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Water providers in Jefferson County, Colorado

44 community water systems serve Jefferson County, Colorado. The largest is City of Arvada, which reports serving 171,610 people.

Who is my water provider?

Type a Colorado address, or use your location. This names the community water systems whose EPA service-area boundary contains that point.

44
community water systems
554,153
people served, summed from the systems' own reports (double-counts wholesale)
10
boundaries EPA modelled rather than traced
6
with no boundary on file

Blue is a boundary a utility or county traced; amber is one EPA modelled from census places. Click an area for the system. Systems with no boundary on file are in the table but not on the map.

Towns in Jefferson County

Each names the systems whose service area covers it.

Every community water system in Jefferson County

SystemServesSourceService areaWater district
City of Arvada 171,610 Surface water traced Clear Creek
Consolidated Mutual Maple Grove 81,400 Surface water traced South Platte Cheesman to Denver Gage
Green Mountain Water & Sanitation District 49,400 Purchased surface water traced South Platte Cheesman to Denver Gage
Bancroft Clover Water & Sanitation District 44,000 Purchased surface water traced South Platte Cheesman to Denver Gage
City of Golden 38,288 Surface water traced Clear Creek
Bear Creek Water & Sanitation District 30,000 Purchased surface water traced Bear Creek
Wheat Ridge Water District 20,000 Purchased surface water traced Clear Creek
Evergreen Metropolitan District 15,750 Surface water traced Bear Creek
Ken Caryl Water & Sanitation District 12,000 Purchased surface water modelled South Platte Cheesman to Denver Gage
Lakehurst Water & Sanitation District 12,000 Purchased surface water traced Bear Creek
North Table Mountain Water & Sanitation District 10,000 Surface water traced Clear Creek
Valley Water District 10,000 Purchased surface water traced Clear Creek
Town of Morrison 9,887 Surface water modelled Bear Creek
Willowbrook Water & Sanitation District 9,348 Purchased surface water traced Bear Creek
City of Lakewood 6,000 Purchased surface water traced South Platte Cheesman to Denver Gage
City of Edgewater 5,300 Purchased surface water modelled South Platte Cheesman to Denver Gage
High View Water District 4,000 Purchased surface water traced South Platte Cheesman to Denver Gage
Genesee Water & Sanitation District 3,920 Surface water traced Bear Creek
Meadowbrook Water District 3,290 Purchased surface water traced South Platte Cheesman to Denver Gage
South Sheridan Water and Sewer Dist 2,500 Purchased surface water none on file —
Alameda Water & Sanitation District 2,480 Purchased surface water traced South Platte Cheesman to Denver Gage
Mountain Water & Sanitation District 1,941 Groundwater under the influence of surface water traced North Fork of South Platte
Ralston Valley Water & Sanitation District 1,610 Purchased surface water traced Clear Creek
Indian Hills Water District 1,300 Groundwater under the influence of surface water traced Bear Creek
Homestead Water Company 1,000 Surface water traced Bear Creek
North Lincoln Water & Sanitation District 1,000 Purchased surface water traced South Platte Cheesman to Denver Gage
Brook Forest Water District 998 Groundwater traced Bear Creek
Mount Vernon Country Club 734 Groundwater under the influence of surface water modelled Bear Creek
Golden Terrace Village 580 Purchased surface water none on file —
Sheridan Mobile Home Park 480 Groundwater none on file —
Mountainside Estates Mobile Home Park 473 Purchased surface water modelled Bear Creek
Forest Hills Md Riva Chase 400 Groundwater modelled Bear Creek
Blue Mountain Water District 350 Groundwater traced South Platte: Denver Gage to Greeley
Bonvue Water and Sanitation District 350 Purchased surface water traced South Platte Cheesman to Denver Gage
Idledale Water & Sanitation District 350 Groundwater under the influence of surface water traced Bear Creek
Elevado Estates LLC 250 Groundwater none on file —
Inspiration Valley Mobile Home Park 250 Groundwater modelled Clear Creek
Majestic Mobile Home Park 232 Purchased surface water none on file —
Hidden Valley Water District 155 Purchased surface water modelled Bear Creek
Ken Caryl West Ranch Water District 140 Groundwater traced Bear Creek
Buffalo Creek Water District 125 Surface water traced North Fork of South Platte
Pleasant View Estates 122 Purchased surface water none on file —
Park Wc Wonderview 90 Groundwater modelled Bear Creek
Cragmont Water Company 50 Surface water modelled Bear Creek

Common questions

How many water providers are in Jefferson County, Colorado?

44 community water systems serve Jefferson County, Colorado. The largest is City of Arvada, which reports serving 171,610 people.

Who is my water provider in Jefferson County?

It depends on your address: 44 community systems serve parts of Jefferson County. Enter an address in the lookup on this page and it will name the systems whose EPA service-area boundary contains that point.

Why is a system in Jefferson County missing from the map?

6 of the 44 systems here have no service-area boundary in EPA's file, so they cannot be drawn. They are still in the table on this page, with their source and compliance record.

Nearby counties

Systems and counties from EPA SDWIS federal reporting, fetched 2026-09-08; boundaries from EPA's Community Water System Service Area Boundaries (v3, 2026). A county row here is the county SDWIS files for the system, which is where it serves customers, not necessarily where its intakes are. Report a problem →