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Gunnison County, Colorado — public water systems

At a glance

71 active public water systems are filed under Gunnison County, Colorado in EPA's SDWIS records, together reporting 27,176 people served. The largest is City of Gunnison, which reports serving 9,610 people. 20 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

71

Population served

27.2K

Community systems

20

Groundwater share

90.1%

How does Gunnison County compare with other Colorado counties?

Gunnison County has the 12th-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 27,176 people served in total, the 26th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 383 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 Gunnison County's drinking water come from?

By primary water source, Gunnison County's active systems draw on groundwater (57, 80%), groundwater under influence of surface water (7, 9.9%), surface water (6, 8.5%) and purchased surface water (1, 1.4%). Overall, 90% rely mainly on groundwater (including purchased groundwater) and 9.9% 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 Gunnison, draws primarily on groundwater.

What kinds of water systems operate in Gunnison County?

Gunnison County's active systems break down as 20 community systems (28%), 2 non-transient non-community systems (2.8%) and 49 transient non-community systems (69%). 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 (69%), federal government (21%) and local government (9.9%).

The 50 largest water systems in Gunnison County

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Active public water systems in Gunnison County, Colorado
#Water systemCountyPopulation servedTypeSource
1Gunnison City ofGunnison9,610CommunityGroundwater
2Mount Crested Butte WsdGunnison3,296CommunitySurface water
3Crested Butte Town ofGunnison2,440CommunitySurface water
4Crested Butte SouthGunnison2,000CommunityGroundwater
5Cbmr Paradise Warming HouseGunnison1,530Transient non-communityGroundwater
6Gunnison County WsdGunnison800CommunitySurface water
7Evergreen Lake CompanyGunnison431CommunitySurface water
8Riverland Lot Owners AssocGunnison368CommunityGroundwater
9Skyland MdGunnison335CommunityGroundwater
10Cbmr Uleys Warming HouseGunnison300Transient non-communityGroundwater under influence of surface water
11Mountain Coal Co LLC West Elk MineGunnison300Non-transient non-communitySurface water
12Three Rivers ResortGunnison293Transient non-communityGroundwater
13Antelope Hills AssocGunnison265CommunityPurchased surface water
14Taylor Park Trading PostGunnison258Transient non-communityGroundwater
15Meridian Lake ParkGunnison250CommunitySurface water
16Rocky Mountain Biological LaboratoryGunnison216Transient non-communityGroundwater
17Curecanti Nra Elk CreekGunnison206Non-transient non-communityGroundwater
18Buckhorn Ranch WsGunnison205CommunityGroundwater under influence of surface water
19Harmels Ranch ResortGunnison198Transient non-communityGroundwater under influence of surface water
20Lake View CgGunnison193Transient non-communityGroundwater
21Tomichi Village InnGunnison166Transient non-communityGroundwater
22Sky Ranch at Ute TrailGunnison166Transient non-communityGroundwater
23Lottis Creek CgGunnison155Transient non-communityGroundwater
24Ragged Mountain CampGunnison152Transient non-communityGroundwater under influence of surface water
25Treasure Mountain Bible CampGunnison125Transient non-communityGroundwater
26Mesa Rv ResortGunnison122Transient non-communityGroundwater
27Larkspur SubdGunnison118CommunityGroundwater
28Almont ResortGunnison116Transient non-communityGroundwater
29High Park Spring LLC SonriseGunnison114Transient non-communityGroundwater
30Marble WcGunnison113CommunityGroundwater
31Ski Town VillageGunnison113CommunityGroundwater under influence of surface water
32Curecanti Nra Stevens CreekGunnison107Transient non-communityGroundwater
33Curecanti Nra Lake Fork RaGunnison100Transient non-communityGroundwater
34Bogan CampgroundGunnison100Transient non-communityGroundwater
35Somerset Domestic WdGunnison100CommunityGroundwater under influence of surface water
36Ponderosa Park AssocGunnison100CommunityGroundwater
37Silver Jack CgGunnison92Transient non-communityGroundwater
38Holts Guest RanchGunnison89Transient non-communityGroundwater
39One Mile CgGunnison86Transient non-communityGroundwater
40North Valley Subdivision Utility CompanyGunnison79CommunityGroundwater
41Blue Mesa OutpostGunnison76Transient non-communityGroundwater
42Lost Lake CgGunnison70Transient non-communityGroundwater
43Bear Ranch LLCGunnison67Transient non-communityGroundwater
44Oasis Gunnison LakesideGunnison65Transient non-communityGroundwater
45Dinner Station CgGunnison62Transient non-communityGroundwater
46Silver Plume General Store theGunnison62Transient non-communityGroundwater
47Saddle Ridge Ranch Estates WcGunnison55CommunityGroundwater under influence of surface water
48Rosy Lane CgGunnison55Transient non-communityGroundwater
49Camp Gunnison Inc.Gunnison55Transient non-communityGroundwater
50Garlic MikesGunnison50Transient non-communityGroundwater

All other water systems in Gunnison County (21)

The remaining active systems filed under Gunnison County, largest first, with the population each reports serving.

Gunnison County water systems: frequently asked questions

How many public water systems are in Gunnison County, Colorado?

EPA's SDWIS records file 71 active public water systems under Gunnison County, Colorado: 20 community systems (28%), 2 non-transient non-community systems (2.8%) and 49 transient non-community systems (69%).

Who supplies drinking water in Gunnison County, CO?

The largest community water systems filed under Gunnison County are City of Gunnison (9,610 people served), Mount Crested Butte Wsd (3,296 people served) and Town of Crested Butte (2,440 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 Gunnison County's drinking water come from groundwater or surface water?

Of the 71 active public water systems in Gunnison County, 90% draw mainly on groundwater and 9.9% on surface water, counting purchased supplies. The largest system, City of Gunnison, uses groundwater.

Where can I find a water quality report for Gunnison 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. 20 community systems are filed under Gunnison 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 Gunnison 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

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 Gunnison County, Colorado”, https://aquacensus.com/water-systems/colorado/gunnison (data as of October 1, 2026).