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La Plata County, Colorado — public water systems

At a glance

108 active public water systems are filed under La Plata County, Colorado in EPA's SDWIS records, together reporting 62,281 people served. The largest is City of Durango, which reports serving 33,787 people. 54 are community water systems serving people where they live; the other 54 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

108

Population served

62.3K

Community systems

54

Groundwater share

75.9%

How does La Plata County compare with other Colorado counties?

La Plata County has the 4th-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 62,281 people served in total, the 15th-largest county figure in the state and 0.8% of the statewide total. The average system here reports serving 577 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 La Plata County's drinking water come from?

By primary water source, La Plata County's active systems draw on groundwater (71, 66%), purchased surface water (18, 17%), groundwater under influence of surface water (9, 8.3%) and surface water (8, 7.4%). Overall, 76% rely mainly on groundwater (including purchased groundwater) and 24% 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 Durango, draws primarily on surface water.

What kinds of water systems operate in La Plata County?

La Plata County's active systems break down as 54 community systems (50%), 7 non-transient non-community systems (6.5%) and 47 transient non-community systems (44%). 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 (78%), local government (14%), federal government (7.4%) and public/private partnership (0.9%).

The 50 largest water systems in La Plata County

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Active public water systems in La Plata County, Colorado
#Water systemCountyPopulation servedTypeSource
1Durango City ofLa Plata33,787CommunitySurface water
2Animas WcLa Plata3,096CommunityGroundwater
3Bayfield Town ofLa Plata2,300CommunitySurface water
4Forest Lakes MdLa Plata1,699CommunityGroundwater
5Lake Durango WaLa Plata1,577CommunitySurface water
6Purgatory MdLa Plata1,364CommunityGroundwater
7Edgemont Ranch MdLa Plata1,200CommunitySurface water
8Durango West Md No 2La Plata930CommunityPurchased surface water
9Ignacio Town ofLa Plata800CommunityPurchased surface water
10Durango La Plata AirportLa Plata780Non-transient non-communityGroundwater under influence of surface water
11Durango West Md No 1La Plata750CommunityPurchased surface water
12Elbert Creek Water CoLa Plata750CommunitySurface water
13Bar D ChuckwagonLa Plata550Transient non-communityGroundwater
14Purgatory Recreation 1 Powder House RestLa Plata515Transient non-communityGroundwater
15La Plata Archuleta Water DistrictLa Plata510CommunityPurchased surface water
16Colorado Trails RanchLa Plata434Transient non-communityGroundwater
17Durango 9 R Florida Mesa SchoolLa Plata410Non-transient non-communityGroundwater
18El Rancho Florida MdLa Plata400CommunityGroundwater under influence of surface water
19La Plata West Water AuthorityLa Plata354CommunityPurchased surface water
20Southwest Horizon RanchLa Plata323CommunityGroundwater
21Elmore'S Corner 425 PizzaLa Plata312Transient non-communityGroundwater
22Durango'S Cowboy ChurchLa Plata305Transient non-communityGroundwater
23Animas View MHP Co-OpLa Plata292CommunityPurchased surface water
24Needles Country Square LLCLa Plata285Non-transient non-communityGroundwater
25Colvig Silver CampsLa Plata260Transient non-communityGroundwater under influence of surface water
26Homestead TrailsLa Plata258CommunityGroundwater
27Vallecito ResortLa Plata256Transient non-communityGroundwater
28Florida River Estates Hoa Inc.La Plata239CommunityGroundwater under influence of surface water
29Westside MHPLa Plata236CommunityGroundwater
30Claude Decker Subd PipelineLa Plata220Transient non-communityGroundwater
31Roadhouse MarketLa Plata216Transient non-communityGroundwater
32Falls Creek RanchLa Plata215CommunityGroundwater
33Happy Scenes Ws Inc.La Plata209CommunityGroundwater
34Olde Schoolhouse CafeLa Plata202Transient non-communityGroundwater
35Htr Durango CampgroundLa Plata200Transient non-communityGroundwater
36Mountain Man Water ServiceLa Plata200CommunityPurchased surface water
37Durango Regency MHPLa Plata200CommunityGroundwater
38LDS Red MesaLa Plata193Transient non-communityGroundwater
39Durango 9r Sunnyside Elementary SchoolLa Plata192Non-transient non-communityGroundwater
40Blue Sky Ranch Inc. Assoc of OwnersLa Plata180CommunityGroundwater
41Easy Water LLCLa Plata154CommunityPurchased surface water
42Durango North VillageLa Plata150CommunityPurchased groundwater
43Knolls at Durango HoaLa Plata150CommunityGroundwater
44Narrow Gauge MHPLa Plata150CommunityPurchased surface water
45Vallecito Valley SubdLa Plata143Transient non-communityGroundwater
46Island Cove ParkLa Plata143CommunityPurchased surface water
47Blue Spruce Rv ParkLa Plata135Transient non-communityGroundwater
48Mountain River Rv ParkLa Plata126Transient non-communityGroundwater
49Oasis Rv ResortLa Plata120Transient non-communityPurchased surface water
50Apache MHPLa Plata120CommunityPurchased surface water

All other water systems in La Plata County (58)

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

La Plata County water systems: frequently asked questions

How many public water systems are in La Plata County, Colorado?

EPA's SDWIS records file 108 active public water systems under La Plata County, Colorado: 54 community systems (50%), 7 non-transient non-community systems (6.5%) and 47 transient non-community systems (44%).

Who supplies drinking water in La Plata County, CO?

The largest community water systems filed under La Plata County are City of Durango (33,787 people served), Animas Wc (3,096 people served) and Town of Bayfield (2,300 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 La Plata County's drinking water come from groundwater or surface water?

Of the 108 active public water systems in La Plata County, 76% draw mainly on groundwater and 24% on surface water, counting purchased supplies. The largest system, City of Durango, uses surface water.

Where can I find a water quality report for La Plata 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. 54 community systems are filed under La Plata 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 La Plata 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 La Plata County, Colorado”, https://aquacensus.com/water-systems/colorado/la-plata (data as of October 1, 2026).