How can I find out if my home has lead-based paint?

Start with the construction date. Homes built before 1950 are statistically near-certain to contain lead-based paint; homes built between 1950 and 1978 commonly do; homes built after 1978 are unlikely to contain it. If your home was built before 1978, the seller was legally required to provide a Lead Paint Disclosure form at purchase under the 1992 Title X (Residential Lead-Based Paint Hazard Reduction Act) — review that. Beyond paperwork, the only way to know is to test.

Is a home built after 1978 guaranteed lead-free?

Almost — but not quite. Lead-based paint cannot have been newly sold into a U.S. home after the 1978 ban, but a homeowner could have used pre-ban paint that was sitting in a garage or basement. Lead paint doesn't last indefinitely on a shelf, so the practical risk in post-1978 construction is very low, but not zero.

Lead in Paint: How Widespread Is It in American Homes?

Q: How many U.S. homes have lead-based paint?

The most recent HUD American Healthy Homes Survey (AHHS-II, 2018–2019) estimates roughly 35–38 million U.S. homes contain lead-based paint — about 1 in 4 of the U.S. housing stock. The earlier 2001 EPA estimate was around 64 million; the reduction reflects abatement and demolition of older housing.

Q: What is the difference between lead-based paint and lead-containing paint?

Under U.S. CPSC regulation (16 CFR Part 1303): 'lead-based paint' is paint with more than 5,000 parts per million (0.5%) lead by dry weight. 'Lead-containing paint' is paint above the modern legal limit of 90 ppm but below the 5,000 ppm threshold. Both have been illegal to sell for residential use in the United States since 1978; the 90 ppm limit took effect in 2009.

Q: Which agency regulates lead in paint?

In the United States, the Consumer Product Safety Commission (CPSC) — not the EPA — regulates lead content in paint sold for consumer use. The original ban took effect in 1978 under 16 CFR Part 1303. The EPA regulates renovation, repair, and painting in homes that already contain lead-based paint (the RRP rule, 40 CFR Part 745).

January 2, 2024

The federal government has been trying to estimate how widespread the lead-paint problem is for decades. The numbers keep getting refined; the takeaway hasn't really changed.

Federal estimates

The U.S. EPA estimated in 2001 that about 64 million U.S. homes contained lead-based paint. They also concluded, candidly, that it would be too hard to enact a program to abate all of it.

The most recent HUD American Healthy Homes Survey II (AHHS-II, 2018–2019) estimates the figure has dropped to roughly 35–38 million homes — about 1 in 4 homes in the U.S. housing stock. The reduction reflects abatement and demolition of older housing. The number of homes with lead-containing paint (below the regulatory 5,000 ppm threshold but above the modern 90 ppm limit) is likely much higher.

The 1977 CPSC ban — and why it flies under the radar

In 1977, the U.S. Consumer Product Safety Commission (CPSC) — not the EPA — set a regulatory limit on the amount of lead allowed in paint sold for consumer use. The rule took effect in 1978 and is codified at 16 CFR Part 1303.

This is one of the underappreciated wrinkles of U.S. lead regulation: most people assume the EPA handles paint. The EPA regulates renovation activities involving lead paint (the RRP rule, 40 CFR Part 745). But the actual product-content limit on paint itself is a CPSC rule. Because of that jurisdictional split, the original paint ban often flies under the public's radar.

Although both scientists and health professionals had known about the dangers of lead and lead-based paint for centuries, it took until 1977 for U.S. regulation to catch up.

Definitions: lead-based vs lead-containing paint

Two terms get used loosely. The legal distinctions matter.

Lead-based paint: paint with more than 5,000 ppm (0.5%) lead by dry weight. This is the threshold from the original 1977 CPSC rule.
Lead-containing paint: paint with more than 90 ppm but less than 5,000 ppm lead by dry weight. The 90 ppm limit took effect in 2009.

Both lead-based and lead-containing paint are illegal to sell in the United States today.

How to figure out whether your home contains it

The lowest-effort, lowest-cost step is to look up your home's construction date.

Built before 1950: Almost certainly contains lead-based paint somewhere.
Built 1950–1978: Commonly contains lead-based paint, especially on trim, windows, and doors.
Built after 1978: Lead-based paint is unlikely to be present.

If your home was built before 1978, the seller was legally required (under the 1992 Residential Lead-Based Paint Hazard Reduction Act, also known as Title X) to provide you with a Lead Paint Disclosure form at the time of purchase. Review it. There's no guarantee the seller actually disclosed everything they knew, but it's a useful starting point.

Homes built after 1978

If your home was built after 1978, the likelihood of lead-based paint inside it is remote. The one realistic exception: a previous owner could have used pre-ban paint that had been sitting in a garage or basement. Paint doesn't last forever on a shelf, so this is a very low-probability scenario, but it's not zero. If you have any reason to suspect a DIY touch-up was done with old paint, test it.

Vintage Pyrex Cinderella bowl glowing cyan — modern perovskite-based field lead test on a household item that pre-dates the 1978 paint ban era — *Modern field-testing chemistry can confirm lead in seconds, without sending samples to a lab.*

Key facts

2001 EPA estimate: ~64 million U.S. homes with lead-based paint
2018–19 HUD AHHS-II estimate: ~35–38 million homes (≈1 in 4)
Regulating agency for paint content: CPSC (16 CFR Part 1303)
Lead-based paint threshold: >5,000 ppm (0.5%) lead by dry weight
Lead-containing paint threshold: 90–5,000 ppm
Effective date of paint ban: 1978
Seller disclosure law: 1992 Title X — Lead Paint Disclosure form required for pre-1978 home sales

Frequently asked questions

How many U.S. homes have lead-based paint?

Roughly 35–38 million per the 2018–19 HUD AHHS-II — about 1 in 4 of the U.S. housing stock. The earlier EPA 2001 estimate was 64 million.

What's the difference between lead-based paint and lead-containing paint?

Lead-based: >5,000 ppm lead by dry weight. Lead-containing: 90–5,000 ppm. Both are illegal to sell for U.S. residential use today.

Which agency regulates lead in paint?

The Consumer Product Safety Commission (CPSC), under 16 CFR Part 1303. The EPA regulates renovation activity involving lead paint (the RRP rule, 40 CFR Part 745) — not the paint product itself.

How can I find out if my home has lead paint?

Check the construction date first. Pre-1950 is near-certain, 1950–1978 is common, post-1978 is unlikely. If pre-1978, review the Lead Paint Disclosure form your seller provided. If you want to be sure, test.

Is a post-1978 home guaranteed lead-free?

Almost. The exception is a homeowner who used pre-ban paint that had been sitting around. Practically rare; not impossible.

References

U.S. CPSC, "Ban of Lead-Containing Paint and Certain Consumer Products Bearing Lead-Containing Paint," 16 CFR Part 1303 (1977 final rule, effective 1978; 90 ppm threshold effective 2009)
U.S. EPA, "Lead-Based Paint Renovation, Repair and Painting Rule (RRP)," 40 CFR Part 745 Subpart E
HUD, American Healthy Homes Survey II (AHHS-II, 2018–2019) — national lead-paint prevalence
U.S. EPA, 2001 estimates re ~64 million homes with lead-based paint
Residential Lead-Based Paint Hazard Reduction Act of 1992 (Title X), 42 U.S.C. § 4851 et seq.