Buyers looking at the Washington, DC suburbs often end up staring at a map, weighing the pros and cons of living in Gaithersburg, MD against options across the Potomac. Maryland and Northern Virginia each come with their own housing markets, tax structures, and commute patterns - and those differences add up fast when you're the one writing the check.
The choice between Gaithersburg, MD and Alexandria, VA comes down to three things: your budget, the kind of home you want, and where you're headed every morning. Both cities give you a path into the District, but the price points and the streetscapes couldn't be more different.
Where These Two Suburbs Sit in the Washington Metro
Gaithersburg sits in Montgomery County, Maryland, roughly 20 miles northwest of downtown Washington, DC. It's a substantial suburban footprint running along the Interstate 270 corridor - the main spine of the Maryland suburbs.
Alexandria is a different animal entirely. It hugs the Potomac River just south of the District, and because it shares that border with Washington, DC, it feels considerably more compressed and urban than what you'll find further out in Maryland. We're talking a condensed, walkable street grid in places, not the spread-out subdivisions you get once you're out on the 270 corridor.
Distance to the District
Physical distance matters more than people admit when they're house-hunting. Some of Alexandria's northern neighborhoods sit just a few miles from the National Mall. Gaithersburg requires a longer trip down into the city - but it puts you closer to the biotech and tech hubs concentrated in Montgomery County, which is worth something if that's where your office is.
Highway Access and Transit Connections
Both locations tie directly into the regional transit network. Gaithersburg relies on the Washington Metropolitan Area Transit Authority (WMATA) Red Line and the MARC commuter rail. Alexandria is served by the Blue and Yellow Metro lines, with multiple stops inside the city limits.
Comparing Home Prices and Property Taxes
The median home sale price in Gaithersburg currently sits around $546,000. Alexandria is noticeably more expensive - mid-2026 data puts median sale prices there somewhere between $736,000 and $758,000, depending on the specific neighborhood.
That gap reflects the land values and housing density on each side of the river. If square footage is your priority, your dollar goes further in Montgomery County than it does in the immediate Virginia suburbs. That's not a knock on Alexandria; it's just math.
Current Sale Prices and Market Speed
Gaithersburg moves quickly. Homes there have been averaging about 47 days on the market, with sellers pulling in roughly 99.5% of their list price, and the area is sitting at about 2.8 months of housing supply. Alexandria also sees strong buyer demand - particularly for townhomes and condos near Metro stations.
Maryland vs Virginia Tax Rates
Don't overlook the tax line when you're running your numbers. In Montgomery County, MD, the 2026 combined base rate for county and state real property tax is roughly $1.152 per $100 of assessed value, before any specific municipal taxes get layered on. The City of Alexandria, VA has set its 2026 real estate tax rate at $1.135 per $100 of assessed value. Review the exact tax assessments on any specific property you're considering - local fees can shift the final bill in either direction.
Neighborhood Types and Architecture
Gaithersburg gives you a wide range: mid-century ramblers, split-levels, and modern master-planned communities. Alexandria is famous for its historic rowhouses, especially the centuries-old architecture clustered near the waterfront.
These cities represent completely different eras of growth. Alexandria was a colonial seaport long before the modern highway system existed. Gaithersburg's big expansion came during the late 20th century as the I-270 corridor built out. You can read the history in the streetscapes.
Master-Planned Communities in Gaithersburg
Planned subdivisions are a defining feature of the Gaithersburg market. The Kentlands neighborhood is probably the best-known example - a New Urbanist community with a mix of Victorian, Colonial, Craftsman, and Neoclassical designs. Other notable developments include Lakelands, Montgomery Village, and Downtown Crown, which offers modern condos and townhomes. If you want something older, historic areas like Realty Park have bungalows and Cape Cods.
Historic Streets and Urban Density in Alexandria
Alexandria's older sections are denser and considerably more walkable. Old Town Alexandria is defined by its historic brick townhomes and cobblestone streets - genuinely some of the most recognizable residential architecture in the DC region. Further north, Potomac Yard is a different story: newer construction, modern townhomes and condo buildings built on reclaimed industrial land.
Getting into Washington, DC
Gaithersburg commuters primarily use Interstate 270 to connect to the Capital Beltway (I-495) and head into the District. Alexandria residents generally rely on Interstate 395 or Route 1 to cross the Potomac.
Both routes get congested during standard morning and evening rush hours - no surprises there. One thing buyers consistently underestimate is the time cost of crossing the river. Which side of the city your office sits on matters more than most people account for before they sign a contract.
The I-270 Corridor and the Red Line
The Shady Grove Metro Station is the northern terminus of the Red Line, giving Gaithersburg residents a direct train ride into downtown DC. For drivers, I-270 is the main artery, with express toll lanes that can help you get around the worst of the congestion.
The I-395 Route and Blue/Yellow Lines
Alexandria has multiple Metro stations, with King Street Station serving as a major transfer point for the Blue and Yellow Lines. Drivers on I-395 or Route 1 have less mileage to cover to reach the District - but traffic on the bridges crossing the Potomac River is a daily reality, not an occasional inconvenience.
Looking Up Local Zoning and Police Data
Both Gaithersburg and Alexandria maintain detailed public records on zoning, future development plans, and local ordinances. A good agent can point you toward these resources, but you should pull the data yourself - don't rely on a summary.
Accessing Police Reports
For local law enforcement data and incident reports, go directly to the source. In Maryland, that means the Gaithersburg Police Department and the Montgomery County Police. In Virginia, the Alexandria Police Department manages public records for the city.
Finding Municipal Parks and Zoning Rules
Both municipalities publish their zoning maps and park facility locations online. The City of Gaithersburg and the City of Alexandria websites lay out park amenities, recreation center hours, and land-use rules. Check those government portals directly to understand what can be built near any property you're seriously considering.
Frequently Asked Questions
Which is more expensive, Gaithersburg, MD or Alexandria, VA?
Alexandria, VA is generally more expensive. The median home sale price in Alexandria recently ranged from $736,000 to $758,000, while Gaithersburg's median sale price sits around $546,000.
What are the property tax differences between Gaithersburg, MD and Alexandria, VA?
The 2026 combined state and county base property tax rate in Montgomery County, MD is roughly $1.152 per $100 of assessed value. The City of Alexandria, VA set its 2026 real estate tax rate at $1.135 per $100 of assessed value. Exact tax bills vary based on municipal fees and individual property assessments.
How do commute times compare from Gaithersburg, MD vs Alexandria, VA to Washington, DC?
Alexandria is physically closer to Washington, DC, with shorter mileage via I-395 or Route 1. Gaithersburg is further out along the I-270 corridor, requiring a longer trip into the city. Both locations offer direct Metro access - via King Street and Shady Grove stations, respectively.
What are the main differences in housing styles and neighborhood types between Gaithersburg, MD and Alexandria, VA?
Gaithersburg features master-planned communities like Kentlands and subdivisions with mid-century single-family homes. Alexandria is known for the historic brick townhomes in Old Town and newer, high-density condo developments in areas like Potomac Yard.
Which real estate market is currently more competitive for buyers, Gaithersburg, MD or Alexandria, VA?
Both markets see strong buyer demand. Gaithersburg recently showed homes selling in an average of 47 days, with sellers receiving about 99.5% of their asking price. Alexandria also moves quickly, especially for properties near Metro stations.
What is the biggest downside to choosing Gaithersburg, MD over Alexandria, VA for homebuyers?
The geographic distance from Washington, DC. Commuting from Gaithersburg means traveling down the often-congested I-270 corridor, whereas Alexandria borders the District directly.
Where can buyers find crime data and police reports for Gaithersburg, MD?
Buyers should review local law enforcement data directly from the Gaithersburg Police Department and the Montgomery County Police. Pulling these public records is the best way to evaluate the safety of Gaithersburg neighborhoods before making a purchase.
What factors influence the cost of living in Gaithersburg, MD?
Housing expenses are a major factor, with median home sale prices sitting around $546,000 and local property taxes adding to the monthly budget. Commuting expenses via the I-270 corridor or the Red Line also play a significant role in the overall cost of living in Gaithersburg.