Electric companies in Rock County, Wisconsin
Rock County, WI ranks 4 of 72 Wisconsin counties for tornado risk, FEMA score 94.3. Rock County in Wisconsin has 163,944 residents and 6 utilities listed by EIA, with home prices of 12.60 to 19.23 cents per kWh.
Rock County on the map
Rock County darker: more storm events
Outage risk in Rock County
Rock County, WI, NWS storm events 2015 to 2025: 133 in all, 81.1 per 100,000 residents of 163,944, rank 7 of 72 Wisconsin counties. Property damage in Rock County, WI: $33.6M, with 1 direct injuries or deaths.
Events by year in Rock County, WI
events a year, Rock County, WI
- 9'15
- 13'16
- 12'17
- 11'18
- 9'19
- 8'20
- 5'21
- 11'22
- 14'23
- 26'24
- 15'25
Events by type
| Rock County, WI | FEMA | Score | Rank | Events | Peak | Damage |
|---|---|---|---|---|---|---|
| Rock County, WI, thunderstorm and high wind | Relatively High | 86.2 | 8 of 72 | 90 | 2024 (17) | $832K |
| Rock County, WI, tornado | Relatively High | 94.3 | 4 of 72 | 12 | 2024 (5) | $32.8M |
| Rock County, WI, hurricane and tropical storm | Very Low | 14.9 | 14 of 66 | 0 | none | $0 |
| Rock County, WI, ice storm | Relatively Low | 57.9 | 7 of 72 | 1 | 2023 (1) | $0 |
| Rock County, WI, winter storm and heavy snow | Relatively Moderate | 61.2 | 26 of 72 | 18 | 2023 (4) | $25K |
| Rock County, WI, heat wave | Relatively Moderate | 80.8 | 7 of 72 | 12 | 2018 (3) | $0 |
Electric utilities in Rock County
| Utility listed for Rock County, WI | Type | Home price ¢/kWh | Yearly bill at 645 kWh | Share of Rock County, WI median income of $74,390 |
|---|---|---|---|---|
| City of Stoughton in Rock County, WI | Municipal | 12.60 | $975 | 1.31% |
| Brodhead Water & Lighting Comm in Rock County, WI | Municipal | 13.21 | $1,023 | 1.37% |
| Rock Energy Cooperative in Rock County, WI | Cooperative | 14.47 | $1,120 | 1.51% |
| City of Evansville in Rock County, WI | Municipal | 15.83 | $1,225 | 1.65% |
| Wisconsin Power & Light Co in Rock County, WI | Investor Owned | 16.89 | $1,308 | 1.76% |
| Wisconsin Electric Power Co in Rock County, WI | Investor Owned | 19.23 | $1,489 | 2.00% |
Prices are statewide utility averages, not a county price.
Facts about Rock County
- Residents of Rock County, WI, ACS 2023
- 163,9449 of 72 Wisconsin counties
- Households in Rock County, WI
- 66,6522.46 people each
- Owner-occupied homes in Rock County, WI
- 70.6%47,086 owner and 19,566 renter households
- Median household income in Rock County, WI
- $74,39023 of 72 Wisconsin counties
- Housing units in Rock County, WI
- 70,6944,042 vacant or seasonal, 5.7% of the units
- Homes heated by electricity in Rock County, WI
- 18.3%12,177 homes, 10 of 72 Wisconsin counties
- Utilities listed for Rock County, WI
- 66 with a home price: City of Stoughton, Brodhead Water & Lighting Comm, Rock Energy Cooperative
- Lowest home price in Rock County, WI
- 12.60 ¢/kWhCity of Stoughton, 34.5% below the highest
- Highest home price in Rock County, WI
- 19.23 ¢/kWhWisconsin Electric Power Co
- Monthly bill gap in Rock County, WI
- $43between the two at 645 kWh, $514 a year, 0.69% of the Rock County, WI median income
- ZIP areas touching Rock County, WI
- 1553114 to 53576
- Outage-linked storm events in Rock County, WI
- 133NWS storm events, 2015 to 2025
- Homes built before 1980 in Rock County, WI
- 65.8%median year built 1970
- Flood claims in Rock County, WI
- 26NFIP 2015 to 2025, $206K paid
- Home energy burden in Rock County, WI
- 2.9%$1,254 a year on electricity (DOE LEAD)
Housing and heating in Rock County
Rock County, WI: 46,519 of 70,694 homes were built before 1980 and 10,448 in 2000 or later. Rock County, WI has 52,509 detached houses, 8,071 homes in 5+ unit buildings, 1,791 mobile homes, and 19,566 of 66,652 households rent.
Age of homes in Rock County, WI
% of homes by decade built, Rock County, WI
- 19pre-40
- 740s
- 1150s
- 1360s
- 1570s
- 880s
- 1290s
- 1000s
- 410s
- 120+
Heating fuel in Rock County, WI
| Rock County, WI | Value | State median | Gap | Rank |
|---|---|---|---|---|
| Rock County, WI, median year built | 1970 | 1977 | -7 years | 61 of 72 |
| Rock County, WI, built before 1980 | 65.8% | 55.5% | +10.3 points | 6 of 72 |
| Rock County, WI, built 2000 or later | 14.8% | 20.2% | -5.4 points | 68 of 72 |
| Rock County, WI, detached houses | 74.3% | 76.4% | -2.1 points | 46 of 72 |
| Rock County, WI, apartments in 5+ unit buildings | 11.4% | 8.0% | +3.4 points | 24 of 72 |
| Rock County, WI, mobile homes | 2.5% | 4.8% | -2.2 points | 60 of 72 |
| Rock County, WI, renter households | 29.4% | 23.4% | +6.0 points | 13 of 72 |
| Rock County, WI, median home value | $215,900 | $209,350 | +$6,550 | 32 of 72 |
| Rock County, WI, median gross rent a month | $1,019 | $860 | +$160 | 11 of 72 |
| Rock County, WI, people per household | 2.42 | 2.35 | +0.07 | 16 of 72 |
Cost of living with electricity in Rock County
Rock County, WI: electricity $1,254 a year per home (DOE LEAD), all home energy $2,247, 2.9% of $78,798 income. 66,439 households in Rock County, WI spend about $83.3 million a year on electricity and $149.3 million on all home energy. Lower-income homes in Rock County, WI ($22,683 a year) spend 7.7% of income, 2.7 times the all-home figure.
Energy burden in Rock County, WI
| Rock County, WI | Homes | Income | Power | Gas | Other | Burden |
|---|---|---|---|---|---|---|
| Rock County, WI, all households | 66,439 | $78,798 | $1,254 | $926 | $67 | 2.9% |
| Rock County, WI, lower income | 17,824 | $22,683 | $1,088 | $622 | $42 | 7.7% |
| Rock County, WI, owners | 46,462 | $95,832 | $1,400 | $1,167 | $94 | 2.8% |
| Rock County, WI, renters | 19,977 | $39,181 | $916 | $366 | $5 | 3.3% |
Flood claims and flood insurance in Rock County
Rock County, WI: 26 NFIP flood claims in 2015 to 2025, $206K paid, median paid claim $5,630.
221 of 52,484 residential structures in Rock County, WI carry an NFIP contract. 286 NFIP policies of any type were in force in Rock County, WI on 8 Sep 2026. Rock County, WI lists 14 repetitive-loss properties.
Rock County, WI: claims history, not an outage count.
Flood claims by year in Rock County, WI
flood claims a year, Rock County, WI
- 0'15
- 0'16
- <5'17
- 12'18
- 8'19
- <5'20
- 0'21
- 0'22
- 0'23
- <5'24
- 0'25
| Rock County, WI | Value | Median county | Rank |
|---|---|---|---|
| Rock County, WI, claims 2015-2025 | 26 | — | 20 of 54 |
| Rock County, WI, paid 2015-2025 | $206K | — | 35 of 54 |
| Rock County, WI, median paid claim | $5,630 | — | — |
| Rock County, WI, claims per 1,000 homes | 0.5 | 1.0 | 39 of 54 |
| Rock County, WI, homes with flood insurance | 0.4% | 0.4% | 27 of 71 |
| Rock County, WI, policies in force | 286 | — | — |
| Rock County, WI, repetitive-loss properties | 14 | — | — |
Rock County, WI: OpenFEMA NFIP, claims as of 8 Sep 2026, insured share as of 3 Aug 2026; counts under 5 are hidden.
Rock County: flood claims by state, flood hub.
Analyst note on Rock County
Rock County, WI counts 163,944 residents in 66,652 households. Rock County, WI touches 15 ZIP areas, 53114 to 53576, about 10,930 residents each. Household income in Rock County, WI is $74,390; 47,086 of its 66,652 households own.
12,177 of the 66,652 homes in Rock County, WI heat with electricity. Rock County, WI has 70,694 housing units, 4,042 (5.7%) vacant or seasonal, and 19,566 rented homes. Rock County, WI logged 133 storm events for its 163,944 residents.
The median home in Rock County, WI dates from 1970. Homes in Rock County, WI pay $1,254 a year for electricity. Rock County, WI home prices run City of Stoughton to Wisconsin Electric Power Co, $43 a month apart at 645 kWh.
Bill and heat pump calculator, Rock County
Compare Rock County with its neighbours
- Green County sits 26 miles west of Rock County, WI with 37,036 residents, 85 storm events, median home built 1971, energy burden 2.6%, income $80,248.
- Jefferson County sits 34 miles northeast of Rock County, WI with 85,867 residents, 114 storm events, median home built 1974, energy burden 2.3%, income $80,604.
- Walworth County sits 29 miles east of Rock County, WI with 105,447 residents, 126 storm events, median home built 1977, energy burden 2.3%, income $77,359.
- Dane County sits 37 miles northwest of Rock County, WI with 564,777 residents, 183 storm events, median home built 1985, energy burden 1.6%, income $88,108.
- Dodge County sits 56 miles north of Rock County, WI with 88,818 residents, 130 storm events, median home built 1970, energy burden 2.9%, income $73,992.
Cities in Rock County
- Janesville electricity rates65,813 residents
- Beloit electricity rates36,554 residents
ZIP codes in Rock County
- 53114
- 53190
- 53501
- 53505
- 53511
- 53520
- 53525
- 53534
- 53536
- 53537
- 53545
- 53546
- 53548
- 53563
- 53576
Wisconsin: home prices since 2001, planned plants.
Questions on Rock County
Rock County, WI: what do homes pay for electricity?
Rock County, WI homes paid 12.60 to 19.23 cents per kWh in 2024 across 6 listed utilities: $81 to $124 a month at 645 kWh, 1.31% to 2.00% of Rock County, WI income.
Rock County, WI: how many homes heat with electricity?
Rock County, WI: 12,177 of 66,652 occupied homes, 18.3%, rank 10 of 72.
Rock County, WI: median household income?
$74,390 in Rock County, WI, rank 23 of 72; 163,944 residents, 66,652 households.
Rock County, WI: outage-linked storms since 2015?
Rock County, WI: 133 NWS events, peak year 2024.
Rock County, WI: flood insurance claims since 2015?
Rock County, WI: 26 NFIP flood claims, $206K paid, 0.5 per 1,000 homes, 0.4% of homes insured.
How old are the homes in Rock County, WI?
Rock County, WI: median home built 1970; 65.8% predate 1980, 74.3% detached, 11.4% in 5+ unit buildings.
Rock County, WI: share of income for energy?
Rock County, WI homes spend $1,254 a year on electricity, $2,247 on all energy: 2.9% of $78,798; 7.7% for lower incomes.