How old are the homes in Mandeville, LA?

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

26.2% (±6.3 points) of the homes in Mandeville, LA were built before 1980 (2020–2024 American Community Survey).

2.1% were built before 1940.

10.4% were built in 2010 or later.

Figures last updated on November 12, 2026.

Built before 1980: 26.2% (±6.3 points)
Built before 1940: 2.1%
Built 2010 or later: 10.4%

When the homes in Mandeville were built

Housing units by year structure built, 2020–2024
Year built	Mandeville	St. Tammany Parish	Louisiana	United States
2020 or later	3.2% (±1.7 points)	3.3%	1.8%	2.0%
2010 to 2019	7.2% (±2.9 points)	14.1%	11.9%	9.4%
2000 to 2009	17.9% (±4.4 points)	23.6%	14.3%	13.6%
1990 to 1999	20.5% (±4.3 points)	19.9%	11.2%	12.4%
1980 to 1989	25.1% (±5.8 points)	17.6%	14.5%	12.9%
1970 to 1979	11.8% (±3.8 points)	12.6%	16.9%	14.2%
1960 to 1969	7.3% (±4.2 points)	4.6%	11.1%	9.9%
1950 to 1959	3.2% (±2.2 points)	1.6%	8.4%	9.5%
1940 to 1949	1.8% (±1.3 points)	1.1%	3.7%	4.4%
1939 or earlier	2.1% (±1.0 points)	1.6%	6.1%	11.7%

In Mandeville, the share of homes built before 1980 is not measurably different from St. Tammany Parish (21.5%).

It is also lower than in Louisiana (46.2%).

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

In St. Tammany Parish, Mandeville ranks 6 of 10 places with a published estimate, from highest to lowest share of homes built before 1980.

Statewide, it ranks 364 of 410.

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 (14.4%) and the share built before 1980 (26.2%).

Homes built before 1980 in places near Mandeville

Nearest places with a published estimate, compared with Mandeville
Place	Distance	Homes built before 1980	Compared with this place
Mandeville	—	26.2% (±6.3 points)	—
Madisonville	4.2 mi	36.1% (±11.7 points)	Not measurably different
Covington	7.2 mi	29.1% (±6.0 points)	Not measurably different
Abita Springs	8.2 mi	20.8% (±7.2 points)	Not measurably different
Lacombe	11 mi	24.3% (±6.2 points)	Not measurably different
Folsom	19 mi	20.8% (±20.7 points)	Not measurably different
Slidell	20 mi	54.4% (±5.2 points)	Higher
Eden Isle	20 mi	12.5% (±4.8 points)	Lower
Ponchatoula	21 mi	39.2% (±9.5 points)	Higher

Nearby places with a measurably lower figure: Eden Isle, LA (12.5%).

Nearby places with a measurably higher figure: Slidell, LA (54.4%), Ponchatoula, LA (39.2%).

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

Homes built before 1980 across St. Tammany Parish, place by place

Rank	Place	Homes built before 1980
1	Slidell	54.4% (±5.2 points)
2	Sun	37.7% (±15.8 points)
3	Madisonville	36.1% (±11.7 points)
4	Covington	29.1% (±6.0 points)
5	Pearl River	28.7% (±10.3 points)
6	Mandeville	26.2% (±6.3 points)
7	Lacombe	24.3% (±6.2 points)
8 (tie)	Abita Springs	20.8% (±7.2 points)
8 (tie)	Folsom	20.8% (±20.7 points)
10	Eden Isle	12.5% (±4.8 points)

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 Mandeville

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 Mandeville, 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 Mandeville beside you.

Create a landlord account · See what landlords get

Looking for a place to rent?

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

Browse rentals · Create a renter account

Questions about Mandeville

How old are most homes in Mandeville?

26.2% of homes in Mandeville, LA were built before 1980 (2020–2024 American Community Survey).

Do homes in Mandeville 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 14.4% and 26.2% of homes in Mandeville were built before then.

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

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 — Mandeville city, Louisiana

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 Mandeville city, Louisiana (place:48225, in state:22).

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.