State distribution
Hardness across indexed ZIPs
Counts describe published ZIP profiles, not a population-weighted statewide sample.
Soft · 0–60 PPM15
Moderately hard · 61–120 PPM10
Hard · 121–180 PPM39
Very hard · 181+ PPM93
State water index
New Mexico water hardness
Search 161 indexed communities and 195 ZIP profiles, then compare the underlying utility, source, distance, and reporting context.
Median regional evidence
206PPM
Very Hard
Indexed range 2.1–1435 PPM
- ZIP profiles
- 195
- Cities
- 161
- Matched utilities
- 333
- Counties
- 31
Understanding New Mexico
Why local comparisons matter here
New Mexico's communities use Rio Grande and reservoir supplies, mountain sources, and groundwater from multiple arid-region basins and aquifers.
In this index, very hard is the largest category, covering 93 of 157 profiles with hardness data. The state median is 206 PPM, but the full indexed range is 2.1–1435 PPM.
Evidence coverage
What the current records support
- Hardness estimate
- 81%
- Lead 90th percentile
- 100%
- Copper 90th percentile
- 7%
50
Low-confidence hardness profiles
66
Research-comparison eligible profiles
Reported source water
Utility source mix
- Groundwater
- 295
- Surface water
- 35
- Groundwater influenced by surface water
- 3
Highest medians
Highest eligible city medians
- 1. Ruidoso288 PPM
- 2. Albuquerque121 PPM
Lowest medians
Lowest eligible city medians
- 1. Albuquerque121 PPM
- 2. Ruidoso288 PPM
City directory
Explore New Mexico by city
Search by city or county, then sort by name, hardness, or ZIP coverage.
161 cities · 195 ZIP profiles
161 cities found
Page 1 of 7
Abiquiu
Rio Arriba County · 1 ZIP
57PPM regional
Single regional valueNo active flag
Alamogordo
Otero County · 1 ZIP
—
No regional sample3 active records
Albuquerque
Bernalillo County · 14 ZIPs
121PPM regional
Regional range 121–12816 active records
Angel Fire
Colfax County · 1 ZIP
140PPM regional
Single regional value6 active records
Anton Chico
San Miguel County · 1 ZIP
209PPM regional
Single regional value1 active record
Aragon
Catron County · 1 ZIP
87PPM regional
Single regional value1 active record
Arenas Valley
Grant County · 1 ZIP
—
No regional sampleNo active flag
Arroyo Hondo
Taos County · 1 ZIP
227PPM regional
Single regional value4 active records
Arroyo Seco
Taos County · 2 ZIPs
271PPM regional
Regional range 262–279No active flag
Artesia
Eddy County · 1 ZIP
678PPM regional
Single regional valueNo active flag
Aztec
San Juan County · 1 ZIP
134PPM regional
Single regional value8 active records
Bayard
Grant County · 1 ZIP
—
No regional sampleNo active flag
Belen
Valencia County · 1 ZIP
313PPM regional
Single regional value19 active records
Blanco
Rio Arriba County · 1 ZIP
135PPM regional
Single regional valueNo active flag
Bloomfield
San Juan County · 1 ZIP
151PPM regional
Single regional valueNo active flag
Bosque Farms
Bernalillo County · 1 ZIP
237PPM regional
Single regional value1 active record
Canjilon
Rio Arriba County · 1 ZIP
57PPM regional
Single regional valueNo active flag
Cannon Afb
Curry County · 1 ZIP
264PPM regional
Single regional valueNo active flag
Capitan
Lincoln County · 1 ZIP
296PPM regional
Single regional valueNo active flag
Capulin
Colfax County · 2 ZIPs
121PPM regional
Single regional value1 active record
Carlsbad
Eddy County · 1 ZIP
1110PPM regional
Single regional value1 active record
Carrizozo
Lincoln County · 1 ZIP
358PPM regional
Single regional value7 active records
Causey
Roosevelt County · 2 ZIPs
277PPM regional
Regional range 214.5–340No active flag
Cedar Crest
Bernalillo County · 1 ZIP
229PPM regional
Single regional value10 active records
County comparison
Highest regional-evidence county medians
| County | Median | Range | ZIP profiles |
|---|---|---|---|
| Eddy County | 896 PPM | 228–1435 | 5 |
| Sierra County | 626 PPM | 626–626 | 3 |
| Chaves County | 503 PPM | 340–588 | 6 |
| Otero County | 478 PPM | 115.5–606.5 | 10 |
| Cibola County | 398 PPM | 151.5–415.5 | 5 |
| Lea County | 367 PPM | 187–639 | 7 |
| Lincoln County | 292 PPM | 287.5–358 | 8 |
| Curry County | 264 PPM | 258–319 | 4 |
| Roosevelt County | 258 PPM | 214.5–340 | 6 |
| Valencia County | 242 PPM | 230–312.5 | 3 |
| Taos County | 227 PPM | 174–350 | 11 |
| Socorro County | 226 PPM | 205.5–277 | 3 |