Electric companies in St. Clair County, Illinois
St. Clair County, IL ranks 2 of 102 Illinois counties for ice storm risk, FEMA score 91.0. St. Clair County in Illinois has 254,777 residents and 4 utilities listed by EIA.
Households in St. Clair County can pick a supplier. How to compare.
St. Clair County on the map
St. Clair County darker: more storm events
Electric utilities in St. Clair County
| Utility listed for St. Clair County, IL | Type | Home accounts in Illinois |
|---|---|---|
| Ameren Illinois Company in St. Clair County, IL | Investor Owned | 1,060,894 |
| Southwestern Electric Coop Inc in St. Clair County, IL | Cooperative | 24,822 |
| Egyptian Electric Coop Assn in St. Clair County, IL | Cooperative | 13,707 |
| Tri-County Electric Coop, Inc (IL) in St. Clair County, IL | Cooperative | 16,197 |
Plans from retail suppliers are not in public data, so no plan prices are shown. The listed utilities deliver the power, and which one serves your street depends on the address.
Outage risk in St. Clair County
St. Clair County, IL, NWS storm events 2015 to 2025: 146 in all, 57.3 per 100,000 residents of 254,777, rank 24 of 102 Illinois counties. Property damage in St. Clair County, IL: $1.1M, with 5 direct injuries or deaths.
Events by year in St. Clair County, IL
events a year, St. Clair County, IL
- 10'15
- 13'16
- 13'17
- 9'18
- 12'19
- 6'20
- 10'21
- 11'22
- 27'23
- 5'24
- 30'25
Events by type
| St. Clair County, IL | FEMA | Score | Rank | Events | Peak | Damage |
|---|---|---|---|---|---|---|
| St. Clair County, IL, thunderstorm and high wind | Relatively Moderate | 54.0 | 76 of 102 | 105 | 2025 (21) | $644K |
| St. Clair County, IL, tornado | Relatively High | 95.5 | 11 of 102 | 14 | 2025 (5) | $460K |
| St. Clair County, IL, hurricane and tropical storm | Very Low | 34.9 | 30 of 102 | 0 | none | $0 |
| St. Clair County, IL, ice storm | Relatively High | 91.0 | 2 of 102 | 1 | 2017 (1) | $0 |
| St. Clair County, IL, winter storm and heavy snow | Relatively High | 87.2 | 11 of 102 | 10 | 2015 (2) | $0 |
| St. Clair County, IL, heat wave | Relatively High | 98.1 | 2 of 102 | 16 | 2016 (4) | $0 |
ZIP codes in St. Clair County
- 62059
- 62201
- 62203
- 62204
- 62205
- 62206
- 62207
- 62208
- 62220
- 62221
- 62223
- 62225
- 62226
- 62232
- 62239
- 62240
- 62243
- 62254
- 62255
- 62257
- 62258
- 62260
- 62264
- 62269
- 62282
- 62285
- 62289
- 62293
Facts about St. Clair County
- Residents of St. Clair County, IL, ACS 2023
- 254,7779 of 102 Illinois counties
- Households in St. Clair County, IL
- 101,2732.52 people each
- Owner-occupied homes in St. Clair County, IL
- 67.8%68,653 owner and 32,620 renter households
- Median household income in St. Clair County, IL
- $70,17835 of 102 Illinois counties
- Housing units in St. Clair County, IL
- 115,34814,075 vacant or seasonal, 12.2% of the units
- Homes heated by electricity in St. Clair County, IL
- 33.4%33,850 homes, 19 of 102 Illinois counties
- Utilities listed for St. Clair County, IL
- 44 with a home price: Ameren Illinois Company, Southwestern Electric Coop Inc, Egyptian Electric Coop Assn
- ZIP areas touching St. Clair County, IL
- 2862059 to 62293
- Outage-linked storm events in St. Clair County, IL
- 146NWS storm events, 2015 to 2025
- Homes built before 1980 in St. Clair County, IL
- 55.3%median year built 1975
- Flood claims in St. Clair County, IL
- 342NFIP 2015 to 2025, $4.0M paid
- Home energy burden in St. Clair County, IL
- 3.0%$1,700 a year on electricity (DOE LEAD)
Housing and heating in St. Clair County
St. Clair County, IL: 63,832 of 115,348 homes were built before 1980 and 24,656 in 2000 or later. St. Clair County, IL has 82,309 detached houses, 13,110 homes in 5+ unit buildings, 5,320 mobile homes, and 32,620 of 101,273 households rent.
Age of homes in St. Clair County, IL
% of homes by decade built, St. Clair County, IL
- 13pre-40
- 640s
- 1450s
- 1260s
- 1170s
- 1180s
- 1290s
- 1400s
- 710s
- 120+
Heating fuel in St. Clair County, IL
| St. Clair County, IL | Value | State median | Gap | Rank |
|---|---|---|---|---|
| St. Clair County, IL, median year built | 1975 | 1969 | +6 years | 21 of 102 |
| St. Clair County, IL, built before 1980 | 55.3% | 66.6% | -11.3 points | 85 of 102 |
| St. Clair County, IL, built 2000 or later | 21.4% | 14.2% | +7.2 points | 16 of 102 |
| St. Clair County, IL, detached houses | 71.4% | 78.6% | -7.2 points | 82 of 102 |
| St. Clair County, IL, apartments in 5+ unit buildings | 11.4% | 5.4% | +6.0 points | 16 of 102 |
| St. Clair County, IL, mobile homes | 4.6% | 5.6% | -1.0 points | 56 of 102 |
| St. Clair County, IL, renter households | 32.2% | 23.2% | +9.0 points | 11 of 102 |
| St. Clair County, IL, median home value | $168,800 | $126,000 | +$42,800 | 24 of 102 |
| St. Clair County, IL, median gross rent a month | $1,032 | $793 | +$239 | 11 of 102 |
| St. Clair County, IL, people per household | 2.47 | 2.35 | +0.12 | 24 of 102 |
Cost of living with electricity in St. Clair County
St. Clair County, IL: electricity $1,700 a year per home (DOE LEAD), all home energy $2,531, 3.0% of $84,015 income. 100,701 households in St. Clair County, IL spend about $171.2 million a year on electricity and $254.9 million on all home energy. Lower-income homes in St. Clair County, IL ($21,990 a year) spend 9.8% of income, 3.3 times the all-home figure.
Energy burden in St. Clair County, IL
| St. Clair County, IL | Homes | Income | Power | Gas | Other | Burden |
|---|---|---|---|---|---|---|
| St. Clair County, IL, all households | 100,701 | $84,015 | $1,700 | $806 | $25 | 3.0% |
| St. Clair County, IL, lower income | 32,476 | $21,990 | $1,460 | $687 | $18 | 9.8% |
| St. Clair County, IL, owners | 68,404 | $104,871 | $1,956 | $1,043 | $34 | 2.9% |
| St. Clair County, IL, renters | 32,297 | $39,845 | $1,158 | $304 | $8 | 3.7% |
Flood claims and flood insurance in St. Clair County
St. Clair County, IL: 342 NFIP flood claims in 2015 to 2025, $4.0M paid, median paid claim $8,450.
1,007 of 101,953 residential structures in St. Clair County, IL carry an NFIP contract. 1,024 NFIP policies of any type were in force in St. Clair County, IL on 8 Sep 2026. St. Clair County, IL lists 79 repetitive-loss properties.
St. Clair County, IL: claims history, not an outage count.
Flood claims by year in St. Clair County, IL
flood claims a year, St. Clair County, IL
- 47'15
- 13'16
- 13'17
- 15'18
- 7'19
- 7'20
- <5'21
- 98'22
- 13'23
- 114'24
- 14'25
| St. Clair County, IL | Value | Median county | Rank |
|---|---|---|---|
| St. Clair County, IL, claims 2015-2025 | 342 | — | 4 of 61 |
| St. Clair County, IL, paid 2015-2025 | $4.0M | — | 7 of 61 |
| St. Clair County, IL, median paid claim | $8,450 | — | — |
| St. Clair County, IL, claims per 1,000 homes | 3.4 | 1.1 | 11 of 61 |
| St. Clair County, IL, homes with flood insurance | 1.0% | 0.3% | 13 of 99 |
| St. Clair County, IL, policies in force | 1,024 | — | — |
| St. Clair County, IL, repetitive-loss properties | 79 | — | — |
St. Clair County, IL: OpenFEMA NFIP, claims as of 8 Sep 2026, insured share as of 3 Aug 2026; counts under 5 are hidden.
St. Clair County: flood claims by state, flood hub.
Analyst note on St. Clair County
St. Clair County, IL touches 28 ZIP areas, 62059 to 62293, about 9,099 residents each. St. Clair County, IL counts 254,777 residents in 101,273 households. 33,850 of the 101,273 homes in St. Clair County, IL heat with electricity.
Household income in St. Clair County, IL is $70,178; 68,653 of its 101,273 households own. St. Clair County, IL has 115,348 housing units, 14,075 (12.2%) vacant or seasonal, and 32,620 rented homes. St. Clair County, IL logged 146 storm events for its 254,777 residents.
The median home in St. Clair County, IL dates from 1975. Homes in St. Clair County, IL pay $1,700 a year for electricity.
Bill and heat pump calculator, St. Clair County
Compare St. Clair County with its neighbours
- Madison County sits 19 miles north of St. Clair County, IL with 264,631 residents, 133 storm events, median home built 1970, energy burden 2.9%, income $74,800.
- Monroe County sits 19 miles southwest of St. Clair County, IL with 34,969 residents, 72 storm events, median home built 1990, energy burden 2.5%, income $101,635.
- Jersey County sits 40 miles northwest of St. Clair County, IL with 21,336 residents, 48 storm events, median home built 1975, energy burden 3.2%, income $79,104.
- Randolph County sits 42 miles south of St. Clair County, IL with 30,142 residents, 60 storm events, median home built 1972, energy burden 3.5%, income $68,870.
- Washington County sits 34 miles east of St. Clair County, IL with 13,682 residents, 59 storm events, median home built 1970, energy burden 3.5%, income $75,652.
Cities in St. Clair County
- Belleville electricity rates41,722 residents
- O'Fallon electricity rates32,139 residents
Illinois: home prices since 2001, planned plants.
Questions on St. Clair County
St. Clair County, IL: what do homes pay for electricity?
No single price in St. Clair County, IL: 4 utilities deliver power and homes pick a plan. Illinois average 15.87 cents per kWh, $110 a month at 693 kWh.
St. Clair County, IL: how many homes heat with electricity?
St. Clair County, IL: 33,850 of 101,273 occupied homes, 33.4%, rank 19 of 102.
St. Clair County, IL: median household income?
$70,178 in St. Clair County, IL, rank 35 of 102; 254,777 residents, 101,273 households.
St. Clair County, IL: outage-linked storms since 2015?
St. Clair County, IL: 146 NWS events, peak year 2025.
St. Clair County, IL: flood insurance claims since 2015?
St. Clair County, IL: 342 NFIP flood claims, $4.0M paid, 3.4 per 1,000 homes, 1.0% of homes insured.
How old are the homes in St. Clair County, IL?
St. Clair County, IL: median home built 1975; 55.3% predate 1980, 71.4% detached, 11.4% in 5+ unit buildings.
St. Clair County, IL: share of income for energy?
St. Clair County, IL homes spend $1,700 a year on electricity, $2,531 on all energy: 3.0% of $84,015; 9.8% for lower incomes.