Retail electricity customers: commercial: Illinois (Units) - United States - EIA - Monthly
This series is part of the dataset: US retail electricity prices (EIA)
Download Full Dataset (.xlsx)Latest updates. In Illinois, the number of retail electricity customers in the commercial sector was 644,596 in July 2026, versus 644,972 in June. This represents a reduction of 0.1 percent.
Sample. In this monthly series, there are 235 records in total. The time span covered by the series stretches from January 2007 to July 2026.
History. Here's a snapshot of a few descriptive statistics we calculated on the whole sample: the customer count reached its lowest level of 510,532 in January 2007; it reached a maximum of 648,402 in December 2025; it had a mean of 606,455.
Latest values
| Date | Value - Units |
|---|---|
| 2026-05-31 | 644,887 |
| 2026-06-30 | 644,972 |
| 2026-07-31 | 644,596 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Retail electricity customer count for the commercial sector in Illinois |
| Country | United States |
| Economic concept | Stock |
| Data type | Quantity |
| Seasonally adjusted | No |
| Deflation method | Current prices |
| Rescaling | None |
| Measure type | Level |
| Frequency | Monthly |
| Unit | Units |
| Source | U.S. Energy Information Administration (EIA) |
| Source type | Government agency |
| Data licence | Public domain |
| Other information | Not available |
| FSR temporal aggregation code | LM1 |
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