🏆 Top 10 Wealthiest ZIP Codes in Maryland (Income & Property Value)

 

Here’s a current picture of the top wealthiest ZIP codes in Maryland, based on the most recent income and property value data available (2025–2026 estimates). Rankings can vary depending on whether you look at median household income or home price/value, but many of the same affluent areas appear consistently near the top.

1. 21056 (Gibson Island, Anne Arundel County) – Extremely high home prices and income; often Maryland’s most expensive ZIP.

2. 21405 (Annapolis, Anne Arundel County) – Elite waterfront community with very high property values.

3. 20816 (Bethesda, Montgomery County) – One of Bethesda’s wealthiest and most residential ZIPs.

4. 20817 (Bethesda, Montgomery County) – Another high-income Bethesda area with strong real estate pricing.

5. 20854 (Potomac, Montgomery County) – Potomac is consistently among the richest Washington suburbs.

6. 21737 (Glenelg, Howard County) – High median home prices and household income.

7. 20815 (Chevy Chase/Chevy Chase Village, Montgomery County) – Traditional upscale suburb near DC.

8. 21794 (West Friendship, Howard County) – Estate-style properties and high-income households.

9. 20818 (Cabin John, Montgomery County) – High property values reflecting Washington area wealth.

10. 21153 (Stevenson, Baltimore County) – Solid luxury home market and income metrics.

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💡 Strong Runners / Other Notable Wealthy ZIP Codes

These ZIPs also frequently appear near the top of income or home-value lists in Maryland:

• 21029 (Clarksville, Howard County) – High-end suburb with expensive real estate.

• 20896 (Garrett Park, Montgomery County) – Among the very highest for median household income.

• 20759 (Fulton, Howard County) – Strong income levels in affluent suburb.

• 21723 (Cooksville, Howard County) – Combines high income and rural luxury lifestyle.

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📊 Notes on Metrics

• Median household income is commonly used to rank wealth; ZIPs like 21737, 20896, and 21056 report extremely high median incomes near or above $250,000.

• Home prices also reflect affluence. PropertyShark’s 2025 data shows 21056 leading with a median sale price over $3.1M, followed by affluent suburbs around DC and Chesapeake Bay.