Average Utility Costs in Sun Prairie, WI

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

Average monthly utility costs in Sun Prairie, WI are about $276.06, 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

$276.06

Estimated average monthly utilities in Sun Prairie are ~$276.06 (1,000 kWh + 5,000 gal assumptions). Average water bill estimate: ~$37.68/mo at 5,000 gallons.

Data freshness: last verified 2026-06-06
  • Electric $199.12 (72%)
  • Water $37.68 (14%)
  • Sewer $39.26 (14%)
  • Trash $0.00 (0%)

Utilities here are about 5% higher than the Wisconsin city average, driven mainly by electric rates.

  • In Wisconsin, heating and cooling often makes electric the largest share of the bill.

Water

Confirmed
Provider
Sun Prairie Utilities
Base charge
$37.68/mo
Volumetric rate
$0.00/1,000 gal
Assumed usage
5,000 gal
Monthly total
$37.68
sunprairieutilities.com· verified 2026-06-06

Sewer

Confirmed
Method
tiered
Monthly total
$39.26

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

cityofsunprairie.com· verified 2026-06-06

Trash

Confirmed
Monthly fee
$0.00

Weekly Pellitteri curbside for 1–4 unit dwellings; refuse/recycling costs appear as a special charge on the annual property tax bill—not a monthly utility line.

wi-sunprairie.civicplus.com· verified 2026-06-06

Check Internet pricing & availability in Sun Prairie

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

$276.06

What changes your bill most?

  • Electric is about 72% of your estimated utilities here.
  • Every 100 kWh changes your total by about $18.43.
  • Each additional 1,000 gallons of water adds about $5.22 to your water and sewer bills combined (water ~$0.00 + wastewater ~$5.22).

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

Wondering if solar makes sense for you? Try our solar payback calculator to find out.

Nearby Cities Utility Costs

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

CityEst. total/mo
Sun Prairie (this)$276.06
Madison$287.56

More in Wisconsin

Wisconsin utility costsUtility providers in Wisconsin

FAQ

In Sun Prairie, 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 Sun Prairie – Sewer Rates (2025 minimum + volume) 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 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 Sun Prairie with another city side-by-side, or see how we calculate estimates.