Skip to content
AquaCensus

Lake County, Colorado — public water systems

At a glance

19 active public water systems are filed under Lake County, Colorado in EPA's SDWIS records, together reporting 11,697 people served. The largest is Parkville Wd, which reports serving 7,500 people. 5 are community water systems serving people where they live; the other 14 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

19

Population served

11.7K

Community systems

5

Groundwater share

84.2%

How does Lake County compare with other Colorado counties?

Lake County has the 32nd-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 11,697 people served in total, the 40th-largest county figure in the state and 0.2% of the statewide total. The average system here reports serving 616 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 Lake County's drinking water come from?

By primary water source, Lake County's active systems draw on groundwater (15, 79%), surface water (3, 16%) and groundwater under influence of surface water (1, 5.3%). Overall, 84% rely mainly on groundwater (including purchased groundwater) and 16% 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, Parkville Wd, draws primarily on surface water.

What kinds of water systems operate in Lake County?

Lake County's active systems break down as 5 community systems (26%), 1 non-transient non-community systems (5.3%) and 13 transient non-community systems (68%). 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 (68%), federal government (26%) and local government (5.3%).

Water systems in Lake County

🔒 Create a free account to export CSV
Active public water systems in Lake County, Colorado
#Water systemCountyPopulation servedTypeSource
1Parkville WdLake7,500CommunitySurface water
2Ski CooperLake973Transient non-communityGroundwater under influence of surface water
3Climax Climax MineLake615Non-transient non-communitySurface water
4White Star Host SiteLake528Transient non-communityGroundwater
5Lake Fork MHPLake487CommunityGroundwater
6Sugar Loafin Rv CampgroundLake201Transient non-communityGroundwater
7Mountain Valley EstatesLake200CommunityGroundwater
8May Queen CgLake176Transient non-communityGroundwater
9Mt Elbert WaLake170CommunityGroundwater
10Elbert Creek CgLake128Transient non-communityGroundwater
11Half Moon East CgLake128Transient non-communityGroundwater
12Twin Lakes InnLake104Transient non-communityGroundwater
13Mt Massive Golf CourseLake104Transient non-communityGroundwater
14High Mountain InstituteLake84Transient non-communityGroundwater
15Colorado Outward Bound SchoolLake81Transient non-communityGroundwater
16Grand West Village ResortLake78Transient non-communityGroundwater
17Half Moon West CgLake63Transient non-communityGroundwater
18Moose Haven CondosLake48CommunityGroundwater
19Mt Elbert LodgeLake29Transient non-communitySurface water

Lake County water systems: frequently asked questions

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

EPA's SDWIS records file 19 active public water systems under Lake County, Colorado: 5 community systems (26%), 1 non-transient non-community systems (5.3%) and 13 transient non-community systems (68%).

Who supplies drinking water in Lake County, CO?

The largest community water systems filed under Lake County are Parkville Wd (7,500 people served), Lake Fork MHP (487 people served) and Mountain Valley Estates (200 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 Lake County's drinking water come from groundwater or surface water?

Of the 19 active public water systems in Lake County, 84% draw mainly on groundwater and 16% on surface water, counting purchased supplies. The largest system, Parkville Wd, uses surface water.

Where can I find a water quality report for Lake 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. 5 community systems are filed under Lake 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 Lake 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 Lake County, Colorado”, https://aquacensus.com/water-systems/colorado/lake (data as of October 1, 2026).