ZIP Code 02638
standardSource:
Dennis · Barnstable County · Massachusetts
- Population
- 3,207
- Median income
- $108,726
- Median home value
- $827,900
- Bachelor's or higher
- 45.9%
- Land area
- 15.4 sq mi
209/sq mi
▲ 43% vs US
higher than 86% of US ZIPs
▲ 198% vs US
higher than 96% of US ZIPs
Median age 60.5
New York
ZIP code 02638 in Dennis, Massachusetts has a population of 3,207. The median household income is $108,726, which is 43% above the national average. Median home value is $827,900, 198% above the US average. 45.9% of residents hold a bachelor's degree or higher.
ZIP code 02638 is classified by USPS as a standard delivery area and covers roughly 15.4 square miles in Dennis, Barnstable County, Massachusetts. The area is home to 3,207 residents, producing a population density of 209 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 02638 against Massachusetts and the nation.
On the economic side, the median household income for ZIP 02638 sits at $108,726 (6% below the Massachusetts average), while per-capita income is $63,789. The poverty rate stands at 3.3% and the unemployment rate at 1.9%. On housing, the median home value is $827,900 (38% above the state average) with median rent at $1,208 per month, and 87.1% of occupied units are owner-occupied, a direct signal of whether 02638 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 45.9% of adults hold a bachelor's degree or higher, the median age is 60.5, and the average commute is —. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Barnstable County, so you can benchmark 02638 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 02638
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 02638.
- Accommodation and food services
Accommodation and food services
16 establishments
- Retail trade
Retail trade
14 establishments
- Construction
Construction
12 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
10 establishments
- Health care and social assistance
Health care and social assistance
8 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 02638, Dennis, MA · 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
3,207
Population
15.4
Area (sq mi)
209
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 02638?
60.5
Median Age
42.7%
Male
57.3%
Female
6.7%
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?
$108,726
Median Household Income
-6% vs state
$63,789
Per Capita Income
3.3%
Poverty Rate
1.9%
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?
2,932
Total Housing Units
1,440
Occupied Units
1,492
Vacant Units
2.26
Avg Household Size
Occupancy Type
$827,900
Median Home Value
+38% vs state
$1,208
Median Rent
1976
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
+8.6%
YoY Change (2024)
351
HPI Index (2000 = 100)
+251%
Total Change Since 2000
Home values in ZIP 02638 have increased 8.6% over the past year (2024). Since 2000, this ZIP has seen +251% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +5.1% | 218 |
| 2021 | +15.5% | 252 |
| 2022 | +20.5% | 303 |
| 2023 | +6.5% | 323 |
| 2024 | +8.6% | 351 |
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 91 business establishments in ZIP 02638, employing approximately 437 people with a combined annual payroll of $27,632,000.
91
Businesses
437
Employees
$27.6M
Annual Payroll
11
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Accommodation and food services | 16 | 17.6% |
| Retail trade | 14 | 15.4% |
| Construction | 12 | 13.2% |
| Professional, scientific, and technical services | 10 | 11.0% |
| Health care and social assistance | 8 | 8.8% |
| Other services (except public administration) | 7 | 7.7% |
| Real estate and rental and leasing | 5 | 5.5% |
| Administrative and support and waste management and remediation services | 5 | 5.5% |
| Arts, entertainment, and recreation | 4 | 4.4% |
| Wholesale trade | 3 | 3.3% |
| Finance and insurance | 3 | 3.3% |
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 02638 vs 02664 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 02664 | South Yarmouth, MA | 9,371 | 4.0 mi |
| 02641 | East Dennis, MA | 532 | 2.5 mi |
| 02675 | Yarmouth Port, MA | 6,577 | 2.7 mi |
| 02660 | South Dennis, MA | 6,261 | 2.7 mi |
| 02670 | West Dennis, MA | 1,307 | 5.1 mi |
| 02637 | Cummaquid, MA | 253 | 4.5 mi |
| 02639 | Dennis Port, MA | 2,875 | 5.5 mi |
| 02673 | West Yarmouth, MA | 8,402 | 5.9 mi |
| 02630 | Barnstable, MA | 1,850 | 6.0 mi |
| 02631 | Brewster, MA | 9,679 | 6.5 mi |
More ZIP Codes in Barnstable County
Related Areas
Frequently Asked Questions
What county is ZIP code 02638 in? ▼
What is the population of ZIP code 02638? ▼
What is the median household income in ZIP 02638? ▼
What is the average home value in ZIP 02638? ▼
What is the demographic makeup of ZIP 02638? ▼
How many businesses are in ZIP code 02638? ▼
What are the main industries in ZIP code 02638? ▼
How have home values changed in ZIP code 02638? ▼
What is the education level in ZIP code 02638? ▼
What percentage of residents own vs. rent in ZIP 02638? ▼
What is the poverty rate in ZIP code 02638? ▼
ZIP Code Research Guides
Official Data Resources for Dennis, MA
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.