Prince William County · Gainesville
The median sale price, $759,900, is 24% above Prince William's median of $611K. Prices were down 1.3% from a year earlier. Homes took 14 days on average to go under contract, faster than the county (24 days), the 3rd-fastest of 10 Prince William ZIP codes with enough sales to compare. Sellers received 100.3% of their original asking price — close to asking.
Leans to sellers
Median sale price, Q2 2026
Source: Bright MLS Industry Watch, Q2 2026 (data as of July 10, 2026). Figures cover the part of the ZIP code inside Prince William County.
Homes listed for sale in 20155,
Realtor.com residential listings data · updated monthly · See the Price-Cut Index
Monthly listing numbers for 20155 load here from Realtor.com data. I can also pull today's listings from Bright MLS for you.
All of Prince William County in September 2026: 977 homes for sale (+19% vs. a year ago), 46% with a price cut, 35 median days on market.
On the median $759,900 home, that's about $7,120 a year before any town or district tax. Bills are due July 15 and Dec. 7, 2026.
The tax on a listing is the current owner's bill, which may include senior tax relief that ends when they sell. Work out a home's real tax →
Leans to sellers. Homes sold at or a little above their first asking price. Good homes still move, but buyers aren't bidding wildly.
Before you fall in love
Prince William approved new boundaries on Feb. 4, 2026 — about 2,660 students reassigned. Woodbridge-area changes start in 2026-27; the rest in 2027-28.
PWCS boundary news ↗The $0.865 county rate is joined by a $0.07 fire & rescue levy and a $0.002 pest levy, plus a $84 trash fee and $67.28 stormwater fee for single-family homes.
Work out your real tax bill →The 2,100-acre data center plan near Manassas Battlefield ended in 2026 after courts voided its rezoning and the developers dropped their appeals.
Virginia Business report ↗Under Virginia's disclosure law the seller makes no promises about the home's condition, flood zones, airport noise, septic or radon. Inspections and your own checks protect you.
Virginia Code § 55.1-703 ↗You can cancel within 3 days of receiving the association's resale certificate. Read it for fees, special assessments and rental limits.
Virginia Code § 55.1-2312 ↗Nearby
All 61 Northern Virginia ZIP codes → · Where prices are being cut →
Questions people ask
Homes in Gainesville, VA 20155 sold for a median of $759,900 from April–June 2026, down 1.3% from a year earlier (Bright MLS). Prince William's median was $611,000.
Homes took 14 days on average to go under contract in Q2 2026, compared with 24 days across Prince William County. Sellers received 100.3% of their original asking price.
Based on Q2 2026 sales, 20155 is a seller's market. Homes sold at or a little above their first asking price. Good homes still move, but buyers aren't bidding wildly. Conditions change street by street, so ask me for the latest Bright MLS numbers before you price or offer.
Most of 20155 is in Prince William County, where the 2026 rate is $0.937 per $100 of assessed value, about $7,120 a year on a $759,900 home. Bills are due July 15 and Dec. 7, 2026.
Check the school boundary for the exact address, the flood map, any HOA rules and fees, and planned roads or buildings nearby. I check these for every home we look at.
Contact
Tell me a little about what you're looking for. I'll reply personally, usually within one business day.
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