Residential delivery area · Massachusetts
ZIP Code 02143: Somerville, MA
ZIP code 02143 is in Somerville, Massachusetts, entirely in Middlesex County (Census 2020 ZIP-county file). About 26,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of Somerville's 3 residential ZIP codes. Median household income is $130,753 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Somerville · 3 residential ZIPs
- County
- Middlesex County
- Census places
- Somerville
- Neighborhoods
- Inner Belt, Prospect Hill, Spring Hill, Union Square GeoNames
- Metro area
- Boston-Cambridge-Newton, MA-NH
- House district
- MA-7 119th Congress
- State
- Massachusetts
- Time zone
- Eastern
- Land area
- 1.5 sq mi · 16,524 people per sq mi
Where is ZIP code 02143?
02143 centers on 42.381°, -71.097° and covers 1.5 square miles of land. It borders 7 ZIP codes: 02145, 02141, 02139, 02129, 02144, 02138, 02140.
The map draws ZIP code areas only. For the streets inside 02143, 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); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 02143 compare with the rest of Somerville?
| Measure | 02143 | In Somerville | In Middlesex County | In MA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 25,513 | 2nd of 3 | 27th of 83 | 93rd of 539 |
| Median household income | $131k | 2nd of 3 | 49th of 78 | 129th of 406 |
| Median home value | $927k | 2nd of 3 | 29th of 80 | 55th of 449 |
Its median household income is higher than in 93% of U.S. residential ZIP codes, and it is denser than 99% 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 02143?
The 2020 Census counted 26,022 people in 02143; the ACS, which samples households over 2020-2024, estimates 25,513. Between the 2010 and 2020 censuses its population grew 6.2% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 25,513
- 2020 Census count
- 26,022+6.2% since 2010 (24,514)
- Households
- 12,283
- Median age
- 32.1
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 02143?
Of the 25,513 people the ACS estimates in 02143, 8.3% are under 18 and 9.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (68.3%), then Asian (not Hispanic) (10.1%).
- Under 188.3%
- 18 to 6482.6%
- 65 and older9.0%
- White, not Hispanic68.3%
- Asian, not Hispanic10.1%
- Hispanic or Latino9.8%
- Other or two or more7.4%
- Black, not Hispanic4.4%
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 02143 earn?
Median household income is $130,753 (ACS 2020-2024), the 49th highest of the 78 ranked ZIP codes in Middlesex County. It is not measurably different from 2015-2019 ($120,704 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $130,753±$13,992
- Income per person
- $80,068
- Below the poverty line
- 8.9%
- Unemployed (of the labor force)
- 2.9%
- Adults 25+ with a bachelor's degree
- 75.9%
- Adjusted gross income per tax return, 2022
- $108,47614,860 returns; wages 83% 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 02143?
FHFA's house price index for 02143, built from repeat sales and appraisals of the same homes, rose 84% from 2015 to 2025 and rose 29% from 2020 to 2025, and moved +7.1% in 2025.
- Median home value (owners' estimate)
- $926,800
- Median gross rent
- $2,475
- Homes owned by their occupants
- 31.0%
- Housing units
- 13,050
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 02143?
679 business establishments had a location in this ZIP code in 2023, 26 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services110
- Accommodation and food services100
- Retail trade83
- Other services (except public administration)76
- Health care and social assistance73
- Manufacturing35
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 02143?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 02145 | Somerville | 27,495 | $124k | 0.8 mi |
| 02141 | Cambridge | 14,517 | $127k | 1.1 mi |
| 02139 | Cambridge | 40,033 | $135k | 1.3 mi |
| 02129 | Charlestown | 20,032 | $157k | 1.8 mi |
| 02144 | Somerville | 25,448 | $150k | 1.9 mi |
| 02138 | Cambridge | 38,509 | $120k | 2.0 mi |
| 02140 | Cambridge | 21,204 | $135k | 2.0 mi |
| 02142 | Cambridge | 4,737 | $148k | 1.5 mi (near) |
| 02163 | Boston | 1,817 | $85k | 1.7 mi (near) |
| 02114 | Boston | 14,418 | $132k | 2.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.