Updated May 2026 · Redfin · 3-month window
20171 Real Estate Market Update: Herndon, VA, May 2026
The latest housing-market numbers for ZIP code 20171 in Herndon, Virginia, for May 2026, from the Redfin Data Center. ZIP-level figures are a rolling three-month window.
| Metric | Value | MoM | YoY |
|---|---|---|---|
| Median sale price | $805K | ▲ +12.2% | ▲ +2.9% |
| Days on market | 25 | ▼ -10.7% | ▲ +8.7% |
| Homes for sale | 105 | ▲ +6.1% | ▲ +28.0% |
| Sale-to-list | 101.1% | ▲ +0.8% | ▼ -0.4% |
| Homes sold | 130 | ▲ +30.0% | ▼ -12.8% |
Figures from the Redfin Data Center ZIP-code tracker (rolling 3-month window, not seasonally adjusted). Verify against your MLS before posting. Not a valuation for a specific home.
What the 20171 numbers say
Prices in Herndon's 20171 ZIP are still climbing. The median sale price reached $805,000, up 2.9% year over year. Homes here move fast: a typical listing goes under contract in about 25 days, and sellers are getting 101.1% of list price.
Based on 130 recent sales, 20171 is currently an active market.
What this means if you sell in 20171
Use these figures to set expectations early. Lead a listing appointment with the median price and the 25-day pace, show the year-over-year direction, and frame 20171 as an active market. Buyers and sellers trust an agent who knows their exact ZIP, not just the metro average.
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Build the Herndon post →Frequently asked: the 20171 housing market
- What is the median home price in ZIP 20171 (Herndon, VA)?
- As of May 2026, the median sale price in ZIP 20171 is $805,000 (+2.9% year over year), per the Redfin Data Center. Figures are a rolling 3-month window for this ZIP code.
- Is ZIP 20171 a buyer's or seller's market right now?
- ZIP 20171 is currently an active market, based on a 101.1% sale-to-list ratio, about 25 days on market for May 2026.
- How long do homes take to sell in ZIP 20171?
- A typical listing in 20171 goes under contract in about 25 days as of May 2026. Always verify against your local MLS before quoting figures to clients.
- Where does this 20171 market data come from?
- All figures come from the Redfin Data Center ZIP-code market tracker, a rolling 3-month window refreshed monthly. LOKAL turns them into a ready-to-post carousel, story and square graphic. LOKAL is not affiliated with Redfin.
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Data: Redfin · Redfin Data Center (ZIP-code market tracker). Figures are a ZIP-level 3-month snapshot, not a valuation for a specific home.