Pitkin County, Colorado — public water systems
At a glance
49 active public water systems are filed under Pitkin County, Colorado in EPA's SDWIS records, together reporting 53,175 people served. The largest is City of Aspen, which reports serving 31,100 people. 26 are community water systems serving people where they live; the other 23 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
49
Population served
53.2K
Community systems
26
Groundwater share
77.6%
How does Pitkin County compare with other Colorado counties?
Pitkin County has the 16th-most active public water systems among the 113 counties listed for active Colorado systems in EPA records; among the 65 with 3 or more systems, the median has 18. Its systems report 53,175 people served in total, the 20th-largest county figure in the state and 0.7% of the statewide total. The average system here reports serving 1,085 people, well below the Colorado average of 3,400. 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 Pitkin County's drinking water come from?
By primary water source, Pitkin County's active systems draw on groundwater (34, 69%), surface water (9, 18%), groundwater under influence of surface water (4, 8.2%) and purchased surface water (2, 4.1%). Overall, 78% rely mainly on groundwater (including purchased groundwater) and 22% on surface water, compared with 74% and 26% across Colorado. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, City of Aspen, draws primarily on surface water.
What kinds of water systems operate in Pitkin County?
Pitkin County's active systems break down as 26 community systems (53%), 3 non-transient non-community systems (6.1%) and 20 transient non-community systems (41%). 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 (71%), local government (18%) and federal government (10%).
Water systems in Pitkin County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Aspen City of | Pitkin | 31,100 | Community | Surface water |
| 2 | Snowmass Village Wsd | Pitkin | 6,353 | Community | Surface water |
| 3 | Aspen Ski Corp Hi Alpine L9 | Pitkin | 2,900 | Transient non-community | Surface water |
| 4 | Aspen Ski Corp Garrett Gulch | Pitkin | 2,630 | Transient non-community | Surface water |
| 5 | Aspen Ski Co Sundeck | Pitkin | 1,801 | Transient non-community | Groundwater under influence of surface water |
| 6 | Aspen Ski Corp Elk Camp | Pitkin | 1,380 | Transient non-community | Surface water |
| 7 | Aspen Ski Co Cliff House | Pitkin | 1,002 | Transient non-community | Groundwater |
| 8 | Maroon Lake | Pitkin | 550 | Transient non-community | Groundwater |
| 9 | Brush Creek Wd | Pitkin | 516 | Community | Purchased surface water |
| 10 | Roaring Fork Club | Pitkin | 364 | Non-transient non-community | Groundwater |
| 11 | Wj Metro District | Pitkin | 324 | Community | Groundwater under influence of surface water |
| 12 | Lazy Glen Hoa | Pitkin | 322 | Community | Groundwater |
| 13 | Aspen Village Md | Pitkin | 300 | Community | Groundwater under influence of surface water |
| 14 | Starwood Metropolitan District | Pitkin | 300 | Community | Groundwater |
| 15 | Holland Hills Md | Pitkin | 225 | Community | Groundwater |
| 16 | Woody Creek Metropolitan District | Pitkin | 220 | Community | Groundwater |
| 17 | Catto Center at Toklat | Pitkin | 206 | Transient non-community | Surface water |
| 18 | Buttermilk Md | Pitkin | 200 | Community | Purchased surface water |
| 19 | Compass Aspen Community School | Pitkin | 181 | Non-transient non-community | Groundwater |
| 20 | Redstone Wsd | Pitkin | 180 | Community | Surface water |
| 21 | Gateway Md | Pitkin | 160 | Community | Groundwater |
| 22 | Little Elk Creek | Pitkin | 150 | Community | Groundwater under influence of surface water |
| 23 | Pine Creek Cookhouse | Pitkin | 144 | Transient non-community | Surface water |
| 24 | Carbondale Crystal River Koa | Pitkin | 129 | Transient non-community | Groundwater |
| 25 | Beyul Retreat Inc. | Pitkin | 112 | Transient non-community | Groundwater |
| 26 | T Lazy 7 Guest Ranch | Pitkin | 111 | Transient non-community | Groundwater |
| 27 | Difficult Cg | Pitkin | 105 | Transient non-community | Groundwater |
| 28 | Grace Church of the Roaring Fork Valley | Pitkin | 101 | Transient non-community | Groundwater |
| 29 | Pitkin Green Hoa | Pitkin | 99 | Transient non-community | Groundwater |
| 30 | Swiss Village Hoa | Pitkin | 95 | Community | Groundwater |
| 31 | Chapman Campground | Pitkin | 90 | Transient non-community | Groundwater |
| 32 | Redstone Ii | Pitkin | 74 | Transient non-community | Groundwater |
| 33 | White Horse Springs Wd | Pitkin | 70 | Community | Groundwater |
| 34 | Kk Water Assoc | Pitkin | 70 | Community | Groundwater |
| 35 | Orchard Estates | Pitkin | 64 | Community | Groundwater |
| 36 | Avalanche Assoc | Pitkin | 59 | Transient non-community | Groundwater |
| 37 | Prince Creek Village Hoa | Pitkin | 50 | Community | Groundwater |
| 38 | Wildwood School | Pitkin | 50 | Non-transient non-community | Groundwater |
| 39 | Redstone I Osgood Cg | Pitkin | 48 | Transient non-community | Groundwater |
| 40 | Phillips Mobile Home Park | Pitkin | 44 | Community | Groundwater |
| 41 | Pitkin Iron Hoa | Pitkin | 41 | Community | Groundwater |
| 42 | Crystal River Country Estates Water Co | Pitkin | 40 | Community | Groundwater |
| 43 | Aspen Ski Co Cafe West | Pitkin | 35 | Transient non-community | Groundwater |
| 44 | Wildcat Ranch | Pitkin | 33 | Community | Surface water |
| 45 | Rivers Bend Condo Assoc | Pitkin | 32 | Community | Groundwater |
| 46 | Aspen Camp for the Deaf | Pitkin | 30 | Transient non-community | Groundwater |
| 47 | Water View Condominium Assoc | Pitkin | 30 | Community | Groundwater |
| 48 | West Ranch Subd | Pitkin | 28 | Community | Groundwater |
| 49 | Lazy O Ranch | Pitkin | 27 | Community | Groundwater |
Pitkin County water systems: frequently asked questions
How many public water systems are in Pitkin County, Colorado?
EPA's SDWIS records file 49 active public water systems under Pitkin County, Colorado: 26 community systems (53%), 3 non-transient non-community systems (6.1%) and 20 transient non-community systems (41%).
Who supplies drinking water in Pitkin County, CO?
The largest community water systems filed under Pitkin County are City of Aspen (31,100 people served), Snowmass Village Wsd (6,353 people served) and Brush Creek Wd (516 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 Pitkin County's drinking water come from groundwater or surface water?
Of the 49 active public water systems in Pitkin County, 78% draw mainly on groundwater and 22% on surface water, counting purchased supplies. The largest system, City of Aspen, uses surface water.
Where can I find a water quality report for Pitkin 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. 26 community systems are filed under Pitkin 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 Pitkin 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 Colorado water systems
- All Colorado public water systems· 2,207 active
- Gunnison County· 71 systems
- Chaffee County· 68 systems
- Routt County· 51 systems
- Teller County· 51 systems
- Rio Grande County· 48 systems
- Eagle County· 46 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 Pitkin County, Colorado”, https://aquacensus.com/water-systems/colorado/pitkin (data as of October 1, 2026).