Electric companies in New Castle County, Delaware
New Castle County in Delaware has 573,030 residents and 3 utilities listed by EIA.
Households in New Castle County can pick a supplier. How to compare.
New Castle County on the map
New Castle County darker: more storm events
Electric utilities in New Castle County
| Utility listed for New Castle County, DE | Type | Home accounts in Delaware |
|---|---|---|
| Delmarva Power in New Castle County, DE | Investor Owned | 301,950 |
| Town of Middletown in New Castle County, DE | Municipal | 9,071 |
| City of Newark in New Castle County, DE | Municipal | 11,888 |
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.
Facts about New Castle County
- Residents of New Castle County, DE, ACS 2023
- 573,0301 of 3 Delaware counties
- Households in New Castle County, DE
- 222,9432.57 people each
- Owner-occupied homes in New Castle County, DE
- 68.5%152,742 owner and 70,201 renter households
- Median household income in New Castle County, DE
- $89,9011 of 3 Delaware counties
- Housing units in New Castle County, DE
- 235,05712,114 vacant or seasonal, 5.2% of the units
- Homes heated by electricity in New Castle County, DE
- 31.3%69,725 homes, 3 of 3 Delaware counties
- Utilities listed for New Castle County, DE
- 33 with a home price: Delmarva Power, Town of Middletown, City of Newark
- ZIP areas touching New Castle County, DE
- 3019701 to 19977
- Outage-linked storm events in New Castle County, DE
- 281NWS storm events, 2015 to 2025
- Homes built before 1980 in New Castle County, DE
- 56.5%median year built 1975
- Flood claims in New Castle County, DE
- 231NFIP 2015 to 2025, $10.0M paid
- Home energy burden in New Castle County, DE
- 2.0%$1,382 a year on electricity (DOE LEAD)
Bill and heat pump calculator, New Castle County
Compare New Castle County with its neighbours
- Kent County sits 37 miles south of New Castle County, DE with 185,043 residents, 147 storm events, median home built 1993, energy burden 3.0%, income $72,872.
- Sussex County sits 71 miles south of New Castle County, DE with 247,799 residents, 254 storm events, median home built 1999, energy burden 2.6%, income $78,162.
Outage risk in New Castle County
New Castle County, DE, NWS storm events 2015 to 2025: 281 in all, 49.0 per 100,000 residents of 573,030, rank 1 of 3 Delaware counties. Property damage in New Castle County, DE: $401K, with 23 direct injuries or deaths.
Events by year in New Castle County, DE
events a year, New Castle County, DE
- 32'15
- 30'16
- 18'17
- 4'18
- 31'19
- 59'20
- 22'21
- 11'22
- 31'23
- 22'24
- 21'25
Events by type
| New Castle County, DE | FEMA | Score | Rank | Events | Peak | Damage |
|---|---|---|---|---|---|---|
| New Castle County, DE, thunderstorm and high wind | Relatively High | 88.3 | 1 of 3 | 244 | 2020 (56) | $201K |
| New Castle County, DE, tornado | Relatively Moderate | 88.1 | 1 of 3 | 5 | 2020 (2) | $200K |
| New Castle County, DE, hurricane and tropical storm | Relatively Moderate | 88.4 | 3 of 3 | 1 | 2020 (1) | $0 |
| New Castle County, DE, ice storm | Relatively High | 89.0 | 1 of 3 | 0 | none | $0 |
| New Castle County, DE, winter storm and heavy snow | Very High | 99.5 | 1 of 3 | 12 | 2015 (3) | $0 |
| New Castle County, DE, heat wave | Relatively Moderate | 95.3 | 1 of 3 | 19 | 2024 (5) | $0 |
Housing and heating in New Castle County
New Castle County, DE: 132,910 of 235,057 homes were built before 1980 and 44,485 in 2000 or later. New Castle County, DE has 124,150 detached houses, 44,462 homes in 5+ unit buildings, 5,267 mobile homes, and 70,201 of 222,943 households rent.
Age of homes in New Castle County, DE
% of homes by decade built, New Castle County, DE
- 11pre-40
- 640s
- 1450s
- 1360s
- 1370s
- 1280s
- 1390s
- 1100s
- 710s
- 120+
Heating fuel in New Castle County, DE
| New Castle County, DE | Value | State median | Gap | Rank |
|---|---|---|---|---|
| New Castle County, DE, median year built | 1975 | 1993 | -18 years | 3 of 3 |
| New Castle County, DE, built before 1980 | 56.5% | 34.8% | +21.7 points | 1 of 3 |
| New Castle County, DE, built 2000 or later | 18.9% | 39.6% | -20.6 points | 3 of 3 |
| New Castle County, DE, detached houses | 52.8% | 64.9% | -12.1 points | 3 of 3 |
| New Castle County, DE, apartments in 5+ unit buildings | 18.9% | 11.6% | +7.4 points | 1 of 3 |
| New Castle County, DE, mobile homes | 2.2% | 10.7% | -8.4 points | 3 of 3 |
| New Castle County, DE, renter households | 31.5% | 29.0% | +2.5 points | 1 of 3 |
| New Castle County, DE, median home value | $329,800 | $329,800 | +$0 | 2 of 3 |
| New Castle County, DE, median gross rent a month | $1,379 | $1,285 | +$94 | 1 of 3 |
| New Castle County, DE, people per household | 2.50 | 2.50 | +0.00 | 2 of 3 |
Cost of living with electricity in New Castle County
New Castle County, DE: electricity $1,382 a year per home (DOE LEAD), all home energy $2,122, 2.0% of $104,822 income. 220,437 households in New Castle County, DE spend about $304.6 million a year on electricity and $467.8 million on all home energy. Lower-income homes in New Castle County, DE ($20,566 a year) spend 8.0% of income, 4.0 times the all-home figure.
Energy burden in New Castle County, DE
| New Castle County, DE | Homes | Income | Power | Gas | Other | Burden |
|---|---|---|---|---|---|---|
| New Castle County, DE, all households | 220,437 | $104,822 | $1,382 | $536 | $204 | 2.0% |
| New Castle County, DE, lower income | 52,028 | $20,566 | $1,102 | $383 | $163 | 8.0% |
| New Castle County, DE, owners | 150,245 | $129,190 | $1,611 | $696 | $281 | 2.0% |
| New Castle County, DE, renters | 70,192 | $52,662 | $890 | $195 | $40 | 2.1% |
Flood claims and flood insurance in New Castle County
New Castle County, DE: 231 NFIP flood claims in 2015 to 2025, $10.0M paid, median paid claim $6,457.
1,599 of 181,854 residential structures in New Castle County, DE carry an NFIP contract. 2,572 NFIP policies of any type were in force in New Castle County, DE on 8 Sep 2026. New Castle County, DE lists 140 repetitive-loss properties, 23 of them severe repetitive loss.
New Castle County, DE: claims history, not an outage count.
Flood claims by year in New Castle County, DE
flood claims a year, New Castle County, DE
- 6'15
- 9'16
- 6'17
- 11'18
- <5'19
- 56'20
- 106'21
- 6'22
- 10'23
- 11'24
- 8'25
| New Castle County, DE | Value | Median county | Rank |
|---|---|---|---|
| New Castle County, DE, claims 2015-2025 | 231 | — | 2 of 3 |
| New Castle County, DE, paid 2015-2025 | $10.0M | — | 1 of 3 |
| New Castle County, DE, median paid claim | $6,457 | — | — |
| New Castle County, DE, claims per 1,000 homes | 1.3 | 1.3 | 2 of 3 |
| New Castle County, DE, homes with flood insurance | 0.9% | 1.3% | 3 of 3 |
| New Castle County, DE, policies in force | 2,572 | — | — |
| New Castle County, DE, repetitive-loss properties | 140 | — | — |
New Castle County, DE: OpenFEMA NFIP, claims as of 8 Sep 2026, insured share as of 3 Aug 2026; counts under 5 are hidden.
New Castle County: flood claims by state, flood hub.
Analyst note on New Castle County
New Castle County, DE counts 573,030 residents in 222,943 households. Household income in New Castle County, DE is $89,901; 152,742 of its 222,943 households own. New Castle County, DE touches 30 ZIP areas, 19701 to 19977, about 19,101 residents each.
69,725 of the 222,943 homes in New Castle County, DE heat with electricity. New Castle County, DE has 235,057 housing units, 12,114 (5.2%) vacant or seasonal, and 70,201 rented homes. New Castle County, DE logged 281 storm events for its 573,030 residents.
The median home in New Castle County, DE dates from 1975. Homes in New Castle County, DE pay $1,382 a year for electricity.
Cities in New Castle County
- Wilmington electricity rates71,124 residents
- Newark electricity rates30,309 residents
ZIP codes in New Castle County
- 19701
- 19702
- 19703
- 19706
- 19707
- 19709
- 19710
- 19711
- 19713
- 19716
- 19717
- 19720
- 19730
- 19731
- 19732
- 19733
- 19734
- 19735
- 19736
- 19801
- 19802
- 19803
- 19804
- 19805
- 19806
- 19807
- 19808
- 19809
- 19810
- 19977
Delaware: home prices since 2001, planned plants. 133 MW planned in this county.
Questions on New Castle County
New Castle County, DE: what do homes pay for electricity?
No single price in New Castle County, DE: 3 utilities deliver power and homes pick a plan. Delaware average 16.57 cents per kWh, $151 a month at 911 kWh.
New Castle County, DE: how many homes heat with electricity?
New Castle County, DE: 69,725 of 222,943 occupied homes, 31.3%, rank 3 of 3.
New Castle County, DE: median household income?
$89,901 in New Castle County, DE, rank 1 of 3; 573,030 residents, 222,943 households.
New Castle County, DE: outage-linked storms since 2015?
New Castle County, DE: 281 NWS events, peak year 2020.
New Castle County, DE: flood insurance claims since 2015?
New Castle County, DE: 231 NFIP flood claims, $10.0M paid, 1.3 per 1,000 homes, 0.9% of homes insured.
How old are the homes in New Castle County, DE?
New Castle County, DE: median home built 1975; 56.5% predate 1980, 52.8% detached, 18.9% in 5+ unit buildings.
New Castle County, DE: share of income for energy?
New Castle County, DE homes spend $1,382 a year on electricity, $2,122 on all energy: 2.0% of $104,822; 8.0% for lower incomes.