Arlington / Haymarket
Haymarket has 1,580 residents (give or take 204) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US5135976, checked 2026-10-19), about 2,753 people per square mile.
Haymarket is about 29 miles from the Census center point for Arlington in a straight line and covers 0.574 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 511 occupied homes in Haymarket, 62% heat with natural gas, 0% with heating oil, 37% with electricity and 2% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US5135976, checked 2026-10-19).
Gas heats 62% of Haymarket against electricity at 37%, 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.
Haymarket has about the Prince William County oil share of 2% and 3 points less electric heat than the county's 40% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US51153, checked 2026-10-19).
Haymarket has 514 housing units, 1% built before 1940 and 4% before 1980, with 38% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US5135976, checked 2026-10-19).
Haymarket has 3 points fewer homes built after 2000 than the county's 41% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US51153, checked 2026-10-19).
The median Haymarket home was built in 1996 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US5135976, checked 2026-10-19) and the median home has 7.9 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US5135976, checked 2026-10-19).
64% of Haymarket homes are single-family detached, 1% are in two- to four-unit buildings and 3% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US5135976, checked 2026-10-19).
8% of Haymarket homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US5135976, checked 2026-10-19), so beside the 64% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Haymarket has 9 points more detached houses than Prince William County overall (55%) and 13 points fewer five-plus-unit buildings than the county's 16% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US51153, checked 2026-10-19).
Only 8% of Haymarket homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US5135976, 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 Haymarket 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 Haymarket is $173,750 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US5135976, 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: 14F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Prince William County row, 99% heating, PDF pages 127 to 133 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 14F figure is the Prince William County cold-day number a Haymarket heat pump is sized against, so ask the installer to show the system's heating output at 14F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 62% of Haymarket on gas and 37% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Haymarket home has 7.9 rooms and was built around 1996, 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 Haymarket. The public number is the number the contractor quotes from.
No local contractor is named on this door for Haymarket yet. A request from this page goes to the first licensed shop that takes the door.