Electric companies in Williamson County, Tennessee
Williamson County, TN ranks 1 of 95 Tennessee counties for the newest homes (median year built 2001). Williamson County in Tennessee has 254,609 residents and 4 utilities listed by EIA, with home prices of 11.76 to 13.47 cents per kWh.
Williamson County on the map
Williamson County darker: more storm events
Housing and heating in Williamson County
Williamson County, TN: 16,274 of 94,418 homes were built before 1980 and 49,396 in 2000 or later. Williamson County, TN has 73,715 detached houses, 11,924 homes in 5+ unit buildings, 1,567 mobile homes, and 18,346 of 90,716 households rent.
Age of homes in Williamson County, TN
% of homes by decade built, Williamson County, TN
- 2pre-40
- 140s
- 250s
- 460s
- 970s
- 1180s
- 1990s
- 2300s
- 2610s
- 320+
Heating fuel in Williamson County, TN
| Williamson County, TN | Value | State median | Gap | Rank |
|---|---|---|---|---|
| Williamson County, TN, median year built | 2001 | 1985 | +16 years | 1 of 95 |
| Williamson County, TN, built before 1980 | 17.2% | 42.5% | -25.2 points | 95 of 95 |
| Williamson County, TN, built 2000 or later | 52.3% | 25.9% | +26.5 points | 1 of 95 |
| Williamson County, TN, detached houses | 78.1% | 72.1% | +6.0 points | 14 of 95 |
| Williamson County, TN, apartments in 5+ unit buildings | 12.6% | 4.1% | +8.5 points | 9 of 95 |
| Williamson County, TN, mobile homes | 1.7% | 16.6% | -15.0 points | 93 of 95 |
| Williamson County, TN, renter households | 20.2% | 25.0% | -4.8 points | 76 of 95 |
| Williamson County, TN, median home value | $673,700 | $186,300 | +$487,400 | 1 of 95 |
| Williamson County, TN, median gross rent a month | $1,895 | $804 | +$1,091 | 1 of 95 |
| Williamson County, TN, people per household | 2.80 | 2.49 | +0.31 | 2 of 95 |
Facts about Williamson County
- Residents of Williamson County, TN, ACS 2023
- 254,6096 of 95 Tennessee counties
- Households in Williamson County, TN
- 90,7162.81 people each
- Owner-occupied homes in Williamson County, TN
- 79.8%72,370 owner and 18,346 renter households
- Median household income in Williamson County, TN
- $131,2021 of 95 Tennessee counties
- Housing units in Williamson County, TN
- 94,4183,702 vacant or seasonal, 3.9% of the units
- Homes heated by electricity in Williamson County, TN
- 41.7%37,843 homes, 89 of 95 Tennessee counties
- Utilities listed for Williamson County, TN
- 44 with a home price: Middle Tennessee E M C, Columbia Power System, Duck River Elec Member Corp
- Lowest home price in Williamson County, TN
- 11.76 ¢/kWhMiddle Tennessee E M C, 12.7% below the highest
- Highest home price in Williamson County, TN
- 13.47 ¢/kWhNashville Electric Service
- Monthly bill gap in Williamson County, TN
- $20between the two at 1,154 kWh, $236 a year, 0.18% of the Williamson County, TN median income
- ZIP areas touching Williamson County, TN
- 1137014 to 38476
- Outage-linked storm events in Williamson County, TN
- 244NWS storm events, 2015 to 2025
- Homes built before 1980 in Williamson County, TN
- 17.2%median year built 2001
- Flood claims in Williamson County, TN
- 274NFIP 2015 to 2025, $9.9M paid
- Home energy burden in Williamson County, TN
- 1.5%$1,736 a year on electricity (DOE LEAD)
Cost of living with electricity in Williamson County
Williamson County, TN: electricity $1,736 a year per home (DOE LEAD), all home energy $2,458, 1.5% of $166,201 income. 88,238 households in Williamson County, TN spend about $153.2 million a year on electricity and $216.9 million on all home energy. Lower-income homes in Williamson County, TN ($19,104 a year) spend 9.0% of income, 6.1 times the all-home figure.
Energy burden in Williamson County, TN
| Williamson County, TN | Homes | Income | Power | Gas | Other | Burden |
|---|---|---|---|---|---|---|
| Williamson County, TN, all households | 88,238 | $166,201 | $1,736 | $701 | $21 | 1.5% |
| Williamson County, TN, lower income | 8,534 | $19,104 | $1,303 | $409 | $12 | 9.0% |
| Williamson County, TN, owners | 70,530 | $186,240 | $1,912 | $843 | $26 | 1.5% |
| Williamson County, TN, renters | 17,708 | $86,386 | $1,036 | $136 | $2 | 1.4% |
Outage risk in Williamson County
Williamson County, TN, NWS storm events 2015 to 2025: 244 in all, 95.8 per 100,000 residents of 254,609, rank 5 of 95 Tennessee counties. Property damage in Williamson County, TN: $10.3M, with 2 direct injuries or deaths.
Events by year in Williamson County, TN
events a year, Williamson County, TN
- 14'15
- 42'16
- 42'17
- 12'18
- 20'19
- 11'20
- 10'21
- 25'22
- 34'23
- 12'24
- 22'25
Events by type
| Williamson County, TN | FEMA | Score | Rank | Events | Peak | Damage |
|---|---|---|---|---|---|---|
| Williamson County, TN, thunderstorm and high wind | Relatively High | 89.1 | 7 of 95 | 223 | 2016 (41) | $2.7M |
| Williamson County, TN, tornado | Relatively Moderate | 88.9 | 14 of 95 | 7 | 2015 (1) | $7.4M |
| Williamson County, TN, hurricane and tropical storm | Very Low | 41.0 | 59 of 95 | 0 | none | $0 |
| Williamson County, TN, ice storm | Relatively High | 84.4 | 11 of 95 | 0 | none | $0 |
| Williamson County, TN, winter storm and heavy snow | Relatively Moderate | 84.7 | 9 of 95 | 11 | 2022 (4) | $100K |
| Williamson County, TN, heat wave | Relatively Low | 72.5 | 18 of 95 | 3 | 2025 (2) | $0 |
Flood claims and flood insurance in Williamson County
Williamson County, TN: 274 NFIP flood claims in 2015 to 2025, $9.9M paid, median paid claim $24,452.
1,284 of 53,519 residential structures in Williamson County, TN carry an NFIP contract. 1,406 NFIP policies of any type were in force in Williamson County, TN on 8 Sep 2026. Williamson County, TN lists 76 repetitive-loss properties, 15 of them severe repetitive loss.
Williamson County, TN: claims history, not an outage count.
Flood claims by year in Williamson County, TN
flood claims a year, Williamson County, TN
- <5'15
- 0'16
- 28'17
- <5'18
- 10'19
- 21'20
- 198'21
- <5'22
- <5'23
- <5'24
- <5'25
| Williamson County, TN | Value | Median county | Rank |
|---|---|---|---|
| Williamson County, TN, claims 2015-2025 | 274 | — | 2 of 69 |
| Williamson County, TN, paid 2015-2025 | $9.9M | — | 3 of 69 |
| Williamson County, TN, median paid claim | $24,452 | — | — |
| Williamson County, TN, claims per 1,000 homes | 5.1 | 1.2 | 6 of 69 |
| Williamson County, TN, homes with flood insurance | 2.4% | 0.4% | 1 of 95 |
| Williamson County, TN, policies in force | 1,406 | — | — |
| Williamson County, TN, repetitive-loss properties | 76 | — | — |
Williamson County, TN: OpenFEMA NFIP, claims as of 8 Sep 2026, insured share as of 3 Aug 2026; counts under 5 are hidden.
Williamson County: flood claims by state, flood hub.
Electric utilities in Williamson County
| Utility listed for Williamson County, TN | Type | Home price ¢/kWh | Yearly bill at 1,154 kWh | Share of Williamson County, TN median income of $131,202 |
|---|---|---|---|---|
| Middle Tennessee E M C in Williamson County, TN | Cooperative | 11.76 | $1,628 | 1.24% |
| Columbia Power System in Williamson County, TN | Municipal | 12.00 | $1,662 | 1.27% |
| Duck River Elec Member Corp in Williamson County, TN | Cooperative | 12.50 | $1,730 | 1.32% |
| Nashville Electric Service in Williamson County, TN | Municipal | 13.47 | $1,865 | 1.42% |
Prices are statewide utility averages, not a county price.
Analyst note on Williamson County
Household income in Williamson County, TN is $131,202; 72,370 of its 90,716 households own. Williamson County, TN counts 254,609 residents in 90,716 households. 37,843 of the 90,716 homes in Williamson County, TN heat with electricity.
Williamson County, TN touches 11 ZIP areas, 37014 to 38476, about 23,146 residents each. Williamson County, TN has 94,418 housing units, 3,702 (3.9%) vacant or seasonal, and 18,346 rented homes. Williamson County, TN logged 244 storm events for its 254,609 residents.
The median home in Williamson County, TN dates from 2001. Homes in Williamson County, TN pay $1,736 a year for electricity. Williamson County, TN home prices run Middle Tennessee E M C to Nashville Electric Service, $20 a month apart at 1,154 kWh.
Bill and heat pump calculator, Williamson County
Compare Williamson County with its neighbours
- Davidson County sits 20 miles north of Williamson County, TN with 709,846 residents, 537 storm events, median home built 1985, energy burden 1.9%, income $75,664.
- Maury County sits 24 miles southwest of Williamson County, TN with 104,855 residents, 130 storm events, median home built 1993, energy burden 2.4%, income $74,162.
- Rutherford County sits 22 miles east of Williamson County, TN with 351,591 residents, 174 storm events, median home built 2000, energy burden 2.0%, income $82,588.
- Marshall County sits 28 miles south of Williamson County, TN with 35,276 residents, 76 storm events, median home built 1991, energy burden 3.2%, income $70,829.
- Cheatham County sits 30 miles northwest of Williamson County, TN with 41,500 residents, 82 storm events, median home built 1991, energy burden 2.8%, income $82,015.
Cities in Williamson County
- Franklin electricity rates85,575 residents
- Brentwood electricity rates45,272 residents
ZIP codes in Williamson County
- 37014
- 37027
- 37046
- 37062
- 37064
- 37067
- 37069
- 37135
- 37174
- 37179
- 38476
Tennessee: home prices since 2001, planned plants.
Questions on Williamson County
Williamson County, TN: what do homes pay for electricity?
Williamson County, TN homes paid 11.76 to 13.47 cents per kWh in 2024 across 4 listed utilities: $136 to $155 a month at 1,154 kWh, 1.24% to 1.42% of Williamson County, TN income.
Williamson County, TN: how many homes heat with electricity?
Williamson County, TN: 37,843 of 90,716 occupied homes, 41.7%, rank 89 of 95.
Williamson County, TN: median household income?
$131,202 in Williamson County, TN, rank 1 of 95; 254,609 residents, 90,716 households.
Williamson County, TN: outage-linked storms since 2015?
Williamson County, TN: 244 NWS events, peak year 2016.
Williamson County, TN: flood insurance claims since 2015?
Williamson County, TN: 274 NFIP flood claims, $9.9M paid, 5.1 per 1,000 homes, 2.4% of homes insured.
How old are the homes in Williamson County, TN?
Williamson County, TN: median home built 2001; 17.2% predate 1980, 78.1% detached, 12.6% in 5+ unit buildings.
Williamson County, TN: share of income for energy?
Williamson County, TN homes spend $1,736 a year on electricity, $2,458 on all energy: 1.5% of $166,201; 9.0% for lower incomes.