Average Utility Costs in Rock Springs, WY

Estimated monthly utility costs (1,000 kWh + 5,000 gal)

Average monthly utility costs in Rock Springs, WY are about $235.30, based on 1,000 kWh of electricity and 5,000 gallons of water, plus sewer and trash fees. See the full breakdown and sources below.

Total estimated monthly utilities

$235.30

Estimated average monthly utilities in Rock Springs are ~$235.30 (1,000 kWh + 5,000 gal assumptions). Average water bill estimate: ~$29.78/mo at 5,000 gallons.

Data freshness: last verified 2026-02-25
  • Electric $146.00 (62%)
  • Water $29.78 (13%)
  • Sewer $34.52 (15%)
  • Trash $25.00 (11%)

Utilities here are about 5% lower than the Wyoming city average, driven mainly by water.

  • In Wyoming, heating and cooling often makes electric the largest share of the bill.
  • Trash is provided by private haulers; residents choose their own. Our estimate reflects typical rates for the area—contact haulers for exact pricing.

Water

Confirmed
Provider
Rock Springs Municipal Utility
Base charge
$10.78/mo
Volumetric rate
$3.80/1,000 gal
Assumed usage
5,000 gal
Monthly total
$29.78
cms3.revize.com· verified 2026-02-25

Sewer

Confirmed
Method
tiered
Monthly total
$34.52

Tiered structure simplified to a representative monthly estimate at assumed usage.

cms3.revize.com· verified 2026-02-25

Trash

Estimated
Monthly fee
$25.00

City solid waste. Typical residential. Confirm at rswy.net.

rswy.net· verified 2026-02-25

Total estimated monthly utilities

$235.30

What changes your bill most?

  • Electric is about 62% of your estimated utilities here.
  • Every 100 kWh changes your total by about $12.30.
  • Water increases by about $3.80 per additional 1,000 gallons.

Assumptions

  • Electric: 1000 kWh/month
  • Water: 5,000 gallons/month

What these labels mean

  • Confirmed — From this area's rate schedule.
  • Benchmark — From an official typical (e.g. state commission 1,000 kWh); not city-specific.
  • Delivery only — Regulated delivery charges only (e.g. Texas); supply varies by plan.
  • Estimated — From other or incomplete sources; use as a rough guide.
Sources

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More in Wyoming

Wyoming utility costsSweetwater CountyUtility providers in Wyoming

FAQ

In Rock Springs, sewer is billed in tiers based on usage, so the rate per gallon changes with volume. Our estimate uses the rate structure from Rock Springs Municipal Utility – Water and Sewer Rates (eff. 7/1/2022) at the assumed 5,000 gallons per month. Your bill will vary with actual usage.
We use base charges and per-unit rates from official provider pages. Electric = base + (rate × assumed kWh). Water = base + (rate per 1,000 gal × assumed gallons / 1,000). Sewer is often based on winter quarter average (AWC), not current usage. Trash is a fixed monthly fee. See the Methodology page for full formulas.
Actual bills depend on usage, seasonal rates, and provider. Some Casper addresses are served by High Plains Power (co-op) instead of Rocky Mountain Power. Sewer is often based on winter quarter average. Wyoming has no retail electric choice.
Each component shows a 'last verified' date. We aim to update from official sources periodically; always confirm current rates on the provider's site before making decisions.

Learn more

For tips on understanding your bill, comparing cities, and how electric and utility rates work by state, see our blog. Compare Rock Springs with another city side-by-side, or see how we calculate estimates.