Holcomb, MS Water Safety: 73/100 (2026)
1 ZIP code · 5 water systems · Updated 2026-06-03
Compared to statewide averages in MS, Holcomb scores well — health violations are below the norm and systems generally operate within federal standards.
How Holcomb Compares
Data: EPA SDWIS Last verified: 2026-06-03
Holcomb Water: The Quick Version
- Homes built before 1986: 23% — older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 17 — above typical levels.
Water Systems Serving Holcomb
Residential addresses in Holcomb, MS are served by 3 primary water providers out of 5 systems in federal records. Each system maintains separate infrastructure and files its own EPA compliance reports, so service conditions are not uniform across the city.
Overview
We track water quality and home safety data for 1 ZIP code in Holcomb, Mississippi (population ~1,741), covering 5 community water systems serving approximately 17,631 people region-wide.
No EPA violations recorded across any ZIP codes in Holcomb — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Holcomb: B (73/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Holcomb water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Holcomb
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 38940 | B | City of Grenada | 12,762 |
All ZIP Codes in Holcomb
- 38940 [B]
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
Updated daily.
CDC Health Data for Holcomb
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
How Old Is Holcomb's Housing Stock?
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
Why does housing age matter for water safety? Homes built before 1986 may have lead-soldered copper plumbing joints — a practice banned that year. Holcomb's median build year of 1993 places much of the city's housing in the post-ban era, reducing that specific risk pathway for most residents.
Most homes in Holcomb 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.
Holcomb: Remediation Cost in Perspective
At current valuations, Holcomb falls in the moderate remediation-share tier — a level where treating this as a budgeted line item rather than an ad-hoc expense is the practical approach.
Remediation costs are moderate relative to home values in Holcomb. The estimated $800–$1,800 range is manageable for most homeowners but still worth budgeting for. Home values are 19% below the Mississippi average.
Protecting Children from Lead in Holcomb
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.
Where pre-rule stock represents a smaller fraction of the inventory — 23% across Holcomb — the structural drivers of household exposure run thinner. Aggregate readings under the federal benchmark reinforce that picture, with one-home draws remaining the only direct measurement for a specific address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Holcomb
Flood exposure in Holcomb is meaningful by NFIP measures — 1 claim on record and 100% of ZIP codes carrying FEMA flood zone designations. That level of activity makes flood history a relevant factor when evaluating local water quality over time.
Holcomb has a moderate flood history with 1 FEMA claims averaging $5,000 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$1,200</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Holcomb, MS