CITY REPORT MD

Leonardtown, MD - Home Safety Score unavailable

1 ZIP code · 5 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs with Violations
Zone 2
Radon Risk (Moderate)
$464K
Median Home Value
$2,800
Est. Remediation (0.6% of home value)

What You Should Know About Leonardtown Water

  • Your city's water systems recorded 13 violations in the past 5 years.
  • Homes built before 1986: 32% - older plumbing may contain lead solder.
  • Estimated remediation: $2,800 per household.
  • CDC health risk index: 12.51 - above typical levels.

Who Supplies Your Water in Leonardtown

Water supply in Leonardtown, MD follows a divided structure: 3 utilities account for the largest share of residential service out of 5 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.

Overview

We track home safety data for 1 ZIP code in Leonardtown, Maryland (population ~15,979), covering 5 community water systems serving approximately 50,130 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Water Sources

Leonardtown water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0000 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 2 (Moderate Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Haloacetic Acids (HAA5) Disinfection Byproducts 14 1
Lead Inorganic 4 1
Stage 2 DBP Rule Treatment Technique 4 1
Nickel Inorganic 2 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
20650 13 0 Town of Leonardtown

All ZIP Codes in Leonardtown

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Health Outcomes in Leonardtown

10.7%
Asthma (US: 9.8%)
11.4%
Diabetes (US: 10.4%)
16.4%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.7% ↑
Diabetes 11.4% ↑
Mental Health 16.4% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Leonardtown Water

Haloacetic Acids (HAA5) 14 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure
Lead 4 violations
Inorganic · EPA limit: 0.015 mg/L
Stage 2 DBP Rule 4 violations
Treatment Technique
Disinfection byproduct exposure risk

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Housing & Infrastructure in Leonardtown

1994
Median Build Year
32%
Built Before 1986
10%
Built Before 1970
Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Leonardtown's residential inventory spans multiple construction eras, with the median build year of 1994 landing in a zone where pre- and post-1986 homes are both well represented. That split matters because homes built before 1986 may contain lead-soldered copper joints - a plumbing practice banned that year - while those built before 1970 face the additional possibility of lead pipes in the service line. Whether a specific household sits on the older or newer end of this distribution is the primary variable shaping its individual exposure risk.

1994
Median Year Built
32%
Pre-1986 (Lead Paint Risk)
10%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (10%) 1970–1986 (22%) Post-1986 (68%)

Most homes in Leonardtown were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Cost Context: What Remediation Means for Leonardtown Homeowners

Remediation costs in Leonardtown are small relative to typical property values - the cost-to-value ratio here is favorable.

Median Home Value
$464,000
Est. Remediation
$2,800
Remediation as % of home value 0.6%

Remediation costs in Leonardtown are relatively low compared to home values. The $1,500–$4,800 estimated range is a small fraction of median property value. Home values are 9% above the Maryland average.

Lead Exposure Risk for Children in Leonardtown

32%
Homes Built Before 1986

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Wherever 32% of local housing was built before solder rules changed - as is the case in Leonardtown - a faucet-level sample closes the gap that aggregate utility data cannot.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical NFIP Claim Context in Leonardtown

77
Total FEMA Flood Claims
$47,372
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Leonardtown contains 77 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $47,372. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,800</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

How many water violations does Leonardtown have?
Leonardtown water systems have a total of 13 EPA violations. Violations are tracked across 1 ZIP code.
How many water systems serve Leonardtown?
Leonardtown is served by 5 public water systems across 1 ZIP code, serving approximately 15,979 people.
How much does it cost to fix water issues in Leonardtown?
Estimated remediation costs in Leonardtown average $2,800 per household, ranging from $1,500 to $4,800. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesMaryland → Leonardtown, MD

How to cite this page

APA ZipCheckup. (2026). Leonardtown, MD - Home Safety Score unavailable. https://zipcheckup.com/cities/md/leonardtown/
BibTeX
@misc{zipcheckup-cities-md-leonardtown,
  author = {{ZipCheckup}},
  title  = {{Leonardtown, MD - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/md/leonardtown/}
}

Page version: August 2026.

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