Average Utility Costs in Round Rock, TX

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

Average monthly utility costs in Round Rock, TX are about $212.94, based on 1,000 kWh of electricity and 5,000 gallons of water. This estimate uses Oncor Electric Delivery delivery territory benchmarking for electric service, plus the city's published local water, wastewater, and trash charges where available.

Round Rock quick take

  • Electric here is modeled as a Texas retail-choice benchmark using Oncor Electric Delivery delivery territory data rather than a fixed city-owned electric tariff.
  • Water and sewer are local line items, and wastewater is a major part of the all-in bill at about $30.96/month in this estimate.
  • Trash adds about $24.69/month in this model, so the full utility bill is driven by much more than electricity alone.
  • Because Texas retail offers change frequently, your actual electric bill can differ from the benchmark even when your water, sewer, and trash charges are close to the city's published rates.

Total estimated monthly utilities

$212.94

Estimated average monthly utilities in Round Rock are ~$212.94 (1,000 kWh + 5,000 gal assumptions). Average water bill estimate: ~$31.06/mo at 5,000 gallons.

Data freshness: last verified 2026-03-20
  • Electric $126.23 (59%)
  • Water $31.06 (15%)
  • Sewer $30.96 (15%)
  • Trash $24.69 (12%)

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

  • In Texas, cooling demand often makes electric the largest share of the bill.
  • City-provided trash is billed at a monthly fee ($24.69 in our estimate).

Water

Confirmed
Provider
City of Round Rock Utility Billing
Base charge
$18.21/mo
Volumetric rate
$2.57/1,000 gal
Assumed usage
5,000 gal
Estimated monthly
$31.06
roundrocktexas.gov· verified 2026-03-20

Sewer

Confirmed
Method
unknown
Estimated monthly
$30.96
roundrocktexas.gov· verified 2026-03-20

Trash

Confirmed
Monthly fee
$24.69

Residential garbage and recycling service is $24.69/month, billed through the city.

roundrocktexas.gov· verified 2026-03-20

Total estimated monthly utilities

$212.94

What changes your bill most?

  • Electric is about 59% of your estimated utilities here.
  • Every 100 kWh changes your total by about $12.20.
  • Water increases by about $2.57 per additional 1,000 gallons.

Why we don't cover internet

Internet service varies widely—many providers, different plans, introductory offers, and bundles make it hard to compare apples to apples. We focus on electric, water, sewer, and trash where rates are more standardized, but we do offer a tool to help you compare internet service providers in your area.

Check available internet service providers in Round Rock →

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 Texas

Texas utility costsWilliamson CountyElectric providers in Texas

FAQ

Round Rock is modeled using Texas retail-choice market pricing, where delivery is handled by the local wires utility and supply is purchased from a Retail Electric Provider. That means the electric number shown here is a comparison benchmark built from local delivery charges plus a representative 1,000 kWh market rate, not a guaranteed contract offer.
Often, yes. Several Texas cities on this site bill residential wastewater using winter-average or capped water-use methods instead of your exact current-month outdoor water use. That makes sewer one of the most important utility-bill quirks to understand when comparing Texas suburbs and growth markets.
In Round Rock, electric is deregulated: you choose a retail electric provider (REP) for supply, while the transmission and distribution utility (TDU) delivers power. Our estimate uses regulated delivery charges plus a typical supply rate so you can compare total utility costs. Your actual supply rate depends on the plan you choose.
Trash in Round Rock 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 Round Rock – Water, Sewer and Garbage Rates (effective Nov. 1, 2025).
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 Round Rock with another city side-by-side, or see how we calculate estimates.