Average Utility Costs in Decatur, IL

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

Average monthly utility costs in Decatur, IL are about $247.68, 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

$247.68

Estimated average monthly utilities in Decatur are ~$247.68 (1,000 kWh + 5,000 gal assumptions). Average water bill estimate: ~$44.69/mo at 5,000 gallons.

Data freshness: last verified 2026-03-17

Electric includes approximate delivery (ComEd Rate RDS).

  • Electric $140.81 (57%)
  • Water $44.69 (18%)
  • Sewer $33.25 (13%)
  • Trash $28.93 (12%)

Utilities here are in line with the Illinois city average.

  • In Illinois, 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.

Electric

Confirmed
Provider
Ameren Illinois
Base charge
$0.00/mo
Energy rate
$0.0858/kWh
Assumed usage
1000 kWh
Supply + trans. only
$85.85

Delivery (approximate)

At 1,000 kWh: $14.04 customer charge + 3.97¢/kWh distribution + 0.13¢/kWh IEDT ≈ $54.96/mo.

Approx. full electric (supply+trans+delivery): $140.81/mo

Meter $5.32 + Customer $8.72. Distribution 4.376¢ (0–800 kWh), 2.324¢ (>800) non-summer. At 1,000 kWh total ~$141 (supply + delivery).

CUB – Ameren Illinois Delivery Rates (Jan 2025) (verified 2026-03-17). Rate RDS (Retail Delivery Service)

plugin.illinois.gov· verified 2026-03-17

IL allows supplier choice. Ameren delivers; Price to Compare is default supply.

Water

Confirmed
Provider
City of Decatur Water Division
Base charge
$15.69/mo
Volumetric rate
$5.80/1,000 gal
Assumed usage
5,000 gal
Estimated monthly
$44.69
decaturil.gov· verified 2026-03-17

Sewer

Confirmed
Method
tiered
Estimated monthly
$33.25

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

decaturil.gov· verified 2026-03-17

Trash

Confirmed
Monthly fee
$28.93

Basic service (one cart) $28.93/mo ($57.86 bi-monthly). Expanded (two carts) $40.83/mo. Approved by City Council April 2024. Includes trash and recycling.

wandtv.com· verified 2026-03-17

Total estimated monthly utilities

$247.68

What changes your bill most?

  • Electric is about 57% of your estimated utilities here.
  • Every 100 kWh changes your total by about $8.58.
  • Water increases by about $5.80 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 Decatur →

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.

More in Illinois

Illinois utility costsMacon CountyUtility providers in Illinois

FAQ

In Decatur, 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 Decatur – 2026 Utility Rates (water, sewer, storm drain) 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 Decatur with another city side-by-side, or see how we calculate estimates.