PlainZIP

Middlefield, CT · standard

ZIP Code 06455

Middlesex County, Connecticut - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

3,148
112/sq mi
$104,180
Median income
$388,700
Median home value
43.3%
Bachelor's or higher

The verdict

Middlefield pairs an upper-quartile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 16%
household income, US ZIPs
Top 22%
home value, US ZIPs
112
people per sq mi
95%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 06455 against every reporting US ZIP.

ZIP code 06455 covers 28.1 square miles in Middlefield, Middlesex County, Connecticut (a standard USPS delivery area), with a modest 3,148 residents on file, a density of 112 people per square mile, in the New York time zone.

ZIP 06455 lands in the middle-income range, with a median household income of $104,180 (8% below the Connecticut average), while per-capita income is $69,006. Poverty here runs at 3.9%, with unemployment measured at 4.3%. Median home value sits at $388,700 (10% below the state average), median rent at $1,773 a month, and owner-occupancy at 95.3%.

A solid share of residents have a four-year degree: 43.3% of adults hold a bachelor's degree or higher, the median age is 52.8, and the average commute is 25 minutes. To put 06455 in local context, 10 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Middlesex County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 06455

Top 5 sectors by establishment count in Middlefield, CT

Which industries have the most business establishments in ZIP 06455.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 06455, Middlefield, CT · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

3,148

Population

28.1

Area (sq mi)

112

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 06455?

52.8

Median Age

52.3%

Male

47.7%

Female

6.0%

Foreign-Born

White 89.3%
African American 0.4%
Asian 5.3%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 3.6%
Hispanic or Latino 3.7%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$104,180

Median Household Income

-8% vs state

$69,006

Per Capita Income

3.9%

Poverty Rate

4.3%

Unemployment Rate

25.0 min

Mean Commute Time

How ZIP 06455 ranks nationally

Middlefield, CT household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$104,180 Top 16% higher than 84% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 73.4%
Bachelor's Degree or Higher 43.3%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

1,342

Total Housing Units

1,153

Occupied Units

189

Vacant Units

2.14

Avg Household Size

Occupancy Type

Owner 95.3%
Renter 4.7%

$388,700

Median Home Value

-10% vs state

$1,773

Median Rent

1963

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+5.9%

YoY Change (2024)

200

HPI Index (2000 = 100)

+100%

Total Change Since 2000

Home values in ZIP 06455 have increased 5.9% over the past year (2024). Since 2000, this ZIP has seen +100% cumulative appreciation.

Year Annual Change HPI Index
2020 +2.9% 141
2021 +12.6% 159
2022 +14.4% 182
2023 +3.7% 189
2024 +5.9% 200

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 94 business establishments in ZIP 06455, employing approximately 1,271 people with a combined annual payroll of $92,619,000.

94

Businesses

1,271

Employees

$92.6M

Annual Payroll

11

Industry Sectors

Industry Establishments % of Total
Construction 19 20.2%
Manufacturing 9 9.6%
Professional, scientific, and technical services 9 9.6%
Health care and social assistance 9 9.6%
Other services (except public administration) 9 9.6%
Retail trade 8 8.5%
Administrative and support and waste management and remediation services 6 6.4%
Accommodation and food services 6 6.4%
Finance and insurance 5 5.3%
Wholesale trade 4 4.3%
Educational services 3 3.2%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 06455 vs 06481 →

ZIP 06455 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 06455 ranks #9 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 06455 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 06455 ranks #6 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
06481 Rockfall, CT 1,277 1.6 mi
06450 Meriden, CT 36,493 3.2 mi
06422 Durham, CT 7,388 4.1 mi
06457 Middletown, CT 47,648 3.9 mi
06023 East Berlin, CT 1,296 6.8 mi
06451 Meriden, CT 24,419 5.8 mi
06492 Wallingford, CT 45,241 5.9 mi
06416 Cromwell, CT 14,005 7.4 mi
06037 Berlin, CT 18,565 7.4 mi
06441 Higganum, CT 5,438 8.0 mi

More ZIP Codes in Middlesex County

06457 standard
Middletown, CT
Pop: 47,648
06416 standard
Cromwell, CT
Pop: 14,005
06413 standard
Clinton, CT
Pop: 13,235
06424 standard
East Hampton, CT
Pop: 12,808
06475 standard
Old Saybrook, CT
Pop: 10,242
06480 standard
Portland, CT
Pop: 9,508

Related Areas

Middlesex County Middlefield, CT Connecticut

Frequently Asked Questions

What county is ZIP code 06455 in? ▼
ZIP code 06455 (Middlefield) is located in Middlesex County, Connecticut. Middlesex County contains multiple ZIP codes, see the full list at /counties/middlesex-ct.
What is the population of ZIP code 06455? ▼
ZIP code 06455 in Middlefield, CT has a population of 3,148 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 06455? ▼
The median household income in ZIP 06455 is $104,180, which is 37% above the national average of $76,288.
What is the average home value in ZIP 06455? ▼
The median home value in ZIP 06455 is $388,700, which is 40% above the national average of $278,155.
What is the demographic makeup of ZIP 06455? ▼
The largest racial group in ZIP 06455 is White at 89.3%. Hispanic or Latino residents make up 3.7% of the population.
How many businesses are in ZIP code 06455? ▼
ZIP code 06455 has 94 business establishments employing approximately 1,271 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 06455? ▼
The top industries by establishment count in ZIP 06455 are: Construction (19), Manufacturing (9), Professional, scientific, and technical services (9). There are 11 industry sectors represented in total.
How have home values changed in ZIP code 06455? ▼
According to the FHFA House Price Index, home values in ZIP 06455 increased by 5.9% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 100%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 06455? ▼
In ZIP code 06455, 73.4% of residents aged 25+ have a high school diploma or higher, and 43.3% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 06455? ▼
The mean commute time for workers in ZIP code 06455 is 25.0 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 06455? ▼
In ZIP code 06455, approximately 95.3% of occupied housing units are owner-occupied and 4.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 06455? ▼
The poverty rate in ZIP code 06455 is 3.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.