Jacksonville / Middleburg
Middleburg has 11,644 residents (give or take 915) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US1245350, checked 2026-10-19), about 594 people per square mile.
Middleburg is about 24 miles from the Census center point for Jacksonville in a straight line and covers 19.616 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).
Of the 4,558 occupied homes in Middleburg, 0% heat with natural gas, 0% with heating oil, 98% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US1245350, checked 2026-10-19).
Electricity already heats 98% of Middleburg homes, ahead of propane at 1%, and a home on electric baseboard sees the biggest bill change from a heat pump because it replaces resistance heat one for one.
Middleburg has about the Clay County oil share of 0% and 3 points more electric heat than the county's 95% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US12019, checked 2026-10-19).
Middleburg has 5,078 housing units, 0% built before 1940 and 8% before 1980, with 33% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US1245350, checked 2026-10-19).
Middleburg has 9 points fewer homes built after 2000 than the county's 42% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US12019, checked 2026-10-19).
The median Middleburg home was built in 1994 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US1245350, checked 2026-10-19) and the median home has 6.3 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US1245350, checked 2026-10-19).
56% of Middleburg homes are single-family detached, 1% are in two- to four-unit buildings and 1% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US1245350, checked 2026-10-19).
13% of Middleburg homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US1245350, checked 2026-10-19), so beside the 56% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Middleburg has 18 points fewer detached houses than Clay County overall (74%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US12019, checked 2026-10-19).
Only 13% of Middleburg homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US1245350, checked 2026-10-19), so nearly every quote here is the resident talking to the installer directly, and the rebate goes to the person living in the house.
No electric utility is on file for Middleburg on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Median household income in Middleburg is $74,634 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US1245350, checked 2026-10-19); many state and utility heat pump rebate programs set higher incentive tiers for income-qualifying households, so the household income on the application, not the town median, decides which level applies.
Heating design temperature: 32F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Clay County row, 99% heating, PDF pages 17 to 20 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 32F figure is the Clay County cold-day number a Middleburg heat pump is sized against, so ask the installer to show the system's heating output at 32F, not at the milder rating-label temperature.
Ask for the heat-loss calculation room by room; the median Middleburg home has 6.3 rooms and was built around 1994, 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 Middleburg. The public number is the number the contractor quotes from.
No local contractor is named on this door for Middleburg yet. A request from this page goes to the first licensed shop that takes the door.