How old are the homes in Bonsall, CA?

22.7% (±7.6 points) of the homes in Bonsall, CA were built before 1980 (2020–2024 American Community Survey).

1.0% were built before 1940.

10.1% were built in 2010 or later.

Figures last updated on .

Built before 1980
22.7% (±7.6 points)
Built before 1940
1.0%
Built 2010 or later
10.1%

When the homes in Bonsall were built

Housing units by year structure built, 2020–2024
Year builtBonsallSan Diego CountyCaliforniaUnited States
2020 or later5.4% (±3.4 points)1.4%1.3%2.0%
2010 to 20194.7% (±4.1 points)6.9%6.5%9.4%
2000 to 200914.1% (±4.8 points)12.2%11.2%13.6%
1990 to 199922.4% (±7.1 points)11.3%10.1%12.4%
1980 to 198930.8% (±8.7 points)18.6%14.9%12.9%
1970 to 197913.9% (±5.1 points)21.4%16.8%14.2%
1960 to 19696.8% (±4.8 points)11.2%12.5%9.9%
1950 to 19591.0% (±1.1 points)9.8%12.4%9.5%
1940 to 19490.0% (±2.4 points)3.0%5.4%4.4%
1939 or earlier1.0% (±1.1 points)4.0%8.9%11.7%

In Bonsall, the share of homes built before 1980 is lower than in San Diego County (49.4%).

It is also lower than in California (56.0%).

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

In San Diego County, Bonsall ranks 46 of 50 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 972 of 1,076.

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 (8.8%) and the share built before 1980 (22.7%).

Homes built before 1980 in places near Bonsall

Nearest places with a published estimate, compared with Bonsall
PlaceDistanceHomes built before 1980Compared with this place
Bonsall—22.7% (±7.6 points)—
Hidden Meadows5.5 mi32.4% (±16.4 points)Not measurably different
Vista6.5 mi37.0% (±2.6 points)Higher
Fallbrook7.1 mi48.9% (±5.4 points)Higher
Oceanside7.5 mi38.0% (±1.7 points)Higher
Camp Pendleton Mainside8.3 mi21.6% (±17.9 points)Not measurably different
Rainbow9.8 mi58.6% (±13.7 points)Higher
San Marcos9.9 mi27.4% (±2.2 points)Not measurably different
Valley Center11 mi33.8% (±7.5 points)Higher

Nearby places with a measurably higher figure: Vista, CA (37.0%), Fallbrook, CA (48.9%), Oceanside, CA (38.0%).

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

Homes built before 1980 across San Diego County, place by place

RankPlaceHomes built before 1980
40Valley Center33.8% (±7.5 points)
41Hidden Meadows32.4% (±16.4 points)
42Carlsbad29.8% (±2.0 points)
43San Marcos27.4% (±2.2 points)
44San Diego Country Estates26.0% (±7.9 points)
45Rancho San Diego25.4% (±4.2 points)
46Bonsall22.7% (±7.6 points)
47Camp Pendleton Mainside21.6% (±17.9 points)
48Harmony Grove16.8% (±14.3 points)
49Camp Pendleton South15.8% (±7.1 points)
50Fairbanks Ranch6.0% (±9.4 points)

Showing 11 of 50 places in San Diego County, ranked from highest to lowest.

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

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 Bonsall

How old are most homes in Bonsall?

22.7% of homes in Bonsall, CA were built before 1980 (2020–2024 American Community Survey).

Do homes in Bonsall 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 8.8% and 22.7% of homes in Bonsall were built before then.

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

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

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 Bonsall CDP, California (place:07498, in state:06).

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.

Figures last updated on .

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