Stonington, CT ZIP Codes
One ZIP code serves Stonington, Connecticut: 06378. Together they are home to 5,555 residents in 2,708 households. That is more than the 934 people counted inside Stonington borough limits, because these ZIP codes reach past its boundary.
Stonington borough limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 934 |
| Households | 564 |
| Median household income | $109,167 |
| Median home value | $879,800 |
| Median age | 63.1 |
| Median rent | $1,488 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 5,555 |
| Households (sum of ZIP codes) | 2,708 |
| Median household income, range across ZIP codes | $135,714 (06378) to $135,714 (06378) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $135,714 |
| Homeowners | 77.8% |
| Households with kids under 18 | 14.9% |
| Moved in the past year | 12.2% |
| Carrier routes in EDDM2GO's route library | 5 routes, 2,402 homes (1 of 1 ZIP codes) |
Every ZIP code in Stonington
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 06378 | Stonington | 5,555 | 2,708 | $135,714 | $593,400 | 77.8% | 14.9% | 12.2% | 5 | 2,552 | 2% of its land; mailing city |
A ZIP code is listed for Stonington when at least 10% of its land lies inside Stonington borough limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Stonington. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Stonington.
Counties
- New London County — 33 ZIP codes
Price a mailing to Stonington ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Stonington, CT?
- 06378. A ZIP code is listed for Stonington when at least 10% of its land lies inside Stonington borough limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Stonington.
- What is the population of Stonington, CT?
- The Census Bureau counts 934 residents inside Stonington borough limits (ACS 2020–2024). The 1 ZIP code that serve Stonington hold 5,555 residents in all.
- What is the median household income in Stonington, CT?
- $109,167 inside Stonington borough limits, per the Census Bureau. Across its ZIP codes the medians run from $135,714 to $135,714.
- How many carrier routes and mailboxes are in Stonington, CT?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 5 carrier routes reaching 2,402 residential and 144 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.