ZIP Code 06419
standardSource:
Killingworth · Middlesex County · Connecticut
- Population
- 6,525
- Median income
- $140,655
- Median home value
- $446,200
- Bachelor's or higher
- 55.4%
- Land area
- 91.5 sq mi
71/sq mi
▲ 84% vs US
higher than 95% of US ZIPs
▲ 60% vs US
higher than 83% of US ZIPs
Median age 53.3
New York
ZIP code 06419 in Killingworth, Connecticut has a population of 6,525. The median household income is $140,655, which is 84% above the national average. Median home value is $446,200, 60% above the US average. 55.4% of residents hold a bachelor's degree or higher.
ZIP code 06419 is classified by USPS as a standard delivery area and covers roughly 91.5 square miles in Killingworth, Middlesex County, Connecticut. The area is home to 6,525 residents, producing a population density of 71 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 06419 against Connecticut and the nation.
On the economic side, the median household income for ZIP 06419 sits at $140,655 (24% above the Connecticut average), while per-capita income is $77,833. The poverty rate stands at 3.0% and the unemployment rate at 3.8%. On housing, the median home value is $446,200 (3% above the state average) with median rent at — per month, and 96.7% of occupied units are owner-occupied, a direct signal of whether 06419 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 55.4% of adults hold a bachelor's degree or higher, the median age is 53.3, and the average commute is —. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Middlesex County, so you can benchmark 06419 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 06419
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 06419.
- Professional, scientific, and technical services
Professional, scientific, and technical services
23 establishments
- Construction
Construction
22 establishments
- Administrative and support and waste management and remediation services
Administrative and support and waste management and remediation services
12 establishments
- Health care and social assistance
Health care and social assistance
12 establishments
- Other services (except public administration)
Other services (except public administration)
11 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, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 06419, Killingworth, CT · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
6,525
Population
91.5
Area (sq mi)
71
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 06419?
53.3
Median Age
50.0%
Male
50.0%
Female
0.7%
Foreign-Born
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?
$140,655
Median Household Income
+24% vs state
$77,833
Per Capita Income
3.0%
Poverty Rate
3.8%
Unemployment Rate
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
2,775
Total Housing Units
2,516
Occupied Units
259
Vacant Units
2.48
Avg Household Size
Occupancy Type
$446,200
Median Home Value
+3% vs state
1987
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
+10.7%
YoY Change (2024)
199
HPI Index (2000 = 100)
+99%
Total Change Since 2000
Home values in ZIP 06419 have increased 10.7% over the past year (2024). Since 2000, this ZIP has seen +99% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +1.6% | 132 |
| 2021 | +12.5% | 148 |
| 2022 | +14.3% | 169 |
| 2023 | +6.2% | 180 |
| 2024 | +10.7% | 199 |
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 119 business establishments in ZIP 06419, employing approximately 722 people with a combined annual payroll of $39,342,000.
119
Businesses
722
Employees
$39.3M
Annual Payroll
11
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 23 | 19.3% |
| Construction | 22 | 18.5% |
| Administrative and support and waste management and remediation services | 12 | 10.1% |
| Health care and social assistance | 12 | 10.1% |
| Other services (except public administration) | 11 | 9.2% |
| Accommodation and food services | 9 | 7.6% |
| Retail trade | 8 | 6.7% |
| Educational services | 4 | 3.4% |
| Wholesale trade | 3 | 2.5% |
| Transportation and warehousing | 3 | 2.5% |
| Finance and insurance | 3 | 2.5% |
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 06419 vs 06441 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 06441 | Higganum, CT | 5,438 | 5.9 mi |
| 06443 | Madison, CT | 18,269 | 3.7 mi |
| 06412 | Chester, CT | 3,994 | 5.3 mi |
| 06417 | Deep River, CT | 4,629 | 6.1 mi |
| 06413 | Clinton, CT | 13,235 | 6.1 mi |
| 06438 | Haddam, CT | 2,550 | 6.6 mi |
| 06437 | Guilford, CT | 22,375 | 7.0 mi |
| 06442 | Ivoryton, CT | 2,745 | 7.3 mi |
| 06498 | Westbrook, CT | 6,963 | 7.7 mi |
| 06422 | Durham, CT | 7,388 | 7.9 mi |
More ZIP Codes in Middlesex County
Related Areas
Frequently Asked Questions
What county is ZIP code 06419 in? ▼
What is the population of ZIP code 06419? ▼
What is the median household income in ZIP 06419? ▼
What is the average home value in ZIP 06419? ▼
What is the demographic makeup of ZIP 06419? ▼
How many businesses are in ZIP code 06419? ▼
What are the main industries in ZIP code 06419? ▼
How have home values changed in ZIP code 06419? ▼
What is the education level in ZIP code 06419? ▼
What percentage of residents own vs. rent in ZIP 06419? ▼
What is the poverty rate in ZIP code 06419? ▼
ZIP Code Research Guides
Official Data Resources for Killingworth, CT
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.