State distribution
Hardness across indexed ZIPs
Counts describe published ZIP profiles, not a population-weighted statewide sample.
Soft · 0–60 PPM39
Moderately hard · 61–120 PPM11
Hard · 121–180 PPM1
Very hard · 181+ PPM21
State water index
Mississippi water hardness
Search 109 indexed communities and 146 ZIP profiles, then compare the underlying utility, source, distance, and reporting context.
Median regional evidence
56PPM
Soft
Indexed range 0.8–451 PPM
- ZIP profiles
- 146
- Cities
- 109
- Matched utilities
- 134
- Counties
- 61
Understanding Mississippi
Why local comparisons matter here
Mississippi lies largely within the Gulf Coastal Plain and includes thick groundwater aquifers as well as river and alluvial settings.
In this index, soft is the largest category, covering 39 of 72 profiles with hardness data. The state median is 56 PPM, but the full indexed range is 0.8–451 PPM.
Evidence coverage
What the current records support
- Hardness estimate
- 49%
- Lead 90th percentile
- 100%
- Copper 90th percentile
- 5%
46
Low-confidence hardness profiles
19
Research-comparison eligible profiles
Reported source water
Utility source mix
- Groundwater
- 128
- Surface water
- 6
Highest medians
Highest eligible city medians
Lowest medians
Lowest eligible city medians
City directory
Explore Mississippi by city
Search by city or county, then sort by name, hardness, or ZIP coverage.
109 cities · 146 ZIP profiles
109 cities found
Page 1 of 5
Amory
Monroe County · 1 ZIP
9PPM regional
Single regional valueNo active flag
Batesville
Panola County · 1 ZIP
23PPM regional
Single regional valueNo active flag
Belzoni
Humphreys County · 1 ZIP
251PPM regional
Single regional valueNo active flag
Biloxi
Harrison County · 4 ZIPs
—
No regional sampleNo active flag
Bogue Chitto
Lincoln County · 1 ZIP
—
No regional sampleNo active flag
Booneville
Prentiss County · 1 ZIP
—
No regional sampleNo active flag
Brandon
Rankin County · 1 ZIP
1PPM regional
Single regional valueNo active flag
Brookhaven
Lincoln County · 1 ZIP
—
No regional sampleNo active flag
Bruce
Calhoun County · 1 ZIP
38PPM regional
Single regional valueNo active flag
Buckatunna
Wayne County · 1 ZIP
—
No regional sampleNo active flag
Canton
Madison County · 1 ZIP
—
No regional sampleNo active flag
Clara
Wayne County · 1 ZIP
—
No regional sampleNo active flag
Cleveland
Bolivar County · 2 ZIPs
305PPM regional
Regional range 301–308No active flag
Clinton
Hinds County · 3 ZIPs
451PPM regional
Single regional valueNo active flag
Collins
Covington County · 1 ZIP
—
No regional sampleNo active flag
Collinsville
Lauderdale County · 1 ZIP
—
No regional sampleNo active flag
Columbia
Marion County · 1 ZIP
—
No regional sampleNo active flag
Columbus
Lowndes County · 3 ZIPs
13PPM regional
Regional range 11.3–21.3No active flag
Corinth
Alcorn County · 1 ZIP
—
No regional sampleNo active flag
Crystal Springs
Copiah County · 1 ZIP
—
No regional sampleNo active flag
D'Iberville
Harrison County · 1 ZIP
—
No regional sampleNo active flag
Drew
Sunflower County · 1 ZIP
253PPM regional
Single regional valueNo active flag
Durant
Holmes County · 1 ZIP
12PPM regional
Single regional valueNo active flag
Ellisville
Jones County · 1 ZIP
—
No regional sampleNo active flag
County comparison
Highest regional-evidence county medians
| County | Median | Range | ZIP profiles |
|---|---|---|---|
| Hinds County | 451 PPM | 451–451 | 17 |
| Quitman County | 427 PPM | 427–427 | 1 |
| Warren County | 416 PPM | 403–429 | 2 |
| Sharkey County | 396 PPM | 395.5–395.5 | 1 |
| Bolivar County | 308 PPM | 294–367 | 5 |
| Washington County | 276 PPM | 209–366.5 | 4 |
| Sunflower County | 253 PPM | 252.5–263 | 3 |
| Humphreys County | 251 PPM | 251–251 | 1 |
| Leflore County | 241 PPM | 230–251 | 2 |
| Lee County | 98 PPM | 98.1–98.1 | 4 |
| Prentiss County | 98 PPM | 98.1–98.1 | 2 |
| Lauderdale County | 75 PPM | 74.9–74.9 | 5 |