Residential delivery area · Massachusetts
ZIP Code 02660: South Dennis, MA
ZIP code 02660 is in South Dennis, Massachusetts, entirely in Barnstable County (Census 2020 ZIP-county file). About 6,400 people live there (Census Bureau, ACS 2020-2024). Median household income is $93,386 (Census Bureau, ACS 2020-2024). By Census place, its land lies in South Dennis (54%), East Dennis (27%) and West Dennis (13%), and 6% in smaller places.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- South Dennis · its only residential ZIP
- County
- Barnstable County
- Census places
- South Dennis (54%) census-designated place; East Dennis (27%) census-designated place; West Dennis (13%) census-designated place
- Metro area
- Barnstable Town, MA
- House district
- MA-9 119th Congress
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 8.4 sq mi · 762 people per sq mi
Where is ZIP code 02660?
02660 centers on 41.709°, -70.157° and covers 8.4 square miles of land plus 0.6 of water. It borders 8 ZIP codes: 02638, 02639, 02664, 02641, 02670, 02675, 02645, 02631.
The map draws ZIP code areas only. For the streets inside 02660, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 02660 compare with the rest of Barnstable County?
| Measure | 02660 | In Barnstable County | In MA |
|---|---|---|---|
| People (ACS 2020-2024) | 6,381 | 16th of 48 | 314th of 539 |
| Median household income | $93k | 15th of 24 | 284th of 406 |
| Median home value | $560k | 26th of 33 | 210th of 449 |
Its median household income is higher than in 76% of U.S. residential ZIP codes, and it is denser than 76% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 02660?
The 2020 Census counted 6,662 people in 02660; the ACS, which samples households over 2020-2024, estimates 6,381. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 6,381±674 (90% margin)
- 2020 Census count
- 6,662
- Households
- 3,032
- Median age
- 61.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 02660?
Of the 6,381 people the ACS estimates in 02660, 8.4% are under 18 and 41.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (90.5%).
- Under 188.4%
- 18 to 6449.9%
- 65 and older41.8%
- White, not Hispanic90.5%
- Black, not Hispanic3.2%
- Hispanic or Latino3.2%
- Other or two or more2.9%
- Asian, not Hispanic0.3%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 02660 earn?
Median household income is $93,386 (ACS 2020-2024), the 15th highest of the 24 ranked ZIP codes in Barnstable County.
- Median household income
- $93,386±$11,364
- Income per person
- $52,512
- Below the poverty line
- 8.1%
- Unemployed (of the labor force)
- 3.9%
- Adults 25+ with a bachelor's degree
- 42.0%
- Adjusted gross income per tax return, 2022
- $85,7043,650 returns; wages 54% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 02660?
FHFA's house price index for 02660, built from repeat sales and appraisals of the same homes, rose 110% from 2015 to 2025 and rose 63% from 2020 to 2025, and moved +2.6% in 2025.
- Median home value (owners' estimate)
- $559,600
- Median gross rent
- $1,365
- Homes owned by their occupants
- 78.3%
- Housing units
- 4,610
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 02660?
241 business establishments had a location in this ZIP code in 2023, 11 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction53
- Administrative and support and waste management and remediation services36
- Retail trade33
- Health care and social assistance21
- Accommodation and food services18
- Other services (except public administration)18
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 02660?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 02638 | Dennis | 3,253 | $109k | 2.6 mi |
| 02639 | Dennis Port | 3,808 | $73k | 3.0 mi |
| 02664 | South Yarmouth | 9,949 | $82k | 3.0 mi |
| 02641 | East Dennis | 316 | – | 3.1 mi |
| 02670 | West Dennis | 1,087 | $87k | 3.4 mi |
| 02675 | Yarmouth Port | 7,297 | $111k | 3.9 mi |
| 02645 | Harwich | 11,288 | $104k | 4.9 mi |
| 02631 | Brewster | 10,061 | $102k | 5.4 mi |
| 02671 | West Harwich | 818 | $105k | 3.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.