Electricity rates in 62629 — Chatham, IL
Homes in ZIP 62629 pay about 17.9¢ per kWh (Ameren Illinois Company, Jan–Aug 2026). The Illinois average is 19.3¢ and the U.S. average 18.2¢ (Aug 2026).
What a month of electricity costs
Monthly cost at the average price of 17.9¢ per kWh. Real bills add or subtract fixed charges, tiers, time-of-use and fuel adjustments.
Where ZIP 62629 is
Outlined: ZIP code area · scroll or pinch to zoomUtilities serving 62629
| Utility | Home price | Avg. bill | Customers in IL |
|---|---|---|---|
| Ameren Illinois Company Investor Owned | 17.9¢ Jan–Aug 2026 | $130 | 1,060,894 |
| City of Springfield (IL) Municipal · serves Sangamon County | 11.9¢ 2024 | $99 | 59,621 |
| Shelby Electric Coop, Inc. (IL) Cooperative · serves Sangamon County | 18.6¢ 2024 | $193 | 9,871 |
| Menard Electric Coop Cooperative · serves Sangamon County | 18.1¢ 2024 | $178 | 9,048 |
| Village of Chatham (IL) Municipal · serves Sangamon County | 10.8¢ 2024 | $112 | 6,470 |
| Rural Electric Conven Coop (IL) Cooperative · serves Sangamon County | 15.0¢ 2024 | $233 | 5,994 |
| Village of Riverton (IL) Municipal · serves Sangamon County | 19.6¢ 2024 | $191 | 1,726 |
Utilities are matched to this ZIP code by NREL’s ZIP–utility table and the EIA service-territory list for Sangamon County; county matches may serve only part of the area. Prices are each utility’s average residential revenue per kWh.
Illinois price trend
Hover or tap the chart for exact monthly values. Source: EIA-861M (monthly, latest months preliminary); forecast: EIA Short-Term Energy Outlook (October 2026) for the East North Central region, which includes Illinois, Indiana, Michigan, Ohio, Wisconsin.
Averages, not a quote. Prices here are what each utility’s residential customers paid on average (revenue ÷ kWh sold, fixed charges included), as reported to the U.S. Energy Information Administration. Your own rate depends on your plan, season and usage — check your bill or your utility’s tariff.
Questions about 62629
How much does electricity cost in 62629?
About 17.9¢ per kWh for homes (Ameren Illinois Company, Jan–Aug 2026, EIA). At 900 kWh a month that is roughly $161.
Who is the electric utility for 62629?
Ameren Illinois Company, with about 1,060,894 residential customers in Illinois; 6 other utilities also serve parts of the area.
Is electricity in IL getting more expensive?
The Illinois residential average was 19.3¢ per kWh in August 2026, up 7.2% from a year earlier; the U.S. average was 18.2¢.
Can I choose my electricity supplier in IL?
Illinois allows retail electricity choice for many households; the local utility still delivers the power.