Middlefield, CT ZIP code
The ZIP code for Middlefield, Connecticut is 06455. It is in Middlesex County.
- Population in these ZIPs
- 2,480
- Avg. median income
- $104,200population-weighted
- Typical home value
- $428,000population-weighted
- Metro area
- Hartford-West Hartford-East Hartford, CT
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Middlefield, CT ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 06455 | 2,480 | $104,180 | $428,000 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Middlefield
- Rockfall 2 mi
- Durham 4 mi
- Middletown 4 mi
- Meriden 5 mi
- East Berlin 7 mi
- Berlin 7 mi
- Cromwell 8 mi
- Higganum 8 mi
- Northford 9 mi
- Portland 9 mi
- Middle Haddam 9 mi
- Cobalt 10 mi
Frequently asked questions
What is the ZIP code for Middlefield, CT?
The ZIP code for Middlefield, CT is 06455.
What county is Middlefield, Connecticut in?
Middlefield ZIP codes are in Middlesex County.