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Washington Park, NC
2 miles southeast
Median home built 1957 (Washington: 1972); 383 people, under a tenth of Washington's population
Attic insulation in Washington ParkAttic Insulation in Washington, NC
Blown-in attic insulation for Washington, NC, in Beaufort County, plus removal and air sealing.
About Washington and Its Homes
Washington, the Beaufort County seat, stands where the Tar River becomes the Pamlico and was incorporated in 1782. Fires and the Civil War took most of its earliest buildings, so its old streets hold mostly frame houses of the 1880s to the 1930s, with 1950s brick ranches farther north.
Washington, in Beaufort County, fell from 10,061 people in 2020 to 9,910 in 2025 (Census Bureau estimates), on 8.19 square miles. No town in Beaufort County has more people than Washington.
Washington has about 5,300 housing units, 21 percent of Beaufort County's; 46 percent of the city's households own their home.
Washington at a Glance
- County: Beaufort County
- Population: 9,910 (2025), 10,061 (2020), down 1.5%
- Land area: 8.19 square miles (1,210 people each)
- Housing units: about 5,300 (±297)
- Median year built: 1972 (±5); Beaufort County: 1980
- Owner-occupied: 46% (±5); Beaufort County: 70%
- Detached houses: 61% (±4); Beaufort County: 68%
- Attached houses: 8% (±4)
- Apartments: 27% (±5)
- Mobile homes: 5% (±3)
- Climate zone: 3 on both maps
- ENERGY STAR target for Washington attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Washington, 2020 to 2024 (± margin of error).
Washington Homes and Their Attics
One-Room-Deep Frame Houses Near the River
The Washington Historic District's nomination describes streets of mostly white frame houses, many of them plain. It says the usual house after the Civil War stood one or two stories tall and one room deep, with a center hall and a wide porch. Few houses went up there after about 1930. The 2009 county survey adds L-shaped plans and dates most of the district's houses from the 1880s through the 1930s. In a house wired before 1930, knob-and-tube circuits may still carry power. Insulation packed against them is a fire risk, ENERGY STAR warns, so an electrician inspects the wiring first, and any live run is left bare.
Nicholsonville and the Ranches of North Market Street
North of downtown, Nicholsonville was platted in 1893 as one of the town's first suburbs. With the blocks around it, it became the North Market Street Historic District, listed in 2011 for houses built from 1893 to 1961. Its early houses are frame, most under hip roofs, followed by bungalows with dormers. After World War II builders turned to one-story brick ranches, and the 2009 survey singled out the western blocks for their 1950s ranches, many with Colonial Revival details. With a shallow roof pitch, the outer edge of a ranch attic is tight, and ENERGY STAR notes that the eaves can hold very little insulation. Baffles keep the soffit vents open while those edges are filled.
Attic Insulation in Washington
About 50 percent of Washington's homes predate 1970; if your joists show above the insulation, ENERGY STAR says to add more insulation.
Built from 1940 to 1969, about 35 percent of Washington homes often have little insulation.
The Local Climate
Washington's center sits near sea level, 1 mile from NOAA's Washington Wastewater Plant 4 W station, the best match for Washington. The station's 1991 to 2020 normals average about 2,910 heating and 1,810 cooling degree days a year, so at Washington's station, heating needs outweigh cooling.
Homes by Age: What It Means for the Attic
Some 61 percent of Washington housing units are detached single-family houses.
Built from 1970 to 1989, about 30 percent of Washington homes may hold settled fiberglass; check its depth against the joists.
About 60 percent of Washington's housing units predate 1980; nearly all predate the state's 1978 insulation rule too. Some 27 percent of Washington units sit in buildings of two or more homes, where the attic is often shared. Renters hold 54 percent of Washington's occupied homes, so many attic decisions rest with landlords.
Homes by Year Built
- Before 1940: 13% (±3), about 670 units
- 1940s: 9% (±4), about 480 units
- 1950s: 13% (±6), about 690 units
- 1960s: 13% (±4), about 680 units
- 1970s: 13% (±4), about 700 units
- 1980s: 16% (±5), about 860 units
- 1990s: 8% (±3), about 420 units
- 2000s: 7% (±3), about 390 units
- 2010s: 7% (±3), about 350 units
- 2020 or later: under 1%, about 10 units
Air Sealing and Duct Sealing in Washington
In Washington, about 57 percent of homes heat with electricity; where that heat is forced air, ducts often run through the attic.
Air sealing comes first, as the EPA advises: wire and pipe holes, wall tops and soffits.
How Homes Here Are Heated
- Electricity: 57% (±7), about 2,700 households; Beaufort County: 61%
- Piped gas: 39% (±6), about 1,830 households
- Bottled or tank gas: 4% (±2), about 200 households
Power, Gas and Rebates
Washington, an ElectriCities public power town, runs its own electric system. For gas, Washington is in the Beaufort County franchise of Piedmont Natural Gas, and about 39 percent of the city's homes heat with piped gas.
Program to ask about in Washington: ElectriCities energy audits (the city's electric system), home energy audits for member-town customers; ask the city's utility office. Before a job in Washington, check its current terms; the Beaufort County page lists every program.
Attic Insulation Removal in Washington
In a Washington attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Washington attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Washington
Nearest to Washington first.
Chocowinity, NC
4 miles southwest
Median home built 1976 (Washington: 1972); 751 people, under a tenth of Washington's population
Attic insulation in ChocowinityGrimesland, NC
8 miles west
Power from Duke Energy Progress (Washington: a town system); 404 people, under a tenth of Washington's population
Attic insulation in GrimeslandSimpson, NC
13 miles west
Median home built 1983 (Washington: 1972); 409 people, under a tenth of Washington's population
Attic insulation in SimpsonBath, NC
15 miles southeast
Its NOAA station logs about 320 fewer heating degree days than Washington's; 243 people, under a tenth of Washington's population
Attic insulation in Bath
Washington Insulation FAQs
Do I need the Historic Preservation Commission's approval to insulate my attic in Washington's historic district?
Not for the insulation. The city's design standards say a local historic district requires no approval for interior improvements, while exterior changes need a certificate of appropriateness. Washington created its first historic zoning district in August 1978. Vents are the part to ask about. The standards prohibit adding roof elements such as vents that are not historically accurate, and they want roof ventilators on rear slopes, out of view from the street. Talk to the city's preservation staff before any new vent goes in.
After a hurricane, how can I tell if rain got into my Washington attic?
Look at the insulation under the roof: patches that are damp or flattened, or stained by water, are the sign. Hurricane Irene came ashore in August 2011, and a gauge at Washington caught about 13 inches of rain. The Weather Service's radar estimated more than 17 inches over parts of Beaufort County. ENERGY STAR lists damp insulation among the signs of a leaky roof. The roof gets fixed first. Once it is sound, we vacuum out the wet material and blow in new.
Could the old insulation in a Washington attic be vermiculite?
It could: about 35 percent of Washington's homes predate 1960. If a Washington attic holds a pebble-like gray-brown or silver-gold fill, leave it undisturbed: the EPA says vermiculite may contain asbestos.
Does attic insulation in Washington need a permit?
Washington City Hall can say whether Beaufort County Permitting, the city itself or another office handles permits in Washington; ask before work starts.
Helpful Guides
- A coastal town: attic condensation and mold
- An energy audit program from the city's own utility: home energy audits
Sources
Census Bureau figures for Washington, NOAA normals for the Washington Wastewater Plant 4 W station, Washington's municipal electric system (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Washington notes and questions (read October 20, 2026):
- Washington, in The North Carolina Gazetteer (William S. Powell, 2nd ed., UNC Press 2010), NCpedia
- Washington Historic District, National Register nomination (NC HPO)
- Phase I Beaufort County Architectural Survey: Municipalities (Circa, Inc., September 2009), NC HPO
- North Market Street Historic District, National Register nomination (NC HPO, 2011)
- Attic Insulation Project, ENERGY STAR
- Post-World War II and Modern Architecture in Raleigh, North Carolina, 1945-1965, National Register multiple property documentation form (NC HPO)
- Adding Attic Insulation, ENERGY STAR do-it-yourself guide
- About Attic Ventilation, ENERGY STAR do-it-yourself guide
- Washington, NC Historic District Design Standards (City of Washington Historic Preservation Commission, print date June 14, 2021)
- N.C. Gen. Stat. 160D-947, Certificate of appropriateness required
- Historic Preservation Commission Staff in North Carolina, listed by county, as of 2/20/2023 (NC HPO)
- Hurricane Irene, August 26-27, 2011, event review, National Weather Service Newport/Morehead City
Washington, NC
Open in Google Maps (opens in a new tab)Serving Washington, NC
Insulation Pros is an insulation contractor serving North Carolina, Washington and the rest of Beaufort County included.
Reach us
Send the square footage of your Washington attic, or call (336) 870-3893.