CITY REPORT MD

Upper Marlboro, MD Home Safety: Home Safety 83/100

Name: Water Quality Data for Upper Marlboro, MD
Creator: ZipCheckup
License: https://creativecommons.org/licenses/by/4.0/

5 ZIP codes · 1 water system · Updated

ZipCheckup grade for Upper Marlboro: B.

This ZIP has a few items worth a quick check.

Upper Marlboro, MD: a top-two-band grade.

How Upper Marlboro Compares

Upper Marlboro83/100

Maryland avg69/100

National avg73/100

Data: EPA SDWIS

ZIP Codes

Water Systems

ZIPs Linked to Systems with Violations

B · 83

Avg Safety Score

Zone 2

County Radon Potential (Moderate)

$444K

Median Home Value

$500

Est. Remediation (0.1% of home value)

Upper Marlboro Water: The Quick Version

Estimated remediation: $500 per household.
Health risk index (ZipCheckup composite of CDC data): 13.05.

Water Systems Serving Upper Marlboro

Upper Marlboro, MD: one listed entry, 1 linked overall.

Washington Suburban Sanitary Commission
Serves ~1,900,000 people

B

Overview

We track home safety data for 5 ZIP codes in Upper Marlboro, Maryland (population ~104,989), covering 1 community water system serving approximately 1,900,000 people region-wide. The EPA snapshots used for this build directly map water systems to 2 of 5 ZIP codes.

The available EPA record reports 0 violations for 2 ZIP codes with a reported violation count.

Home Safety Score

Average Home Safety Score for Upper Marlboro: B (83/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor	What It Measures
Water Quality	EPA violations and compliance history
PFAS MCL Screen	UCMR 5 testing against the covered federal MCLs
Radon Risk	EPA radon zone classification
Annual AQI	EPA AirData county-year median with at least 90 observed days

Water Sources

Upper Marlboro water systems draw from: Surface water.

Lead & Copper

Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (EPA action level: 0.015 mg/L)
0 of 2 ZIP codes with known status exceed the EPA lead action level

Radon Risk

5 of 5 ZIP records with known zones are in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Areas with No Violations

ZIP Code	Safety Score	System	Population
20772	B	Washington Suburban Sanitary Commission	1,900,000
20774	B	Washington Suburban Sanitary Commission	1,900,000

All ZIP Codes in Upper Marlboro

Data Sources

Water quality: EPA Safe Drinking Water Information System (SDWIS)
Lead/copper: EPA Lead and Copper Rule sampling data
Radon: EPA Map of Radon Zones

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

CDC Health Data for Upper Marlboro

11.5%

Asthma (US: 9.8%)

15.2%

Diabetes (US: 10.4%)

14.3%

Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 11.5% ↑

Diabetes 15.2% ↑

Mental Health 14.3% ↓

Vertical line = national average. ■ Above national · ■ Below national

Upper Marlboro: Remediation Cost in Perspective

Of the three cost-context tiers - low, moderate and elevated - Upper Marlboro is in the low one.

Median Home Value

$443,500

Est. Remediation

$500

Remediation as % of home value 0.1%

Estimated remediation costs in Upper Marlboro can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 4% above the Maryland average.

Historical Flood-Claim Evidence for Upper Marlboro

133

Total FEMA Flood Claims

$9,566

Avg Reported Sum With Payment Data

A/V Share of Claim-Record ZIPs

Historical NFIP data for Upper Marlboro contains 133 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $9,566. 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 $500 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.

Deep Dive Reports

Detailed analysis for Upper Marlboro, MD

💧

Water Quality

EPA violations, contaminant data, and water system grades

0 EPA violations

⚠️

Lead Risk

Lead levels, housing age, and pipe risk assessment

0 mg/L average of reported 90th-percentile lead results

🌊

Flood Risk

NFIP claim history, recorded rated-zone context, and FEMA property-map guidance

5 tracked ZIP codes

🌬️

Air Quality

AQI data, wildfire smoke risk, mold risk, and health tips

🏠

Home Safety

Composite safety score, remediation costs, equity trap analysis

83/100 model indicator score

🔧

Infrastructure

Water system age, source indicators, and CO/gas safety

Compare with Nearby Cities

Abell, MD

1 ZIP code

Aberdeen, MD

1 ZIP code · 5 EPA violations · Grade D

Aberdeen Proving Ground, MD

1 ZIP code · 3 EPA violations · Grade D

Abingdon, MD

1 ZIP code · 3 EPA violations · Grade C

Accident, MD

1 ZIP code

Frequently Asked Questions

What does the Home Safety Score mean for Upper Marlboro, MD?

Upper Marlboro has an average Home Safety Score of 83/100 (Grade B) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.

How does Upper Marlboro compare to Maryland average?

Upper Marlboro has an average Home Safety Score of 83/100, which is at or above the Maryland state average of 69/100 for the same model series.

How many water systems serve Upper Marlboro?

Our records map 1 water system to 5 ZIP codes in Upper Marlboro. The related population figure in our data is approximately 104,989 people; it is not a count of people served citywide.

How much does it cost to fix water issues in Upper Marlboro?

Estimated remediation cost per household in Upper Marlboro: $500; modeled range $300 to $800. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.

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