Trenton / Lawrenceville
Lawrenceville has 3,924 residents (give or take 661) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US3439570, checked 2026-10-19), about 3,766 people per square mile.
Lawrenceville is about 6 miles from the Census center point for Trenton in a straight line and covers 1.042 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 Lawrenceville is $122,614 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US3439570, 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.
3,766 people per square mile puts Lawrenceville in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
41% of Lawrenceville homes are single-family detached, 2% are in two- to four-unit buildings and 14% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US3439570, checked 2026-10-19).
20% of Lawrenceville homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US3439570, checked 2026-10-19), so beside the 41% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Lawrenceville has 7 points fewer detached houses than Mercer County overall (48%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US34021, checked 2026-10-19).
Of the 1,784 occupied homes in Lawrenceville, 75% heat with natural gas, 4% with heating oil, 21% with electricity and 0% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US3439570, checked 2026-10-19).
Gas heats 75% of Lawrenceville against electricity at 21%, 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.
Lawrenceville has about the Mercer County oil share of 6% and 2 points more electric heat than the county's 19% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US34021, checked 2026-10-19).
No electric utility is on file for Lawrenceville 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 Lawrenceville address before counting it. With 21% of Lawrenceville homes already on electric heat and 79% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Lawrenceville has 1,852 housing units, 15% built before 1940 and 31% before 1980, with 0% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US3439570, checked 2026-10-19).
Lawrenceville has 3 points fewer pre-1940 homes than Mercer County as a whole (18%) and 15 points fewer homes built after 2000 than the county's 15% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US34021, checked 2026-10-19).
The median Lawrenceville home was built in 1983 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US3439570, 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=160XX00US3439570, checked 2026-10-19).
Heating design temperature: 6F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Mercer 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 Mercer County cold-day number a Lawrenceville 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 75% of Lawrenceville on gas and 21% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Lawrenceville home has 6.3 rooms and was built around 1983, 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 Lawrenceville. The public number is the number the contractor quotes from.
No local contractor is named on this door for Lawrenceville yet. A request from this page goes to the first licensed shop that takes the door.