Trenton / Plainsboro
Plainsboro has 24,167 residents (give or take 40) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=060XX00US3402359280, checked 2026-10-19), about 2,054 people per square mile.
Plainsboro is about 12 miles from the Census center point for Trenton in a straight line and covers 11.764 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 Plainsboro that is 08536 (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).
Median household income in Plainsboro is $131,638 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=060XX00US3402359280, 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.
30% of Plainsboro homes are single-family detached, 11% are in two- to four-unit buildings and 47% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=060XX00US3402359280, checked 2026-10-19).
With 47% of Plainsboro homes in buildings of five or more units and 30% detached, the condo association usually decides where outdoor units can go, so that approval comes before the quote. With 52% of Plainsboro homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US3402359280, checked 2026-10-19), the landlord signs the quote in many of them.
Plainsboro has 22 points fewer detached houses than Middlesex County overall (52%) and 23 points more five-plus-unit buildings than the county's 24% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US34023, checked 2026-10-19).
52% of Plainsboro homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US3402359280, checked 2026-10-19), so the market splits between resident-led jobs where the occupant picks the system and landlord-led jobs where they do not, and the rebate paperwork differs.
Of the 9,853 occupied homes in Plainsboro, 57% heat with natural gas, 1% with heating oil, 42% with electricity and 0% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=060XX00US3402359280, checked 2026-10-19).
Gas heats 57% of Plainsboro against electricity at 42%, 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.
Plainsboro has about the Middlesex County oil share of 3% and 27 points more electric heat than the county's 15% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US34023, checked 2026-10-19).
No electric utility is on file for Plainsboro 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 Plainsboro address before counting it. With 42% of Plainsboro homes already on electric heat and 58% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Plainsboro has 10,175 housing units, 2% built before 1940 and 26% before 1980, with 18% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US3402359280, checked 2026-10-19).
Plainsboro has 8 points fewer pre-1940 homes than Middlesex County as a whole (10%) (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US34023, checked 2026-10-19).
The median Plainsboro home was built in 1986 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=060XX00US3402359280, checked 2026-10-19) and the median home has 4.3 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=060XX00US3402359280, checked 2026-10-19).
Heating design temperature: 10F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Middlesex 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 10F figure is the Middlesex County cold-day number a Plainsboro heat pump is sized against, so ask the installer to show the system's heating output at 10F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 57% of Plainsboro on gas and 42% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Plainsboro home has 4.3 rooms and was built around 1986, 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 Plainsboro. The public number is the number the contractor quotes from.
No local contractor is named on this door for Plainsboro yet. A request from this page goes to the first licensed shop that takes the door.