Cochise County, Arizona — public water systems
At a glance
104 active public water systems are filed under Cochise County, Arizona in EPA's SDWIS records, together reporting 130,277 people served. The largest is Bella Vista City Water System, which reports serving 20,045 people. 53 are community water systems serving people where they live; the other 51 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
104
Population served
130.3K
Community systems
53
Groundwater share
99%
How does Cochise County compare with other Arizona counties?
Cochise County has the 6th-most active public water systems among the 56 counties listed for active Arizona systems in EPA records; among the 19 with 3 or more systems, the median has 63. Its systems report 130,277 people served in total, the 8th-largest county figure in the state and 1.7% of the statewide total. The average system here reports serving 1,253 people, well below the Arizona average of 4,369. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Cochise County's drinking water come from?
By primary water source, Cochise County's active systems draw on groundwater (103, 99%) and surface water (1, 1%). Overall, 99% rely mainly on groundwater (including purchased groundwater) and 1% on surface water, compared with 95% and 4.7% across Arizona. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Bella Vista City Water System, draws primarily on groundwater.
What kinds of water systems operate in Cochise County?
Cochise County's active systems break down as 53 community systems (51%), 19 non-transient non-community systems (18%) and 32 transient non-community systems (31%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (44%), public/private partnership (27%), local government (17%) and federal government (7.7%).
The 50 largest water systems in Cochise County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Bella Vista City Water System | Cochise | 20,045 | Community | Groundwater |
| 2 | Douglas City of | Cochise | 16,656 | Community | Groundwater |
| 3 | Us Army Fort Huachuca | Cochise | 15,603 | Community | Groundwater |
| 4 | Pueblo Del Sol Water Company | Cochise | 12,804 | Community | Groundwater |
| 5 | Arizona Water Co - Sierra Vista | Cochise | 9,175 | Community | Groundwater |
| 6 | Arizona Water Co - Bisbee | Cochise | 8,707 | Community | Groundwater |
| 7 | Benson, City of Water System | Cochise | 5,355 | Community | Groundwater |
| 8 | City of Willcox | Cochise | 3,236 | Community | Groundwater |
| 9 | Bisbee Douglas Intl Airport | Cochise | 2,600 | Community | Groundwater |
| 10 | Adot San Simon Rest Area | Cochise | 2,500 | Transient non-community | Groundwater |
| 11 | Bella Vista Water South | Cochise | 2,178 | Community | Groundwater |
| 12 | East Slope Water Company | Cochise | 1,980 | Community | Groundwater |
| 13 | Town of Huachuca City | Cochise | 1,750 | Community | Groundwater |
| 14 | Pomerene Dwid | Cochise | 1,618 | Community | Groundwater |
| 15 | Southland Utilities - Golden Acres | Cochise | 1,614 | Community | Groundwater |
| 16 | Southern Sunrise Wc Cochise Horseshoe | Cochise | 1,588 | Community | Groundwater |
| 17 | Tombstone City of | Cochise | 1,545 | Community | Surface water |
| 18 | Mescal Lakes Water System | Cochise | 1,390 | Community | Groundwater |
| 19 | Clear Springs Utility Main | Cochise | 1,385 | Community | Groundwater |
| 20 | St David Dwid | Cochise | 1,255 | Community | Groundwater |
| 21 | Cochise County Community College Distric | Cochise | 1,120 | Non-transient non-community | Groundwater |
| 22 | Adot Texas Canyon Rest Area | Cochise | 1,006 | Transient non-community | Groundwater |
| 23 | Whetstone Dwid | Cochise | 940 | Community | Groundwater |
| 24 | Elfrida Wid | Cochise | 800 | Community | Groundwater |
| 25 | Apple Annies Orchard | Cochise | 675 | Transient non-community | Groundwater |
| 26 | Naco Water Co Main | Cochise | 658 | Community | Groundwater |
| 27 | East Slope Water - West | Cochise | 655 | Community | Groundwater |
| 28 | Southern Sunrise Wc Miracle Valley | Cochise | 620 | Community | Groundwater |
| 29 | Northern Sunrise Wc Coronado | Cochise | 553 | Community | Groundwater |
| 30 | Bowie Wid | Cochise | 489 | Community | Groundwater |
| 31 | Aspb Kartchner Caverns | Cochise | 483 | Transient non-community | Groundwater |
| 32 | Douglas Border Patrol Station | Cochise | 450 | Non-transient non-community | Groundwater |
| 33 | Coronado Elementary | Cochise | 446 | Non-transient non-community | Groundwater |
| 34 | Palominas Elementary | Cochise | 421 | Non-transient non-community | Groundwater |
| 35 | Cs Winchester Water Company | Cochise | 402 | Community | Groundwater |
| 36 | Cs Holiday Water Company | Cochise | 395 | Community | Groundwater |
| 37 | Sierra Vista Mh Village | Cochise | 328 | Community | Groundwater |
| 38 | Northern Sunrise Wc Mustang Crystal | Cochise | 315 | Community | Groundwater |
| 39 | San Simon Dwid | Cochise | 312 | Community | Groundwater |
| 40 | Fiesta Canning Co Inc. | Cochise | 300 | Non-transient non-community | Groundwater |
| 41 | Dragoon Water Company | Cochise | 283 | Community | Groundwater |
| 42 | Valley View Elementary | Cochise | 231 | Non-transient non-community | Groundwater |
| 43 | Chiricahua Natl Monument Bonita Cg | Cochise | 200 | Transient non-community | Groundwater |
| 44 | Fort Bowie National Historic Site | Cochise | 200 | Transient non-community | Groundwater |
| 45 | Mountain View Rv Park | Cochise | 200 | Transient non-community | Groundwater |
| 46 | Willow Lakes Property Owners Assoc | Cochise | 190 | Community | Groundwater |
| 47 | Whetstone Ranch Water System | Cochise | 183 | Community | Groundwater |
| 48 | Adot San Simon Port of Entry | Cochise | 175 | Transient non-community | Groundwater |
| 49 | Western Refining Speedway 2962 | Cochise | 162 | Transient non-community | Groundwater |
| 50 | Monte Vista Water Company | Cochise | 150 | Community | Groundwater |
All other water systems in Cochise County (54)
The remaining active systems filed under Cochise County, largest first, with the population each reports serving.
- Quail Ridge Rv Park144
- Cloud Nine Water Company143
- The Pharm140
- Naco Water Co Bisbee138
- Cs Sunizona Water Company136
- Amerind Foundation135
- Coronado Memorial135
- Benson Arizona Koa Kampground120
- Empirita Water Company120
- Stratman Water Company105
- Cochise Elementary School105
- Az Electric Power Apache100
- Valley Union High School100
- Bowie Travel Center100
- Pearce Elementary School100
- Red Barn Campground98
- Usfs Cnf Cave Creek90
- Sweet Springs Mobile Home Park85
- Cochise College Park Water Assoc83
- Double Adobe Rv Park82
- Twin Buttes Rv, LLC79
- Naco Estates75
- Apache Nitrogen Products70
- Sulger Water Company 267
- Mcneal Water Company66
- Mcneal Elementary School64
- Double Adobe School63
- Desert Oasis Campground60
- Blm San Pedro House58
- Johnson Camp Mine Water58
- The Brite Spot57
- Holy Trinity Monastery55
- Parker Lakeview Estates54
- Whetstone Village MHP50
- Sierra Vista Airport50
- Tombstone Investors, LLC50
- Ashley Rose MHP50
- Dairy Queen50
- Ash Creek Elementary School50
- Morning Star Cafe50
- Fort Willcox Rv Park50
- Clear Springs Utility Well 648
- Ntm Aviation47
- Usfs Cnf Douglas Ranger Station45
- Tombstone Territories Rv45
- Southwestern Research Station40
- Portal Store40
- Desert Winds Mobile Park34
- High Low Rv Park30
- Usfs Cnf Lake View30
- La Costa Water Users Assoc30
- Palominas Water Sewer Co27
- The Nature Conservancy25
- Chevron Freeway25
Cochise County water systems: frequently asked questions
How many public water systems are in Cochise County, Arizona?
EPA's SDWIS records file 104 active public water systems under Cochise County, Arizona: 53 community systems (51%), 19 non-transient non-community systems (18%) and 32 transient non-community systems (31%).
Who supplies drinking water in Cochise County, AZ?
The largest community water systems filed under Cochise County are Bella Vista City Water System (20,045 people served), City of Douglas (16,656 people served) and Us Army Fort Huachuca (15,603 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Cochise County's drinking water come from groundwater or surface water?
Of the 104 active public water systems in Cochise County, 99% draw mainly on groundwater and 1% on surface water, counting purchased supplies. The largest system, Bella Vista City Water System, uses groundwater.
Where can I find a water quality report for Cochise County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 53 community systems are filed under Cochise County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Cochise County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Arizona water systems
- All Arizona public water systems· 1,769 active
- Maricopa County· 217 systems
- Pima County· 193 systems
- Mohave County· 119 systems
- Coconino County· 114 systems
- Gila County· 101 systems
- Pinal County· 94 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Public water systems in Cochise County, Arizona”, https://aquacensus.com/water-systems/arizona/cochise (data as of October 1, 2026).