20878 — Gaithersburg, MD Home Values
Typical home value $703,807 as of June 2026 · 93rd of 320 in Washington-Arlington-Alexandria, DC-VA-MD-WV
Blue: typical home value (Zillow ZHVI) in ZIP code 20878, June 2021 to June 2026. This page shows observed data only; no forecast.
How 20878 compares in the Washington-Arlington-Alexandria, DC-VA-MD-WV area
ZIP code 20878 (Gaithersburg, MD) has a typical home value of $703,807 as of June 2026, ranking 93rd of 320 ZIP codes tracked in the Washington-Arlington-Alexandria, DC-VA-MD-WV area, more expensive than about 71% of ZIP codes in the metro. Prices here have moved -1.4% over the trailing 12 months. Over the past five years, the typical value in this ZIP code has changed +13.4%, from $620,444 in June 2021 to $703,807 in June 2026. Against observed rent, the typical home here sells for 24.9× the annual rent ($2,351/mo), a common way to gauge whether buying looks cheap relative to renting in this ZIP code.
Every figure above is observed Zillow data. Sialim's forecasting engine works at the metro level; see the Washington-Arlington-Alexandria, DC-VA-MD-WV forecast for a modeled outlook, or browse the full ranked list of ZIP codes in Washington.
Population and demographics
ZIP code 20878 has a population of 65,236, per the Census Bureau's American Community Survey 5-year estimate. By race and ethnicity: 45.8% White, 26.9% Asian, 12.4% Hispanic or Latino, 9.9% Black or African American, 4.3% two or more races, 0.5% another race, and 0.2% American Indian or Alaska Native.
Nearby public schools
| School | Address | Distance |
|---|---|---|
| Quince Orchard High | 15800 Quince Orchard Rd, Gaithersburg, MD | 0.3 mi |
| Rachel Carson Elementary | 100 Tschiffely Square Rd, Gaithersburg, MD | 0.4 mi |
| Lakelands Park Middle | 1200 Main St, Gaithersburg, MD | 1 mi |
Distance is straight-line from the ZIP code's center; driving distance will be longer. School attendance is set by district boundaries, not proximity. Confirm which school a specific address is zoned for with the local school district. Source: National Center for Education Statistics.
Frequently asked questions
What is the typical home value in ZIP code 20878?
$703,807 as of June 2026, the latest month Zillow has published observed data for.
Is 20878 an expensive ZIP code in the Washington-Arlington-Alexandria, DC-VA-MD-WV area?
20878 ranks 93rd of 320 ZIP codes in the Washington-Arlington-Alexandria, DC-VA-MD-WV area by typical home value, more expensive than about 71% of ZIP codes in the metro.
How much have home values in 20878 changed over the past year?
-1.4% over the trailing 12 months, from observed Zillow data.
Is it cheaper to buy or rent in ZIP code 20878?
The typical home price is 24.9× the observed annual rent in this ZIP code ($2,351/mo). Lower multiples favor buying over renting, all else equal.
What is the population of ZIP code 20878?
65,236, per the US Census Bureau's American Community Survey 5-year estimate.
What are the closest public schools to ZIP code 20878?
Quince Orchard High (0.3 mi), Rachel Carson Elementary (0.4 mi), Lakelands Park Middle (1 mi), by straight-line distance from the ZIP code's center. School attendance is set by district boundaries, not proximity. Confirm assignment with the local school district.
Is this page showing a forecast for 20878?
No. Every number on this page is observed Zillow data as of June 2026, not a forecast. Sialim's forecasting engine runs at the metro level; see the Washington-Arlington-Alexandria, DC-VA-MD-WV forecast for a modeled outlook.
ZIP-level values shown here are observed Zillow data, not forecasts. Sialim's forecasting engine works at the metro level today; ZIP-level forecasts are planned for Sialim Pro. Data © Zillow, via Zillow Research.