Early access · Rate data is actively expanding · Verify current rates with your utility
whatwatercosts.org

Have a more current rate document? Submit the URL and we'll update our data.

How we calculated this

Read by an AI agent (a large language model) from the utility's official rate schedule, then audited by a second model against the same schedule. This bill uses inside-city rates; customers outside the city pay different rates.

Extracted by: Audit · Claude Opus 5.5 · 10/13/2026
Source: 
Monthly minimum charge for a 5/8" meter (no water included): $11.80
Usage: 6,000 gal at $6.40 per 1,000 gal = $38.40
Centralized water softening fee: $3.88
Total: $54.08/mo
About our methodology ↗

Leaving whatwatercosts.org

You're about to open the source document we used to extract this utility's rate data.

Open ↗
← Back

Utility profile · CO

SOUTH ADAMS COUNTY WSD Water Rates

SOUTH ADAMS COUNTY WSD supplies water to about 76,000 people in Commerce City and Derby, Colorado. A typical household using 6,000 gallons a month pays an estimated $54.08 in the main service area, 7% below the national average.

Rates effective 2026-01-01

Updated Oct 2026

How much does water cost provided by SOUTH ADAMS COUNTY WSD?

Monthly Rate

$54.08 / month

$50.20 water + $3.88 required fees ⓘ

Read and audited by AI against the official rate schedule ·

This bill uses inside-city rates; customers outside the city pay different rates.

How the bill adds up

Minimum charge
includes some water
 $11.80
Water used
6,000 gal × $6.4/kgal
 $38.40
Required fees and surcharges $3.88
Total $54.08

How does SOUTH ADAMS COUNTY WSD's water cost compare to its regional neighbors?

Monthly cost (6k gal) vs up to 10 nearest utilities with published rates. Click to navigate.

WESTMINSTER CITY OF
$40.54
WESTMINSTER CITY OF
WESTMINSTER, CO · $40.54/mo · 14mi
FEDERAL HEIGHTS CITY OF
$51.68
FEDERAL HEIGHTS CITY OF
FEDERAL HEIGHTS, CO · $51.68/mo · 12mi
AURORA CITY OF
$51.99
AURORA CITY OF
AURORA, CO · $51.99/mo · 14mi
SOUTH ADAMS COUNTY WSD
$54.08
SOUTH ADAMS COUNTY WSD
COMMERCE CITY · $54.08/mo
BRIGHTON CITY OF
$56.26
BRIGHTON CITY OF
BRIGHTON, CO · $56.26/mo · 6mi
THORNTON CITY OF
$57.53
THORNTON CITY OF
THORNTON, CO · $57.53/mo · 8mi
LOCHBUIE TOWN OF
$62.94
LOCHBUIE TOWN OF
LOCHBUIE, CO · $62.94/mo · 8mi
FT LUPTON CITY OF
$64.53
FT LUPTON CITY OF
FORT LUPTON, CO · $64.53/mo · 14mi
NORTH WASHINGTON STREET WSD
$65.25
NORTH WASHINGTON STREET WSD
DENVER, CO · $65.25/mo · 10mi
CRESTVIEW WSD
$66.30
CRESTVIEW WSD
DENVER, CO · $66.30/mo · 13mi
TODD CREEK VILLAGE MD
$111.74
TODD CREEK VILLAGE MD
BRIGHTON, CO · $111.74/mo · 7mi

Where does SOUTH ADAMS COUNTY WSD provide service?

Population served and the municipalities covered by this utility's service area.

Boundaries from the EPA Water System Service Areas dataset. Not all utilities have mapped boundaries.

Population Served

75,559

Municipalities served

Commerce City Derby

Where does SOUTH ADAMS COUNTY WSD's water come from?

Supply and provider classification from EPA records.

Primary Source
SWP
Provider Type
Local Govt
PWSID
CO0101140

Named intake/well source and interconnections (who this utility buys from or sells to) aren't captured yet — tracked separately for a future update.

Is water affordable for SOUTH ADAMS COUNTY WSD's customers?

Annual bill as a share of median household income in the service area.

Water Burden

0.7% of income (annual)
of median area income · affordability threshold: 2%

We don't yet systematically track whether a utility offers income-based or sliding-scale pricing separate from its standard rates — tracked separately for a future update.

Where did this data come from?

This rate was extracted from SOUTH ADAMS COUNTY WSD's published tariff document by an AI research agent, then checked against a validation checklist before publishing. See the full methodology for how every utility on this site is sourced and scored.

Provenance

Extracted by: Audit · Claude Opus 5.5 · 10/13/2026
Confidence label: Model verified

Spot an error, or have a newer rate schedule?