Electricity
Top 11 Electric Providers in Diamond
You pick the provider; ComEd delivers the power.
Every plan below runs over the same ComEd wires, so reliability is identical. Providers compete on rate, contract, and renewable content.
For outages, always call
ComEd at 800-334-7661.
Constellation Energy
Proven Leader in Clean Energy
- Renewable
- —
- Guarantee
- 90 days
- Rate lock
- 3-36 Months
American Power & Gas
Focus on Affordability
- Renewable
- —
- Guarantee
- None
- Rate lock
- 1-6 Months
Green Mountain Energy
100% Renewable Plans
- Renewable
- —
- Guarantee
- 90 days
- Rate lock
- 1-36 Months
Think Energy
Earn Free Electricity Every Month
- Renewable
- —
- Guarantee
- None
- Rate lock
- 12-36 Months
Alpha Gas and Electric
- Renewable
- —
- Guarantee
- —
- Rate lock
- —
AEP Energy
- Renewable
- —
- Guarantee
- —
- Rate lock
- —
NRG Home
Best for Rewards Programs
- Renewable
- —
- Guarantee
- None
- Rate lock
- 3-12 Months
Nordic Energy Services
- Renewable
- —
- Guarantee
- —
- Rate lock
- —
EcoPlus Power
- Renewable
- —
- Guarantee
- —
- Rate lock
- —
MPower Energy
- Renewable
- —
- Guarantee
- —
- Rate lock
- —
- Renewable
- —
- Guarantee
- —
- Rate lock
- —
Rates accurate as of November 6, 2026
EnergySage
Save up to 20%! Get custom solar quotes online, no phone calls required!
- Service
- Home solar
- Quotes
- Free
Plan guides
Compare Plans
How To Switch
Bill Credit Plans
Fixed vs. Variable
Prepaid Plans
Free Nights or Weekends Plan
Renewable Energy
See Top Plans in Your Area
Natural Gas
Top 14 Natural Gas Providers in Diamond
You pick the provider; Nicor Gas delivers the gas.
Every plan below runs through the same Nicor Gas pipes, so delivery reliability is identical. Providers compete on rate, contract, and monthly fees.
For delivery issues, contact
Nicor Gas at 888-642-6748.
Constellation Energy
Trustpilot Rating 4.2/5 ★
- Monthly charge
- —
- Rate lock
- 12-36 Months
- Guarantee
- —
Santanna Energy Services
- Monthly charge
- —
- Rate lock
- 12 Months
- Guarantee
- —
Spark Energy
- Monthly charge
- —
- Rate lock
- 12 Months
- Guarantee
- —
Green Mountain Energy
- Monthly charge
- —
- Rate lock
- 3 Months
- Guarantee
- —
American Power & Gas
- Monthly charge
- —
- Rate lock
- 1-36 Months
- Guarantee
- —
Xoom Energy
- Monthly charge
- —
- Rate lock
- 1-24 Months
- Guarantee
- —
IGS Energy
- Monthly charge
- —
- Rate lock
- —
- Guarantee
- —
- Monthly charge
- —
- Rate lock
- —
- Guarantee
- —
Illinois Energy
- Monthly charge
- —
- Rate lock
- —
- Guarantee
- —
Nordic Energy Services
- Monthly charge
- —
- Rate lock
- —
- Guarantee
- —
Residents Energy
- Monthly charge
- —
- Rate lock
- —
- Guarantee
- —
- Monthly charge
- —
- Rate lock
- —
- Guarantee
- —
From
$0.550
/THM
Check Availability
IDT Energy
- Monthly charge
- —
- Rate lock
- —
- Guarantee
- —
- Monthly charge
- —
- Rate lock
- —
- Guarantee
- —
Rates accurate as of November 6, 2026
See Top Plans In Your Area
Smell rotten eggs?
Leave immediately, and don't touch light switches, garage openers, or phones. Once you're safely away,
call
Nicor Gas at 888-642-6748 or 911.
What to do if you smell gas
Internet
Top 8 Internet Providers in Diamond
Xfinity
Lock in Your Price for 5 Years
- Speeds up to
- 2 Gbps
- Type
- Cable & Fiber
- Data cap
- Unlimited
- Availability
- 99.61%
Starlink
Internet Anywhere You Are
- Speeds up to
- 400 Mbps
- Type
- Satellite
- Data cap
- Unlimited
- Availability
- 100%
Verizon 5G Home Internet
Wireless Internet Great for Renters
- Speeds up to
- 300 Mbps
- Type
- 5G
- Data cap
- Unlimited
- Availability
- 100%
T-Mobile 5G Home Internet
Wireless Internet
- Speeds up to
- 498 Mbps
- Type
- 5G
- Data cap
- 1.2 TB
- Availability
- 100%
AT&T Air
Wireless Internet
- Speeds up to
- 300 Mbps
- Type
- 5G
- Data cap
- Unlimited
- Availability
- 100%
- Speeds up to
- 150 Mbps
- Type
- Satellite
- Data cap
- 150-850 GB
- Availability
- 100%
- Speeds up to
- Varies
- Type
- Fiber, Cable, 5G, & Satellite
- Data cap
- Varies
- Availability
- 95%
From
$39.95
/mo
Call 866-452-1131
AT&T Fiber
Get a $200 Reward Card*
- Speeds up to
- 5 Gbps
- Type
- Fiber
- Data cap
- Unlimited
- Availability
- 12.49%
*Not all internet providers and speeds are available at every address.
Diamond Connectivity
Broadband (100/20 Mbps)
99.6%
1 Gig download
72.1%
Fiber
72.1%
Share of residents with access. Source:
FCC National Broadband Map.
Water & Sewer
Water & Sewage Providers in Diamond
D
DIAMOND
1750 E DIVISION ST. DIAMOND, IL 60416
- Service
- Water & sewage
- Contact
- Online & Phone
Diamond drinking water quality: 1 contaminant above health guidelines, none above legal limits
Levels are averages of EPA SDWA LCR and UCMR 3–5 samples. Health guidelines come from the EPA, WHO, or state health departments; legal limits are EPA regulations.
Contaminant
Diamond
Health guideline
Legal limit
Lead Above guideline
1.2 ppb
0 ppb
15 ppb
We strive to offer the most accurate information possible. If you notice inaccurate or missing information please let us know and we will get it corrected as quickly as possible.
Report Missing or Inaccurate Data
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Utilities in Nearby Cities
Frequently Asked Questions
Can I choose my electric company in Diamond?
Yes, the state of Illinois has deregulated electric utilities. Deregulation allows for multiple electric providers within each city and lets customers choose or switch to a provider or plan best fits their needs. Assuming your area has started allowing retail electric competition, you can choose between Constellation Energy and American Power & Gas or any of the 11 electric providers available in Diamond.
Can I choose my natural gas utility provider in Diamond, IL?
Yes, the state of Illinois has deregulated its natural gas utilities. Deregulation of gas service allows for multiple providers and allows customers to choose between providers and plans that best fit their needs. Assuming your area has started enabling retail gas competition, you can choose between Constellation Energy and Santanna Energy Services or any of the other natural gas providers that offer service in Diamond.
Does Diamond offer municipal electricity services?
No, Diamond does not provide municipal electric service to it's residents. However, it is likely that there are essential municipal services offered to the Diamond area, like providing safe and clean water, handling sewage treatment and wastewater disposal by Diamond.
Who is the fastest internet provider in Diamond?
Xfinity is the fastest internet service provider in Diamond, offering speeds up to 2 Gbps to 99.61% of the city.
Who is the cheapest electricity supplier in Diamond?
MPower Energy is the cheapest electric provider in Diamond, offering plans starting at $0.00179 /kWh.
Who is the cheapest natural gas supplier in Diamond?
Nordic Energy Services is the cheapest natural gas provider in Diamond, offering plans starting at $0.295 /therm.