Average Utility Costs in Greenwich, CT

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

Average monthly utility costs in Greenwich, CT are about $362.56, 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

$362.56

Estimated average monthly utilities in Greenwich are ~$362.56 (1,000 kWh + 5,000 gal assumptions). Average water bill estimate: ~$41.94/mo at 5,000 gallons.

Data freshness: last verified 2026-05-24
  • Electric $257.62 (71%)
  • Water $41.94 (12%)
  • Sewer $28.00 (8%)
  • Trash $35.00 (10%)

Utilities here are about 5% higher than the Connecticut city average, driven mainly by trash.

  • In Connecticut, 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
Aquarion Water Company
Base charge
$12.89/mo
Volumetric rate
$5.81/1,000 gal
Assumed usage
5,000 gal
Monthly total
$41.94
aquarionwater.com· verified 2026-05-24

Sewer

Estimated
Method
flat
Monthly total
$28.00
greenwichct.gov· verified 2026-05-24

Trash

Estimated
Monthly fee
$35.00

Greenwich does not provide municipal curbside trash. Residents hire a licensed private hauler or self-haul to Holly Hill Resource Recovery Facility (residential MSW drop-off $0 with permit). Estimate reflects typical Fairfield County hauler subscription; contact licensed collectors for quotes.

greenwichct.gov· verified 2026-05-24

Check Internet pricing & availability in Greenwich

Internet service varies widely—many providers, different plans, introductory offers, and bundles make it hard to compare apples to apples. That's why we don't estimate internet on this page like we do for electric, water, sewer, and trash. Use our tool to compare providers for your address or ZIP code.

Total estimated monthly utilities

$362.56

What changes your bill most?

  • Electric is about 71% of your estimated utilities here.
  • Every 100 kWh changes your total by about $24.80.
  • Water increases by about $5.81 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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Nearby Cities Utility Costs

Other cities in Fairfield County. Click a city for full breakdowns.

CityEst. total/mo
Greenwich (this)$362.56
Bridgeport$348.94
Stamford$339.56
Norwalk$348.94
Danbury$300.22
Fairfield$373.56

More in Connecticut

Connecticut utility costsFairfield CountyUtility providers in Connecticut

FAQ

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 based on water use. Trash is a fixed monthly fee (or $0 when tax-funded). See the Methodology page for full formulas.
Actual bills depend on usage, seasonal electric rates (CT rates change Jan & Jul), taxes, fees, and provider rules. Connecticut has retail electric choice—compare third-party suppliers at EnergizeCT.com. Trash is often tax-funded with no separate fee.
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 Greenwich with another city side-by-side, or see how we calculate estimates.