How old are the homes in Lake Barrington, IL?

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

37.0% (±6.3 points) of the homes in Lake Barrington, IL were built before 1980 (2020–2024 American Community Survey).

0.2% were built before 1940.

2.6% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 37.0% (±6.3 points)
Built before 1940: 0.2%
Built 2010 or later: 2.6%

When the homes in Lake Barrington were built

Housing units by year structure built, 2020–2024
Year built	Lake Barrington	Lake County	Illinois	United States
2020 or later	0.5% (±0.7 points)	0.6%	0.7%	2.0%
2010 to 2019	2.1% (±1.5 points)	4.9%	5.0%	9.4%
2000 to 2009	14.8% (±4.8 points)	14.9%	11.2%	13.6%
1990 to 1999	20.7% (±7.4 points)	18.4%	10.5%	12.4%
1980 to 1989	25.1% (±7.2 points)	14.9%	9.2%	12.9%
1970 to 1979	31.4% (±5.2 points)	15.3%	14.2%	14.2%
1960 to 1969	1.4% (±1.1 points)	9.5%	11.5%	9.9%
1950 to 1959	1.8% (±1.9 points)	9.4%	11.9%	9.5%
1940 to 1949	2.2% (±2.9 points)	3.6%	5.6%	4.4%
1939 or earlier	0.2% (±0.2 points)	8.4%	20.2%	11.7%

In Lake Barrington, the share of homes built before 1980 is lower than in Lake County (46.2%).

It is also lower than in Illinois (63.4%).

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

In Lake County, Lake Barrington ranks 45 of 71 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 2478 of 2,751.

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 (5.6%) and the share built before 1980 (37.0%).

Homes built before 1980 in places near Lake Barrington

Nearest places with a published estimate, compared with Lake Barrington
Place	Distance	Homes built before 1980	Compared with this place
Lake Barrington	—	37.0% (±6.3 points)	—
Cuba Township	1.0 mi	51.1% (±4.4 points)	Higher
Tower Lakes	1.4 mi	79.9% (±14.8 points)	Higher
North Barrington	2.1 mi	44.7% (±8.5 points)	Not measurably different
Fox River Grove	2.5 mi	49.5% (±14.0 points)	Not measurably different
Port Barrington	2.7 mi	20.3% (±6.2 points)	Lower
Cary	4.1 mi	38.8% (±5.9 points)	Not measurably different
Trout Valley	4.3 mi	87.7% (±20.2 points)	Higher
Lake Zurich	4.3 mi	35.8% (±4.3 points)	Not measurably different

Nearby places with a measurably lower figure: Port Barrington, IL (20.3%).

Nearby places with a measurably higher figure: Cuba Township, IL (51.1%), Tower Lakes, IL (79.9%), Trout Valley, IL (87.7%).

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

Homes built before 1980 across Lake County, place by place

Rank	Place	Homes built before 1980
39	Wauconda Township	41.0% (±4.5 points)
40	Gages Lake	40.9% (±6.4 points)
41	Mundelein	39.9% (±4.2 points)
42	Beach Park	39.7% (±7.4 points)
43	Antioch	37.7% (±6.3 points)
44	Avon Township	37.6% (±3.1 points)
45	Lake Barrington	37.0% (±6.3 points)
46	Green Oaks	36.9% (±14.8 points)
47	Lake Zurich	35.8% (±4.3 points)
48	Lindenhurst	34.5% (±5.0 points)
49	Vernon Township	33.7% (±2.4 points)
50	Ela Township	33.3% (±2.8 points)
51	Newport Township	32.2% (±10.7 points)

Showing 13 of 71 places in Lake 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 Lake Barrington

How old are most homes in Lake Barrington?

37.0% of homes in Lake Barrington, IL were built before 1980 (2020–2024 American Community Survey).

Do homes in Lake Barrington 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 5.6% and 37.0% of homes in Lake Barrington were built before then.

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

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 Barrington village, Illinois

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 Barrington village, Illinois (place:40884, in state:17).

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.