🏆 Top 10 Wealthiest ZIP Codes in Connecticut

 

Here’s a current picture of the top 10 wealthiest ZIP codes in Connecticut, based on income and other wealth indicators (like median household income, average adjusted gross income, and other economic data). Most of Connecticut’s richest ZIPs are in Fairfield County, particularly the towns along the Long Island Sound. Click on the zip codes you'd like to see.

Rank • ZIP Code — City/Town — General Indicator of Wealth

1. 06883 – Weston (highest median household income in CT)

2. 06820 – Darien (very high-income area near NYC)

3. 06870 – Old Greenwich (coastal Greenwich area)

4. 06903 – Stamford (wealthiest part of Stamford area)

5. 06897 – Wilton (affluent Fairfield County suburb)

6. 06890 – Southport (high household incomes, often wealthy real estate)

7. 06878 – Riverside (part of Greenwich, high adjusted gross income)

8. 06840 – New Canaan (very affluent town)

9. 06880 – Westport (coastal and wealthy community)

10. 06831 – Greenwich proper (one of the highest income ZIPs by IRS data)

👉 Note: Different data sources measure “wealth” slightly differently (adjusted gross income, median household income, home values, etc.), but these ZIP codes consistently appear near the top across the major datasets.

Where wealth is concentrated:
Fairfield County — especially its coastal and NYC-commuter towns like Darien, Greenwich, and New Canaan — dominates the list. These areas rank among the highest in both income and property values statewide.