State distribution
Hardness across indexed ZIPs
Counts describe published ZIP profiles, not a population-weighted statewide sample.
Soft · 0–60 PPM0
Moderately hard · 61–120 PPM27
Hard · 121–180 PPM26
Very hard · 181+ PPM141
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 indexed hardness
228PPM
Very Hard
Indexed range 74.2–688.5 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 141 of 194 profiles with hardness data. The state median is 228 PPM, but the full indexed range is 74.2–688.5 PPM.
Evidence coverage
What the current records support
- Hardness estimate
- 99%
- Lead 90th percentile
- 100%
- Copper 90th percentile
- 9%
36
Low-confidence hardness profiles
36
Nearest site more than 25 miles away
Reported source water
Utility source mix
- Groundwater
- 295
- Surface water
- 35
- Groundwater influenced by surface water
- 3
Highest medians
Hardest indexed cities
- 1. Raton675 PPM
- 2. Nageezi654 PPM
- 3. Lindrith617 PPM
- 4. Artesia583 PPM
- 5. Carlsbad583 PPM
Lowest medians
Softest indexed cities
- 1. Los Ojos91 PPM
- 2. Aragon91 PPM
- 3. Datil94 PPM
- 4. Santa Fe95 PPM
- 5. Rio Rancho95 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
166PPM
Single indexed valueNo active flag
Alamogordo
Otero County · 1 ZIP
371PPM
Single indexed value3 active records
Albuquerque
Bernalillo County · 14 ZIPs
99PPM
Range 95–11012 active records
Angel Fire
Colfax County · 1 ZIP
183PPM
Single indexed value6 active records
Anton Chico
San Miguel County · 1 ZIP
203PPM
Single indexed value1 active record
Aragon
Catron County · 1 ZIP
91PPM
Single indexed value1 active record
Arenas Valley
Grant County · 1 ZIP
472PPM
Single indexed valueNo active flag
Arroyo Hondo
Taos County · 1 ZIP
172PPM
Single indexed value4 active records
Arroyo Seco
Taos County · 2 ZIPs
186PPM
Range 182.5–189No active flag
Artesia
Eddy County · 1 ZIP
583PPM
Single indexed valueNo active flag
Aztec
San Juan County · 1 ZIP
147PPM
Single indexed value8 active records
Bayard
Grant County · 1 ZIP
497PPM
Single indexed valueNo active flag
Belen
Valencia County · 1 ZIP
243PPM
Single indexed value8 active records
Blanco
Rio Arriba County · 1 ZIP
132PPM
Single indexed valueNo active flag
Bloomfield
San Juan County · 1 ZIP
139PPM
Single indexed valueNo active flag
Bosque Farms
Bernalillo County · 1 ZIP
235PPM
Single indexed value1 active record
Canjilon
Rio Arriba County · 1 ZIP
162PPM
Single indexed valueNo active flag
Cannon Afb
Curry County · 1 ZIP
263PPM
Single indexed valueNo active flag
Capitan
Lincoln County · 1 ZIP
438PPM
Single indexed valueNo active flag
Capulin
Colfax County · 2 ZIPs
139PPM
Range 74.2–204.51 active record
Carlsbad
Eddy County · 1 ZIP
583PPM
Single indexed value1 active record
Carrizozo
Lincoln County · 1 ZIP
438PPM
Single indexed value5 active records
Causey
Roosevelt County · 2 ZIPs
287PPM
Range 287–287.5No active flag
Cedar Crest
Bernalillo County · 1 ZIP
232PPM
Single indexed value9 active records
County comparison
Highest indexed county medians
| County | Median | Range | ZIP profiles |
|---|---|---|---|
| Sierra County | 479 PPM | 422–688.5 | 3 |
| Grant County | 472 PPM | 445–497 | 6 |
| Lea County | 465 PPM | 318–482 | 7 |
| Eddy County | 451 PPM | 437–582.5 | 5 |
| Chaves County | 446 PPM | 356–542 | 6 |
| Doña Ana County | 388 PPM | 224–478 | 14 |
| Otero County | 381 PPM | 287.5–453.5 | 10 |
| Luna County | 380 PPM | 380–380 | 1 |
| Lincoln County | 366 PPM | 287.5–446.5 | 8 |
| Roosevelt County | 286 PPM | 264–287.5 | 6 |
| Curry County | 258 PPM | 258–263 | 4 |
| Quay County | 253 PPM | 209–263 | 5 |