Average Utility Costs in Boulder, CO

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

Average monthly utility costs in Boulder, CO are about $256.76, 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

$256.76

Estimated average monthly utilities in Boulder are ~$256.76 (1,000 kWh + 5,000 gal assumptions). Average water bill estimate: ~$49.76/mo at 5,000 gallons.

Data freshness: last verified 2026-02-02
  • Electric $142.00 (55%)
  • Water $49.76 (19%)
  • Sewer $61.50 (24%)
  • Trash $3.50 (1%)

Utilities here are about 15% higher than the Colorado city average, driven mainly by electric rates.

  • In Colorado, heating and cooling often makes electric the largest share of the bill.
  • City-provided trash is billed at a monthly fee ($3.50 in our estimate).

Water

Confirmed
Provider
City of Boulder Utilities
Base charge
$21.51/mo
Volumetric rate
$5.65/1,000 gal
Assumed usage
5,000 gal
Estimated monthly
$49.76
bouldercolorado.gov· verified 2026-02-02

Sewer

Confirmed
Method
tiered
Estimated monthly
$61.50

Wastewater: 3/4" service $17.20/mo inside city; quantity $8.86/1,000 gal. Residential billed on actual use or AWC (Dec–Mar average), whichever is less. Shown estimate at 5,000 gal.

bouldercolorado.gov· verified 2026-02-02

Trash

Confirmed
Monthly fee
$3.50

$3.50/month trash tax for households (voter-approved; haulers pass it on). Actual hauler fees vary by provider and cart size; estimate reflects city tax only, not full service.

bouldercolorado.gov· verified 2026-02-02

Total estimated monthly utilities

$256.76

What changes your bill most?

  • Electric is about 55% of your estimated utilities here.
  • Every 100 kWh changes your total by about $13.00.
  • Water increases by about $5.65 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 Colorado

Colorado utility costsBoulder CountyElectric providers in Colorado

FAQ

In Boulder, sewer is billed in tiers based on usage, so the rate per gallon changes with volume. Our estimate uses the rate structure from City of Boulder – Monthly Water User Charges (Wastewater) at the assumed 5,000 gallons per month. Your bill will vary with actual usage.
Trash in Boulder is provided by the city as part of municipal utilities and is billed at a monthly fee. Rates and services are set by the local government; our estimate uses the fee from City of Boulder – Trash Tax.
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 either a flat fee or a percentage of water. Trash is a fixed monthly fee. See the Methodology page for full formulas.
Actual bills depend on your usage, seasonal rates, taxes, fees, and provider-specific rules. Our estimates use fixed assumed usage (e.g., 1,000 kWh, 5,000 gal) for comparison. Your home may use more or less.
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 Boulder with another city side-by-side, or see how we calculate estimates.