Trenton / Flemington
Flemington has 4,896 residents (give or take 20) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US3423700, checked 2026-10-19), about 4,546 people per square mile.
Flemington is about 20 miles from the Census center point for Trenton in a straight line and covers 1.077 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).
Median household income in Flemington is $69,978 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US3423700, 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.
4,546 people per square mile puts Flemington in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
35% of Flemington homes are single-family detached, 22% are in two- to four-unit buildings and 35% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US3423700, checked 2026-10-19).
66% of Flemington homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US3423700, checked 2026-10-19), so beside the 35% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Flemington has 39 points fewer detached houses than Hunterdon County overall (74%) and 27 points more five-plus-unit buildings than the county's 8% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US34019, checked 2026-10-19).
With 66% of Flemington homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US3423700, checked 2026-10-19), most heat pump quotes here are landlord-driven: the landlord signs the contract and picks the equipment, and the tenant sees the lower bill.
Of the 2,119 occupied homes in Flemington, 76% heat with natural gas, 6% with heating oil, 12% with electricity and 6% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US3423700, checked 2026-10-19).
Gas heats 76% of Flemington against electricity at 12%, so most quotes here are a partial-home system that carries the shoulder seasons and the summer while the gas furnace handles the coldest nights, or a whole-home system when the house is ready for it.
Flemington has 24 points less oil heat than Hunterdon County as a whole, where 30% of homes burn oil, and 1 points more electric heat than the county's 11% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US34019, checked 2026-10-19).
No electric utility is on file for Flemington on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
JCP&L Clean Comfort (residential building decarbonization), run by JCP&L, is a live program for New Jersey addresses and covers qualifying equipment at $7,500 per system (registry row 8 verified 2026-10-15, https://www.neifund.org/wp-content/uploads/2026/04/0925_JCPL_Res_Bldg-Decarb_5860532_FRM_Rebate-Application_2025.pdf, checked 2026-10-16); confirm eligibility for the Flemington address before counting it. With 12% of Flemington homes already on electric heat and 88% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Flemington has 2,191 housing units, 25% built before 1940 and 80% before 1980, with 11% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US3423700, checked 2026-10-19).
Flemington has 8 points more pre-1940 homes than Hunterdon County as a whole (17%) and 3 points fewer homes built after 2000 than the county's 14% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US34019, checked 2026-10-19). An older stock means more insulation upgrades before the heat pump goes in.
The median Flemington home was built in 1959 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US3423700, checked 2026-10-19) and the median home has 4.4 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US3423700, checked 2026-10-19).
80% of Flemington homes were built before 1980 and only 11% in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US3423700, checked 2026-10-19), so most of the stock predates modern insulation codes; the installer's heat-loss calculation, not a square-footage rule, decides the tonnage.
Heating design temperature: 6F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Hunterdon County row, 99% heating, PDF pages 81 to 82 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 6F figure is the Hunterdon County cold-day number a Flemington heat pump is sized against, so ask the installer to show the system's heating output at 6F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 76% of Flemington on gas and 12% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Flemington home has 4.4 rooms and was built around 1959, 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 Flemington. The public number is the number the contractor quotes from.
No local contractor is named on this door for Flemington yet. A request from this page goes to the first licensed shop that takes the door.