Charlotte / Wilmington
Wilmington has 120,805 residents (give or take 73) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US3774440, checked 2026-10-19), about 2,352 people per square mile.
Wilmington is about 181 miles from the Census center point for Charlotte in a straight line and covers 51.366 square miles of land (Census 2024 Gazetteer internal points and land area, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/, checked 2026-10-19).
The quote form takes a ZIP code; for Wilmington that is 28401, 28403, 28405, 28409, 28412 (Census 2020 ZCTA to county subdivision and ZCTA to place relationship files, ZIP areas at least 20% inside the town, https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_cousub20_natl.txt and https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_place20_natl.txt, checked 2026-10-19).
Of the 56,612 occupied homes in Wilmington, 13% heat with natural gas, 1% with heating oil, 84% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US3774440, checked 2026-10-19).
Electricity already heats 84% of Wilmington homes, ahead of gas at 13%, and a home on electric baseboard sees the biggest bill change from a heat pump because it replaces resistance heat one for one.
Wilmington has about the New Hanover County oil share of 0% and 4 points less electric heat than the county's 88% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US37129, checked 2026-10-19).
Wilmington has 62,836 housing units, 9% built before 1940 and 38% before 1980, with 33% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US3774440, checked 2026-10-19).
The median Wilmington home was built in 1989 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US3774440, checked 2026-10-19) and the median home has 5 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US3774440, checked 2026-10-19).
50% of Wilmington homes are single-family detached, 10% are in two- to four-unit buildings and 31% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US3774440, checked 2026-10-19).
52% of Wilmington homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US3774440, checked 2026-10-19), so beside the 50% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
No electric utility is on file for Wilmington on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Heating design temperature: 27F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), New Hanover County row, 99% heating, PDF pages 86 to 90 of 141 (Revised 11/11/2020), https://www.energystar.gov/sites/default/files/Design%20Temperature%20Limit%20Reference%20Guide%20(2019%20Ed)%20-%20ENERGY%20STAR%20Single-Family%20New%20Homes_Rev11.pdf, fetched 2026-10-19, 99%.
That 27F figure is the New Hanover County cold-day number a Wilmington heat pump is sized against, so ask the installer to show the system's heating output at 27F, not at the milder rating-label temperature.
Ask for the heat-loss calculation room by room; the median Wilmington home has 5 rooms and was built around 1989, and the count of heads and the tonnage follow the rooms and the insulation, not the square footage.
The form on this page is the follow-up for Wilmington. The public number is the number the contractor quotes from.
No local contractor is named on this door for Wilmington yet. A request from this page goes to the first licensed shop that takes the door.