
Built before 1940: 21.7%
Built 2010 or later: 3.2%

When the homes in Lake Mohawk were built

Housing units by year structure built, 2020–2024
Year built	Lake Mohawk	Sussex County	New Jersey	United States
2020 or later	0.0% (±1.1 points)	0.7%	1.1%	2.0%
2010 to 2019	3.2% (±3.4 points)	2.1%	6.2%	9.4%
2000 to 2009	6.6% (±2.6 points)	9.6%	9.2%	13.6%
1990 to 1999	5.8% (±2.7 points)	9.0%	8.9%	12.4%
1980 to 1989	12.0% (±3.2 points)	15.4%	11.8%	12.9%
1970 to 1979	14.7% (±4.0 points)	19.0%	12.3%	14.2%
1960 to 1969	11.6% (±3.9 points)	12.5%	12.8%	9.9%
1950 to 1959	15.8% (±4.8 points)	12.6%	13.8%	9.5%
1940 to 1949	8.5% (±3.4 points)	5.0%	6.5%	4.4%
1939 or earlier	21.7% (±5.1 points)	14.1%	17.4%	11.7%

In Lake Mohawk, the share of homes built before 1980 is not measurably different from Sussex County (63.2%).

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

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

In Sussex County, Lake Mohawk ranks 4 of 6 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 85 of 252.

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 (57.6%) and the share built before 1980 (72.3%).

Homes built before 1980 in places near Lake Mohawk

Nearest places with a published estimate, compared with Lake Mohawk
Place	Distance	Homes built before 1980	Compared with this place
Lake Mohawk	—	72.3% (±9.6 points)	—
Andover Township	3.0 mi	56.5% (±9.1 points)	Lower
Andover Borough	4.2 mi	95.9% (±22.6 points)	Not measurably different
Byram Township	4.2 mi	77.0% (±8.2 points)	Not measurably different
Hopatcong Borough	4.3 mi	83.0% (±7.4 points)	Not measurably different
Lake Hopatcong	4.9 mi	72.4% (±11.2 points)	Not measurably different
Newton Town	5.0 mi	76.7% (±8.6 points)	Not measurably different
Byram Center	6.0 mi	82.7% (±13.6 points)	Not measurably different
Ogdensburg Borough	6.0 mi	79.7% (±12.0 points)	Not measurably different

Nearby places with a measurably lower figure: Andover Township, NJ (56.5%).

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

Homes built before 1980 across Sussex County, place by place

Rank	Place	Homes built before 1980
1	Byram Center	82.7% (±13.6 points)
2	Crandon Lakes	77.6% (±20.6 points)
3	Highland Lakes	76.9% (±16.1 points)
4	Lake Mohawk	72.3% (±9.6 points)
5	Vernon Valley	59.2% (±18.3 points)
6	Vernon Center	34.2% (±14.4 points)

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

It lies inside Sparta Township, whose figures include it.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

What you can do on Seayora in Lake Mohawk

One account for renting, owning, managing and fixing homes, with these figures beside you.

Do repairs, renovations or maintenance?

Get found by owners and renters near Lake Mohawk, and send estimates and invoices from your phone.

Join as a pro · Find a pro

Own or manage a rental?

List it, sign the lease and collect rent online, with the figures for Lake Mohawk beside you.

Create a landlord account · See what landlords get

Looking for a place to rent?

Browse homes for rent near Lake Mohawk, save the ones you like and apply online.

Browse rentals · Create a renter account

Questions about Lake Mohawk

How old are most homes in Lake Mohawk?

72.3% of homes in Lake Mohawk, NJ were built before 1980 (2020–2024 American Community Survey).

Do homes in Lake Mohawk 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 57.6% and 72.3% of homes in Lake Mohawk were built before then.

Does a contractor need lead certification to work on older homes in Lake Mohawk?

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 — Lake Mohawk CDP, 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 Lake Mohawk CDP, New Jersey (place:38040, in state:34).

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.