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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Middlefield, CT

Middlefield, CT Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 06455StandardMiddlesex3,148860

Timezone(s):Eastern (GMT -05:00)
Population:3,148 (More Details)
Male Population:1,595
Female Population:1,553
Median Age:45
ZIP Codes:1
Area Codes:1
Total Area:439 square miles (county)
Land Area:369 square miles (county)
Water Area:70 square miles (county)

Middlefield, CT Demographic Information *

There is no Census data for the city of MIDDLEFIELD, CT. We have pulled information for the ZIP Code 06455 instead.
Total population3,148
Male population1,595
Female population1,553
Median age (years)45.1
White Population3,013
Black Population26
Indian Population4
Asian Population45
Hawaiian Population0
Hispanic Population74
Median age (Male)44.9
Median age (Female)45.2
Total households1,228
Family households (families)908
Average household size2.56
Average family size2.98
Total housing units1,320
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],