Gaithersburg Home Prices: $598K, Down 1.1% — 4 ZIPs Analyzed (2026)

$598,097. That’s what a typical home in Gaithersburg, MD costs right now — and it’s less than it was a year ago. Prices have slipped 1.1% year over year, a modest pullback after years of gains in the D.C. metro suburbs. Across four ZIP codes, you’ll find a $342,000 spread between the cheapest and most expensive neighborhoods.

Quick answer: The average home price in Gaithersburg, MD is $598,097 as of February 2026, down 1.1% year over year according to Zillow.

Current Home Prices in Gaithersburg

A 1.1% decline means a home worth $605,000 a year ago has lost roughly $7,000 in value. That’s not a crash. It’s a slow drip.

The price ceiling in Gaithersburg sits near $785K in the 20882 ZIP code, while the floor is around $442K in 20879. That range tells you something: Gaithersburg isn’t one market. It’s four very different ones packed into one city boundary.

For a buyer putting 20% down on a $598K home, you’re looking at a $478K mortgage. At a 6.5% rate, that’s roughly $3,020 per month in principal and interest alone — before property taxes and insurance push it higher.

The year-over-year dip puts Gaithersburg in a small but growing camp of D.C. suburbs where sellers no longer set the terms. Buyers have slightly more room to negotiate than they did in 2024.

Gaithersburg Home Prices by Neighborhood

Most Expensive

20882 leads at $784,934 — that’s 31% above the city median and the only ZIP where rent data isn’t tracked, suggesting a market dominated by owner-occupied single-family homes.

20878 comes in at $691,253, about 16% above the city average, with rents at $2,431 per month — the highest in the city.

Most Affordable

20879 is the entry point at $442,167, a full 26% below the city median. Rents here are $2,097, making it one of the few ZIPs where the price-to-rent ratio might favor buying.

20877 sits at $474,035 with the lowest rents in the city at $2,068. If you’re priced out of northern Gaithersburg, this is where to look.

Rent vs Buy in Gaithersburg

Three of Gaithersburg’s four ZIP codes have rent data. Here’s how the numbers stack up.

Mortgage estimates assume 20% down and a 6.5% interest rate, covering principal and interest only. Taxes, insurance, and HOA fees would add to the buy-side cost.

Renting is cheaper across the board. The gap is widest in 20878, where buying costs over $1,000 more per month. In 20879, the gap narrows to just $141 — close enough that equity building and tax benefits could tip the math toward buying over a 5+ year hold.

If you’re staying fewer than five years, renting likely wins in every ZIP code. If you’re staying longer and can handle the higher monthly outflow, buying in 20879 or 20877 gets closer to breakeven.

Population Growth and Migration

Gaithersburg’s population reached 70,686 in 2024, up 1.7% from 69,477 in 2020. Growth has been slow but steady after a brief dip in 2021.

The city added about 1,200 residents over four years. Not exactly a boom.

How does that compare to nearby cities?

Frederick is the standout, growing eight times faster than Gaithersburg. Rockville mirrors Gaithersburg’s pace almost exactly. Baltimore continues to shrink.

For housing demand, Gaithersburg’s modest growth means no population-driven price surge is coming. The city is adding residents, but not fast enough to create the supply squeeze you see in Frederick.

Gaithersburg Housing Market Trends

Here’s how prices moved month by month over the past year.

Prices peaked in April-May 2025 near $606K, then declined every month through February 2026. The total drop from peak: about $7,800, or 1.3%.

The decline hasn’t accelerated. Monthly drops have been small — a few hundred dollars at a time since October. The market isn’t falling off a cliff. It’s deflating slowly.

Both the cheapest and most expensive ZIPs followed the same pattern, which tells you this is a city-wide trend, not isolated to one neighborhood.

Is Gaithersburg a Good Place to Buy in 2026?

The numbers paint a picture of a cooling market with stable fundamentals. Prices are down 1.1%, population is growing (slowly), and the city sits in the Washington, D.C. metro — a region with built-in demand from federal employment and the tech corridor.

For buyers: you have more bargaining power than you did in 2024. Prices have been flat-to-declining for nine months. Sellers who listed in spring 2025 expecting $605K+ are now facing a $598K reality.

For sellers: this isn’t a panic situation. A 1.1% decline is within the margin of seasonal noise in most years. But the trend direction is clear — don’t expect bidding wars.

The most interesting play is in ZIP 20879, where $442K gets you into Gaithersburg at a price point well below the city average. If rents stay above $2,000 in that ZIP, the buy-side economics improve faster there than anywhere else in the city.

Gaithersburg Housing Market Outlook for 2026-2027

The 12-month trend shows a market that peaked in spring 2025 and has been drifting lower since. The pace of decline has flattened since October — prices moved less than $500 between October 2025 and February 2026.

If the current pace continues, expect prices to stay in the $595K-$600K range through mid-2026. A spring bounce is possible — the March-to-May period in 2025 saw prices rise about $1,000 — but there’s no data suggesting a return to the $605K+ range.

The most likely scenario: sideways movement. Not enough downward pressure for a meaningful correction. Not enough demand growth to push prices back up. Buyers waiting for a big dip will likely be disappointed. Buyers who need a home in the next year won’t lose much by acting now.

Similar Markets in MD

If you’re comparing options across Maryland, these cities offer different price points and growth profiles:

• Silver Spring — a close neighbor in Montgomery County with a similar suburban-urban mix
• Rockville — growing at nearly the same pace as Gaithersburg with comparable D.C. commute times
• Frederick — the fastest-growing city nearby, worth checking if you’re open to a longer commute
• Germantown — another Montgomery County option for buyers looking at Gaithersburg’s price range
• Columbia — a planned community in Howard County with its own market dynamics

Frequently Asked Questions

What is the average home price in Gaithersburg?

The average home price in Gaithersburg is $598,097 as of February 2026. That figure represents the Zillow Home Value Index across all four tracked ZIP codes. Individual ZIPs range from $442,167 in 20879 to $784,934 in 20882.

Are home prices going up or down in Gaithersburg?

Prices are down 1.1% year over year. The decline started after a peak near $606K in April-May 2025 and has continued at a slow pace — about $100 to $500 per month since fall 2025. The trend is negative but not steep.

Is it cheaper to rent or buy in Gaithersburg?

Renting is cheaper in every ZIP code with available data. The smallest gap is in 20879, where renting saves about $141 per month compared to a mortgage at 6.5%. In 20878, renting saves over $1,000 per month. These estimates cover principal and interest only — actual buy-side costs are higher when you add taxes and insurance.

What is the most affordable neighborhood in Gaithersburg?

ZIP code 20879 has the lowest median home value at $442,167, which is 26% below the city average. Rents in 20879 are $2,097 per month. The next most affordable is 20877 at $474,035.

Is Gaithersburg growing or shrinking?

Gaithersburg is growing. The population increased from 69,477 in 2020 to 70,686 in 2024 — a gain of 1.7%. Growth dipped briefly in 2021 but has been positive every year since.

Methodology

Home values are based on the Zillow Home Value Index (ZHVI), a smoothed measure of typical home values in the 35th to 65th percentile range. Rent estimates use the Zillow Observed Rent Index (ZORI). Population figures come from the U.S. Census Bureau Population Estimates Program (2020-2024 vintage). All datasets are publicly available. Housing data updated 2026-02-28.