Average Utility Costs in Connecticut
Typical monthly utility costs in Connecticut are about $334.81/mo, based on 1,000 kWh of electricity and 5,000 gallons of water (plus sewer and trash where available). Compare Connecticut cities below.
Average Monthly Utility Costs in Connecticut
The average utility bill in Connecticut is estimated at $334.81 per month. Eversource serves Hartford, Waterbury, Stamford. UI serves Bridgeport, New Haven, Norwalk. Trash often tax-funded with no separate fee.
Assumptions: 1,000 kWh/month and 5,000 gallons/month. CT electric rates change Jan & Jul. Compare suppliers at EnergizeCT.com.
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Utility providers in Connecticut
Eversource: Hartford, Waterbury, Stamford. United Illuminating: Bridgeport, New Haven, Norwalk. Water: Aquarion, MDC, RWA, City of Waterbury. Sewer: Various WPCAs, MDC. Connecticut has retail electric choice—compare at EnergizeCT.com.
See provider details, typical residential rates, and source links.
View utility providers in Connecticut →For the full breakdown (electric, water, sewer, trash) by city, use the comparison table below.
Cheapest electric rates in Connecticut
Top 5 cities with the lowest estimated electric bill at 1,000 kWh.
Most expensive total utility monthly cost in Connecticut
Top 5 cities with the highest estimated total (electric + water + sewer + trash).
Compare all cities
Estimated monthly costs by city, sorted by total (highest first). Same assumed usage (1,000 kWh, 5,000 gal) for comparison. 8 cities.
| City | County | Electric | Water | Sewer | Trash | Total | View |
|---|---|---|---|---|---|---|---|
| Hartford | Hartford County | $257.62 | $41.88 | $55.00 | $0.00 | $354.50 | View Hartford details → |
| Bridgeport | Fairfield County | $262.00 | $41.94 | $45.00 | $0.00 | $348.94 | View Bridgeport details → |
| Norwalk | Fairfield County | $262.00 | $41.94 | $45.00 | $0.00 | $348.94 | View Norwalk details → |
| Stamford | Fairfield County | $257.62 | $41.94 | $40.00 | $0.00 | $339.56 | View Stamford details → |
| New Haven | New Haven County | $262.00 | $37.50 | $35.00 | $0.00 | $334.50 | View New Haven details → |
| New Britain | Hartford County | $257.62 | $24.80 | $31.75 | $0.00 | $314.17 | View New Britain details → |
| Waterbury | New Haven County | $257.62 | $21.70 | $31.00 | $0.00 | $310.32 | View Waterbury details → |
| Danbury | Fairfield County | $257.62 | $9.29 | $33.31 | $0.00 | $300.22 | View Danbury details → |
Connecticut counties
View estimated utility costs by county. Each county page lists cities and a comparison table.
Compare with nearby states
Compare utility costs in Connecticut with neighboring states.
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