ZIP codes
477
Maryland ZIP Codes & Demographics
Maryland capital is Annapolis (MD); borders Delaware, Pennsylvania, Virginia, West Virginia. Maryland ZIP codes, demographics, and median household income...
Population
6,170,363
Median household income (avg.)
$111,660
149% of U.S. median
Average home value
$427,350
123% of U.S. median
Average rent
$1,415
Study flag · not official artwork
Quick facts about Maryland
Capital, postal abbreviation, region, and land neighbors — then ZIP demographics below.
- Capital
- Annapolis
- Abbreviation
- MD
- Region
- South
- State bird
- Baltimore oriole
- State flower
- Black-eyed Susan
- Motto
- Fatti maschii, parole femine
- Neighboring states (land borders)
Maryland demographics
Maryland has 477 ZIP codes across 24 counties on US5, with a combined ZIP-area population of about 6,170,363.
Across ZIP codes with age data, the average median age is about 43.5 years.
Among cities represented in this ZIP set, Aspen Hill is among the largest population centers.
Median household income in Maryland
The average median household income across ZIP codes in Maryland is about $111,660 — about 49% above the U.S. median ($75,149).
Among ZIPs with income data, 20759 (Fulton) is near the top at about $250,001, while 20899 (Gaithersburg) is near the bottom at about $23,917.
Housing in Maryland
For housing in Maryland, the average median home value is about $427,350 and the average median rent is about $1,415.
The most populous ZIP is 20906 (Aspen Hill) with about 71,216 residents. Use the table below to compare ZIP codes across the state.
ZIP codes in Maryland
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
Frequently asked questions
What is the capital of Maryland?
The capital of Maryland is Annapolis. See Quick Facts above for abbreviation, region, and neighbors, then browse ZIP demographics below.
What is the abbreviation for Maryland?
Maryland’s USPS postal abbreviation is MD.
What states border Maryland?
Maryland shares land borders with Delaware, Pennsylvania, Virginia, West Virginia. Practice adjacency in the neighboring-states quiz; confirm the list in Quick Facts on this page.
How many ZIP codes are in Maryland?
Maryland has 477 ZIP codes on US5 across 24 counties. Each row links to demographics, median income, and housing for that code.
What are the demographics of Maryland?
Maryland has a combined ZIP-area population of about 6,170,363 across 477 ZIP codes. Browse the table on this page for population, income, and housing by ZIP.
What is the median household income in Maryland?
The average median household income across ZIP codes in Maryland is about $111,660, about 49% above the U.S. median ($75,149). Average median home value is about $427,350. Among ZIPs with data, 20759 (Fulton) is near the top ($250,001) and 20899 (Gaithersburg) is near the bottom ($23,917).
Where can I find ZIP code lists for Maryland?
This page lists ZIP codes in Maryland with population, median household income, and home value. Sort the table or open a ZIP for a full demographics profile.
ZIP rankings in Maryland
Explore curated boards for highest income, largest population, and most affordable home values.
Practice geography