Residential delivery area · Massachusetts
ZIP Code 02558: Onset, MA
ZIP code 02558 is in Onset, Massachusetts, entirely in Plymouth County (Census 2020 ZIP-county file). About 1,700 people live there (Census Bureau, ACS 2020-2024). Median household income is $79,598 (Census Bureau, ACS 2020-2024). By Census place, 70% of its land lies in Onset (a census-designated place); 30% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- Town
- Onset · its only residential ZIP
- County
- Plymouth County
- Census places
- Onset census-designated place
- Metro area
- Boston-Cambridge-Newton, MA-NH
- House district
- MA-9 119th Congress
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 1.1 sq mi · 1,552 people per sq mi
Where is ZIP code 02558?
02558 centers on 41.746°, -70.652° and covers 1.1 square miles of land plus 1.1 of water. It borders 3 ZIP codes: 02538, 02571, 02532.
The map draws ZIP code areas only. For the streets inside 02558, 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 02558 compare with the rest of Plymouth County?
| Measure | 02558 | In Plymouth County | In MA |
|---|---|---|---|
| People (ACS 2020-2024) | 1,734 | 33rd of 36 | 437th of 539 |
| Median household income | $80k | not ranked | not ranked |
| Median home value | $442k | 28th of 32 | 305th of 449 |
02558's median household income is not ranked: its 90% margin of error (±$55,173) is more than a quarter of the figure ($79,598). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 82% of 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 02558?
The 2020 Census counted 2,178 people in 02558; the ACS, which samples households over 2020-2024, estimates 1,734. Between the 2010 and 2020 censuses its population grew 1.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 1,734±738 (90% margin)
- 2020 Census count
- 2,178+1.0% since 2010 (2,156)
- Households
- 891
- Median age
- 56.5
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 02558?
Of the 1,734 people the ACS estimates in 02558, 17.0% are under 18 and 29.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (72.1%), then Hispanic or Latino (18.9%).
- Under 1817.0%
- 18 to 6453.6%
- 65 and older29.4%
- White, not Hispanic72.1%
- Hispanic or Latino18.9%
- Other or two or more8.9%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
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 02558 earn?
Median household income is $79,598 (ACS 2020-2024). It is not measurably different from 2015-2019 ($55,615 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $79,598±$55,173
- Income per person
- $51,723
- Below the poverty line
- 7.2%
- Unemployed (of the labor force)
- 10.9%
- Adults 25+ with a bachelor's degree
- 20.0%
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 02558?
FHFA's house price index for 02558, built from repeat sales and appraisals of the same homes, rose 114% from 2015 to 2025 and rose 61% from 2020 to 2025, and moved −8.1% in 2025.
- Median home value (owners' estimate)
- $441,700
- Median gross rent
- $1,468
- Homes owned by their occupants
- 87.1%
- Housing units
- 1,602
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 02558?
38 business establishments had a location in this ZIP code in 2023, 6 fewer than in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services9
- Construction4
- Retail trade4
- Other services (except public administration)4
- Professional, scientific, and technical services3
- Administrative and support and waste management and remediation services3
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 02558?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 02538 | East Wareham | 4,074 | $124k | 2.2 mi |
| 02571 | Wareham | 11,258 | $94k | 2.5 mi |
| 02532 | Buzzards Bay | 13,267 | $88k | 2.9 mi |
| 02553 | Monument Beach | 30 | – | 2.7 mi (near) |
| 02559 | Pocasset | 2,802 | $91k | 4.3 mi (near) |
| 02534 | Cataumet | 1,369 | $137k | 5.7 mi (near) |
| 02738 | Marion | 5,310 | $143k | 5.8 mi (near) |
| 02576 | West Wareham | 4,168 | $63k | 6.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.