Arlington / Woodbridge
Woodbridge has 43,945 residents (give or take 2,691) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US5187312, checked 2026-10-19), about 4,871 people per square mile.
Woodbridge is about 18 miles from the Census center point for Arlington in a straight line and covers 9.022 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 Woodbridge that is 22191 (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 Woodbridge is $104,741 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US5187312, 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.
4,871 people per square mile puts Woodbridge in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
36% of Woodbridge homes are single-family detached, 4% are in two- to four-unit buildings and 37% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US5187312, checked 2026-10-19).
46% of Woodbridge homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US5187312, checked 2026-10-19), so beside the 36% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Woodbridge has 19 points fewer detached houses than Prince William County overall (55%) and 21 points more 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).
46% of Woodbridge homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US5187312, 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 14,324 occupied homes in Woodbridge, 42% heat with natural gas, 4% with heating oil, 51% with electricity and 3% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US5187312, checked 2026-10-19).
Electricity already heats 51% of Woodbridge homes, ahead of gas at 42%, and a home on electric baseboard sees the biggest bill change from a heat pump because it replaces resistance heat one for one.
Woodbridge has about the Prince William County oil share of 2% and 11 points more 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).
No electric utility is on file for Woodbridge on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Woodbridge has 15,119 housing units, 1% built before 1940 and 43% before 1980, with 33% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US5187312, checked 2026-10-19).
Woodbridge has 8 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 Woodbridge home was built in 1986 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US5187312, checked 2026-10-19) and the median home has 5.8 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US5187312, checked 2026-10-19).
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 Woodbridge 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 for the heat-loss calculation room by room; the median Woodbridge home has 5.8 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 Woodbridge. The public number is the number the contractor quotes from.
No local contractor is named on this door for Woodbridge yet. A request from this page goes to the first licensed shop that takes the door.